Index[These Index numbers are taken from the Schilpp reference cited in the Bibliography, pp. 694–730, and from the Collected Papers of Albert Einstein published by Princeton University Press. The latter are indicated by a CP in italic type, the volume number in boldface type, and by the article number within that volume.] 
Year 
Title and English translation[The translations of article titles are generally taken from the published volumes of Einstein's collected papers]The Einstein Papers Project was established in 1986 to assemble, preserve, translate, and publish papers selected from the literary estate of Albert Einstein and from other collections .Sponsored by the Princeton University Press and the Hebrew University of Jerusalem since its inception, the... . For some articles, however, such official translations are not available; unofficial translations are indicated with a ^{§} superscript. 
Journal, volume, pages[The volume number is given in boldface type. Terms such as "ser. 4" in the journal name refer to the series of the journal, which is a grouping of volumes. For example, a journal may appear in yearly volumes for 60 years (volumes 1–60), then start its volume numbering anew in a second series.] 
Classification and notes[The subject classification of Einstein's articles are the first item, and are indicated in boldface type. Any coauthors are always indicated by the second item.] 

Schilpp 1; CP 2, 1 
1901 
Folgerungen aus den Kapillaritätserscheinungen
Conclusions Drawn from the Phenomena of Capillarity 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 4, 513–523, link 
Intermolecular forceIntermolecular forces are forces of attraction or repulsion which act between neighboring particles: atoms, molecules or ions. They are weak compared to the intramolecular forces, the forces which keep a molecule together... s. The first of two papers in which Einstein proposed the (incorrect) theory that the interactions between all molecules are a universal function of distance, in analogy with the inversesquare forceIn physics, an inversesquare law is any physical law stating that a specified physical quantity or strength is inversely proportional to the square of the distance from the source of that physical quantity.... of gravity. Once parameterized, his theory makes reasonably accurate predictions for heavier hydrophobic molecules, but fails for lighter molecules. 
Schilpp 2; CP 2, 2 
1902 
Thermodynamische Theorie der Potentialdifferenz zwischen Metallen und vollständig dissoziierten Lösungen ihrer Salze, und eine elektrische Methode zur Erforschung der Molekularkräfte
On the Thermodynamic Theory of the Difference in Potentials between Metals and Fully Dissociated Solutions of Their Salts and on an Electrical Method for Investigating Molecular Forces 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 8, 798–814, link 
Intermolecular forceIntermolecular forces are forces of attraction or repulsion which act between neighboring particles: atoms, molecules or ions. They are weak compared to the intramolecular forces, the forces which keep a molecule together... s. Einstein's second paper on a universal molecular energy function, this time applied to electrolytic solutionIn chemistry, an electrolyte is any substance containing free ions that make the substance electrically conductive. The most typical electrolyte is an ionic solution, but molten electrolytes and solid electrolytes are also possible.... s. No data are available for comparison. Einstein characterizes these two papers as "worthless" in 1907. 
Schilpp 3; CP 2, 3 
1902 
Kinetische Theorie des Wärmegleichgewichtes und des zweiten Hauptsatzes der Thermodynamik
Kinetic Theory of Thermal Equilibrium and of the Second Law of Thermodynamics 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 9, 417–433, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Study of the equipartition theoremIn classical statistical mechanics, the equipartition theorem is a general formula that relates the temperature of a system with its average energies. The equipartition theorem is also known as the law of equipartition, equipartition of energy, or simply equipartition... and the definitions of temperature and entropyEntropy is a thermodynamic property that can be used to determine the energy available for useful work in a thermodynamic process, such as in energy conversion devices, engines, or machines. Such devices can only be driven by convertible energy, and have a theoretical maximum efficiency when... . 
Schilpp 4; CP 2, 4 
1903 
Eine Theorie der Grundlagen der Thermodynamik
A Theory of the Foundations of Thermodynamics 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 11, 170–187, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . The problem of irreversibilityIn science, a process that is not reversible is called irreversible. This concept arises most frequently in thermodynamics, as applied to processes.... in thermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
Schilpp 5; CP 2, 5 
1904 
Allgemeine molekulare Theorie der Wärme
On the General Molecular Theory of Heat 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 14, 354–362, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Fluctuations and new methods for determining Boltzmann's constant. 
CP 2, 6 
1905 
Review of Giuseppe Belluzzo: "Principi di termodinamica grafica"
Review of Giuseppe Belluzzo: "Principles of Graphic Thermodynamics" 

Beiblätter zu den Annalen der Physik, 29, 78 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 7 
1905 
Review of Albert Fliegner: "Über den Clausius'schen Entropiesatz"
Review of Albert Fliegner: "On Clausius's Law of Entropy" 

Beiblätter zu den Annalen der Physik, 29, 79 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 8 
1905 
Review of William McFadden Orr: "On Clausius' Theorem for Irreversible Cycles, and on the Increase of Entropy" 
Beiblätter zu den Annalen der Physik, 29, 79 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 9 
1905 
Review of George Hartley Bryan: "The Law of Degradation of Energy as the Fundamental Principle of Thermodynamics" 
Beiblätter zu den Annalen der Physik, 29, 80 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 10 
1905 
Review of Nikolay Nikolayevich Schiller: "Einige Bedenken betreffend die Theorie der Entropievermehrung durch Diffusion der Gase bei einander gleichen Anfangsspannungen der letzteren"
Review of Nikolay Nikolayevich Schiller: "Some Concerns Regarding the Theory of Entropy Increase Due to the Diffusion of Gases Where the Initial Pressures of the Latter Are Equal" 

Beiblätter zu den Annalen der Physik, 29, 81 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 11 
1905 
Review of Jakob Johann Weyrauch: "Über die spezifischen Wärmen des überhitzten Wasserdampfes"
Review of Jakob Johann Weyrauch: "On the specific Heats of Superheated Water Vapor" 

Beiblätter zu den Annalen der Physik, 29, 82 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 12 
1905 
Review of Jacobus Henricus van't Hoff: "Einfluss der Änderung der spezifischen Wärme auf die Umwandlungsarbeit"
Review of Jacobus Henricus van't Hoff: "The Influence of the Change in Specific Heat on the Work of Conversion" 

Beiblätter zu den Annalen der Physik, 29, 82 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 13 
1905 
Review of Arturo Giammarco: "Un caso di corrispondenza in termodinamica"
Review of Arturo Giammarco: "A Case of Corresponding States in Thermodynamics" 

Beiblätter zu den Annalen der Physik, 29, 84 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
Schilpp 7; CP 2, 14 
1905 
Über einen die Erzeugung und Verwandlung des Lichtes betreffenden heuristischen Gesichtspunkt
On a Heuristic Point of View Concerning the Production and Transformation of Light 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 17, 132–148, link 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Proposal of the photonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... as a quantum of energy, supported by many independent arguments. 
Schilpp 8; CP 2, 16 
1905 
Über die von der molekularkinetischen Theorie der Wärme geforderte Bewegung von in ruhenden Flüssigkeiten suspendierten Teilchen
On the Movement of Small Particles Suspended in Stationary Liquids Required by the MolecularKinetic Theory of Heat 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 17, 549–560, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Seminal treatment of Brownian motionBrownian motion or pedesis is the presumably random drifting of particles suspended in a fluid or the mathematical model used to describe such random movements, which is often called a particle theory.The mathematical model of Brownian motion has several realworld applications... , a type of translational diffusionMolecular diffusion, often called simply diffusion, is the thermal motion of all particles at temperatures above absolute zero. The rate of this movement is a function of temperature, viscosity of the fluid and the size of the particles... . 
CP 2, 17 
1905 
Review of Karl Fredrik Slotte: "Über die Schmelzwärme"
Review of Karl Fredrik Slotte: "On the Heat of Fusion" 

Beiblätter zu den Annalen der Physik, 29, 135 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 18 
1905 
Review of Karl Fredrik Slotte: "Folgerungen aus einer thermodynamischen Gleichung"
Review of Karl Fredrik Slotte: "Conclusions Drawn from a Thermodynamic Equation" 

Beiblätter zu den Annalen der Physik, 29, 135 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 19 
1905 
Review of Emile Mathias: "La constante a des diamètres rectilignes et les lois des états correspondents"
Review of Emile Mathias: "The Constant a of Rectilinear Diameters and the Laws of Corresponding States" 

Beiblätter zu den Annalen der Physik, 29, 136 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 20 
1905 
Review of Max Planck: "On Clausius' Theorem for Irreversible Cycles, and on the Increase of Entropy" 
Beiblätter zu den Annalen der Physik, 29, 29 (1905) 137 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 21 
1905 
Review of Edgar Buckingham: "On Certain Difficulties Which Are Encountered in the Study of Thermodynamics" 
Beiblätter zu den Annalen der Physik, 29, 137 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 22 
1905 
Review of Paul Langevin: "Sur une formule fondamentale de la théorie cinétique"
Review of Paul Langevin: "On a Fundamental Formula of the Kinetic Theory" 

Beiblätter zu den Annalen der Physik, 29, 138 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
Schilpp 9; CP 2, 23 
1905 
Elektrodynamik bewegter Körper
On the Electrodynamics of Moving Bodies 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 17, 891–921, link, Wikilivres 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . This seminal paper gave birth to special relativity (SR). In particular, it stated the two postulates of SR (uniform motion is undetectable, and the speed of light is always constant) and its kinematicsKinematics is the branch of classical mechanics that describes the motion of bodies and systems without consideration of the forces that cause the motion.... . 
Schilpp 10; CP 2, 24 
1905 
Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig?
Does the Inertia of a Body Depend upon its Energy Content? 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 18, 639–641, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . This paper derived the conclusion that mass was equivalent to an energy and vice versa, leading to the famous equation E=mc^{2}. 
CP 2, 25 
1905 
Review of Heinrich Birven: Grundzüge der mechanischen Wärmetheorie
Review of Heinrich Birven: Fundamentals of the Mechanical Theory of Heat 

Beiblätter zu den Annalen der Physik, 29, 175 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 26 
1905 
Review of Auguste Ponsot: "Chaleur dans le déplacement de 1'équilibre d'un système capillaire"
Review of Auguste Ponsot: "Heat in the Displacement of the Equilibrium of a Capillary System" 

Beiblätter zu den Annalen der Physik, 29, 175 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 27 
1905 
Review of Karl Bohlin: "Sur le choc, considéré comme fondement des théories cinétiques de la pression des gaz et de la gravitation universelle"
Review of Karl Bohlin: "On Impact Considered as the Basis of Kinetic Theories of Gas Pressure and of Universal Gravitation" 

Beiblätter zu den Annalen der Physik, 29, 176 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 28 
1905 
Review of Georges Meslin: "Sur la constante de la loi de Mariotte et GayLussac"
Review of Georges Meslin: "On the Constant in Mariotte and GayLussac's Law" 

Beiblätter zu den Annalen der Physik, 29, 177 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 29 
1905 
Review of Albert Fliegner: "Das Ausströmen heissen Wassers aus Gefässmündungen"
Review of Albert Fliegner: "The Efflux of Hot Water from Container Orifices 

Beiblätter zu den Annalen der Physik, 29, 177 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 30 
1905 
Review of Jakob Johann Weyrauch: Grundriss der Wärmetheorie. Mit zahlreichen Beispielen und Anwendungen
Review of Jakob Johann Weyrauch: "An Outline of the Theory of Heat. With Numerous Examples and Applications. Part 1 

Beiblätter zu den Annalen der Physik, 29, 178 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
CP 2, 31 
1905 
Review of Albert Fliegner: "Über den Wärmewert chemischer Vorgänge"
Review of Albert Fliegner: "On the Thermal Value of Chemical Processes" 

Beiblätter zu den Annalen der Physik, 29, 179 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
Schilpp 11; CP 2, 33 
1906 
Eine neue Bestimmung der Moleküldimensionen
A New Determination of Molecular Dimensions 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 19, 289–306, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Hydrodynamic determination of molecular volumes. 
Schilpp 12; CP 2, 32 
1906 
Zur Theorie der Brownschen Bewegung
On the Theory of Brownian Motion 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 19, 371–381, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Rotational Brownian motion, an example of rotational diffusionRotational diffusion is a process by which the equilibrium statistical distribution of the overall orientation of particles or molecules is maintained or restored... . 
Schilpp 13; CP 2, 34 
1906 
Theorie der Lichterzeugung und Lichtabsorption
On the Theory of Light Production and Light Absorption 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 20, 199–206, link 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Einstein reconciles his and Planck's independent derivations of the blackbody formula E=hν. Planck's derivation of this formula ascribed it to a restriction on the energy changes possible when radiation is produced or absorbed by matter, which implied no restriction on the energies of either matter or radiation. Einstein's 1905 derivation ascribed it to a restriction on the energy of radiation alone, but in this paper, he proposes the modern idea that the energies of both matter and radiation are quantized, which led to his work on quantum specific heats, such as reference #16. 
Schilpp 14; CP 2, 35 
1906 
Prinzip von der Erhaltung der Schwerpunktsbewegung und die Trägheit der Energie
The Principle of Conservation of Motion of the Center of Gravity and the Inertia of Energy 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 20, 627–633, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . First statement that the conservation of mass is a special case of the conservation of energy. 
Schilpp 15; CP 2, 36 
1906 
Eine Methode zur Bestimmung des Verhältnisses der transversalen und longitudinalen Masse des Elektrons
On a Method for the Determination of the Ratio of the Transverse and the Longitudinal Mass of the Electron 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 21, 583–586, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . A French translation appeared in the journal L'Éclairage électrique, volume 49, pages 493–494. 
CP 2, 37 
1906 
Review of Max Planck: Vorlesungen über die Theorie der Wärmestrahlung
Review of Max Planck: Lectures on the Theory of Thermal Radiation 

Beiblätter zu den Annalen der Physik, 30, 211 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . 
Schilpp 16; CP 2, 38 
1907 
Planckshe Theorie der Strahlung und die Theorie der Spezifischen Wärme
Planck's Theory of Radiation and the Theory of Specific Heat 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 22, 180–190, 800 link and correction 
Specific heats. Seminal work applying Planck's law to the oscillations of atoms and molecules in solids. Resolved the 19th century paradox of the equipartition theoremIn classical statistical mechanics, the equipartition theorem is a general formula that relates the temperature of a system with its average energies. The equipartition theorem is also known as the law of equipartition, equipartition of energy, or simply equipartition... in classical physics, and introduced the Einstein modelThe Einstein solid is a model of a solid based on two assumptions:* Each atom in the lattice is an independent 3D quantum harmonic oscillator* All atoms oscillate with the same frequency... of solids, which led to the current Debye modelIn thermodynamics and solid state physics, the Debye model is a method developed by Peter Debye in 1912 for estimating the phonon contribution to the specific heat in a solid. It treats the vibrations of the atomic lattice as phonons in a box, in contrast to the Einstein model, which treats the... . Showed that the quantum mechanicalQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... law E=hν was a general law of physics, and not merely special to blackbody radiation. 
Schilpp 17; CP 2, 39 
1907 
Gültigkeit des Satzes vom thermodynamischen Gleichgewicht und die Möglichkeit einer neuen Bestimmung der Elementarquanta
On the Limit of Validity of the Law of Thermodynamic Equilibrium and on the Possibility of a New Determination of the Elementary Quanta 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 22, 569–572, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Applies his theory of fluctuations to determine Boltzmann's constant from the voltageVoltage, otherwise known as electrical potential difference or electric tension is the difference in electric potential between two points — or the difference in electric potential energy per unit charge between two points... fluctuations in a capacitorA capacitor is a passive twoterminal electrical component used to store energy in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors separated by a dielectric ; for example, one common construction consists of metal foils separated... . Resulted in a novel lownoise technique for amplifying voltages, as described in reference #25. 
Schilpp 18; CP 2, 41 
1907 
Möglichkeit einer neuen Prüfung des Relativitätsprinzips
On the Possibility of a New Test of the Relativity Principle 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 23, 197–198, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Einstein's discovery of the transverse Doppler effect, in which the perceived frequency is shifted even when the line between the wave source and receiver and the source's velocity are perpendicular. 
Schilpp 19 
1907 
Bemerkung zur Notiz des Herrn P. Ehrenfest: Translation deformierbarer Elektronen und der Flächensatz
Comments on the Note of Mr. Paul Ehrenfest: The Translatory Motion of Deformable Electrons and the Area Law 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 23, 206–208, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Discusses the difficulty of applying Lorentz transformations to rigid bodies. 
Schilpp 20; CP 2, 45 
1907 
Die vom Relitivätsprinzip geforderte Trägheit der Energie
On the Inertia of Energy Required by the Relativity Principle 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 23, 371–384, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . First statement that the total energy of a moving particle equals E=mc^{2}. Derives the transformation of energy and momentum under the influence of external forces (relativistic dynamics). Notes again the difficulty of applying Lorentz transformations to rigid bodies (see reference #19). Finally, speculates that Maxwell's equations will prove to be the limiting case for large numbers of lightquanta, just as thermodynamics is a limiting case of statistical mechanics. 
CP 2, 46 
1907 
Review of Jakob Johann Weyrauch: Grundriss der Wärmetheorie. Mit zahlreichen Beispielen und Anwendungen
Review of Jakob Johann Weyrauch: An Outline of the Theory of Heat. With Numerous Examples and Applications. Part 2. 

Beiblätter zu den Annalen der Physik, 31, 251 
ThermodynamicsThermodynamics is a physical science that studies the effects on material bodies, and on radiation in regions of space, of transfer of heat and of work done on or by the bodies or radiation... . 
Schilpp 21; CP 2, 47 
1907 
Relativitätsprinzip und die aus demselben gezogenen Folgerungen
On the Relativity Principle and the Conclusions Drawn from It 

Jahrbuch der Radioaktivität, 4, 411–462, link 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . A correction appeared in volume 5, pp. 98–99, Berichtigungen. First appearance (page 443) of the equation E=mc^{2}. This paper also marks the beginning of Einstein's long development of general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... ; here he derives the equivalence principleIn the physics of general relativity, the equivalence principle is any of several related concepts dealing with the equivalence of gravitational and inertial mass, and to Albert Einstein's assertion that the gravitational "force" as experienced locally while standing on a massive body is actually... , gravitational redshiftIn astrophysics, gravitational redshift or Einstein shift describes light or other forms of electromagnetic radiation of certain wavelengths that originate from a source that is in a region of a stronger gravitational field that appear to be of longer wavelength, or redshifted, when seen or... , and the gravitational bending of light. Einstein returns to these topics in 1911. 
Schilpp 22; CP 2, 40 
1907 
Theoretische Bemerkungen über die Brownsche Bewegung
Theoretical Remarks on Brownian Motion 

Zeitschrift für Elektrochemie und angewandte physikalische Chemie, 13, 41–42 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Brief note on the technical meaning of "average velocity". 
Schilpp 23; CP 2, 51 
1908 
Elektromagnetische Grundgleichungen für bewegte Körper
On the Fundamental Electromagnetic Equations for Moving Bodies 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 26, 532–540, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Coauthored with J. Laub. A correction appeared in volume 27, p.232, Berichtigungen. See also publication #27. 
Schilpp 24; CP 2, 52 
1908 
Die im elektromagnetischen Felde auf ruhende Körper ausgeübten ponderomotorischen Kräfte
On the Ponderomotive Forces Exerted on Bodies at Rest in the Electromagnetic Field 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 26, 541–550, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Coauthored with J. Laub. 
Schilpp 25; CP 2, 48 
1908 
Neue elektrostatische Methode zur Messung kleiner Elektrizitätsmengen
A New Electrostatic Method for the Measurement of Small Quantities of Electricity 

Physikalische Zeitschrift, 9, 216–217 
Electromagnetism Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation... . Novel experimental method for measuring tiny amounts of charge, by first charging a variable capacitor at low capacitance, then changing it to high capacitance and discharging it to another capacitor. An apparatus for this amplification was constructed by two brothers, Johann Conrad Habicht and Franz Paul Habicht, in collaboration with Einstein and published in Physikalische Zeitschrift, 11, 532 (1910). 
Schilpp 26; CP 2, 50 
1908 
Elementare Theorie der Brownschen Bewegung
Elementary Theory of Brownian Motion 

Zeitschrift für Elektrochemie, 14, 235–239 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Semipopular review. 
Schilpp 27; CP 2, 54 
1909 
Bemerkungen zu unserer Arbeit: Elektromagnetische Grundgleichungen für bewegte Körper
Remarks on Our Paper: On the Fundamental Electromagnetic Equations for Moving Bodies 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 28, 445–447, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Coauthored with J. Laub. 
Schilpp 28; CP 2, 55 
1909 
Bemerkung zur Arbeit von Mirimanoff: Die Grundgleichungen...
Comment on the Paper of D. Mirimanoff: On the Fundamental Equations... 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 28, 885–888, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Notes similarity to Hermann MinkowskiHermann Minkowski was a German mathematician of Ashkenazi Jewish descent, who created and developed the geometry of numbers and who used geometrical methods to solve difficult problems in number theory, mathematical physics, and the theory of relativity. Life and work :Hermann Minkowski was born... 's work. 
Schilpp 29; CP 2, 56 
1909 
Zum gegenwärtigen Stande des Strahlungsproblems
On the Present Status of the Radiation Problem 

Physikalische Zeitschrift, 10, 185–193 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Review article on electromagnetic radiationElectromagnetic radiation is a form of energy that exhibits wavelike behavior as it travels through space... , and an important forerunner of publication #30. 
Schilpp 29b; CP 2, 57 
1909 
No title 
Physikalische Zeitschrift, 10, 323–324 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Walther Ritz's joint communique with Einstein (coauthor) on their differing viewpoints of the advanced and retarded solutions of Maxwell's equations. Einstein argues that the physical restriction to retarded solutions is not a law, but probabilistic; Ritz states that the same restriction is the basis of the 2nd law of thermodynamics. 
Schilpp 30; CP 2, 60 
1909 
Entwicklung unserer Anschauungen über das Wesen und die Konstitution der Strahlung
On the Development of Our Views Concerning the Nature and Constitution of Radiation 

Physikalische Zeitschrift, 10, 817–825 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Pivotal address before the 81st assembly of the Gesellschaft Deutscher Naturforscher, held in Salzburg, where Einstein showed that photonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s must carry momentum and should be treated as particles. Notes that electromagnetic radiationElectromagnetic radiation is a form of energy that exhibits wavelike behavior as it travels through space... must have a dual nature, at once both wavelike and particulate. Also published in the journal Deutsche physikalische Gesellschaft, Verhandlungen, 11, pp. 482–500. An English translation is available at the English Wikisource. 
Schilpp 31; CP 3, 7 
1910 
Über einen Satz der Wahrscheinlichkeitsrechnung und seine Anwendung in der Strahlungstheorie
On a Theorem of the Probability Calculus and Its Application in the Theory of Radiation 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 33, 1096–1104, link 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Coauthored with L. Hopf. See also publication #79. 
Schilpp 32; CP 3, 8 
1910 
Statistische Untersuchung der Bewegung eines Resonators in einem Strahlungsfeld
Statistical Investigation of a Resonator's Motion in a Radiation Field 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 33, 1105–1115, link 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Coauthored with L. Hopf. 
Schilpp 33; CP 3, 9 
1910 
Theorie der Opaleszenz von homogenen Flüssigkeiten und Flüssigkeitsgemischen in der Nähe des kritischen Zustandes
The Theory of the Opalescence of Homogeneous Fluids and Liquid Mixtures near the Critical State 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 33, 1275–1298, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Seminal paper on critical opalescenceCritical opalescence is a phenomenon which arises in the region of a continuous, or secondorder, phase transition. Originally reported by Thomas Andrews in 1869 for the liquidgas transition in carbon dioxide, many other examples have been discovered since. The phenomenon is most commonly... . 
Schilpp 34; CP 3, 2 
1910 
Principe de relativité et ses conséquences dans la physique moderne
The Principle of Relativity and Its Consequences in Modern Physics 

Archives des sciences physiques et naturelles (ser. 4), 29, 5–28, 125–244 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Translation by E. Guillaume, but does not correspond to reference #21. 
Schilpp 35; CP 3, 5 
1910 
Théorie des quantités lumineuses et la question de la localisation de l'énergie électromagnetique
On the Theory of Light Quanta and the Question of the Localization of Electromagnetic Energy 

Archives des sciences physiques et naturelles (ser. 4), 29, 525–528 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 36; CP 3, 6 
1910 
Forces pondéromotrices qui agissent sur les conducteurs ferromagnétique disposés dans un champs magnétique et parcourus par un courant
On the Ponderomotive Forces Acting on Ferromagnetic Conductors Carrying a Current in a Magnetic Field 

Archives des sciences physiques et naturelles (ser. 4), 30, 323–324 
Electromagnetism Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation... . 
Schilpp 37; CP 3, 12 
1911 
Bemerkung zu dem Gesetz von Eötvös

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 34, 165–169, link 
Intermolecular forceIntermolecular forces are forces of attraction or repulsion which act between neighboring particles: atoms, molecules or ions. They are weak compared to the intramolecular forces, the forces which keep a molecule together... s and fluid mechanicsFluid mechanics is the study of fluids and the forces on them. Fluid mechanics can be divided into fluid statics, the study of fluids at rest; fluid kinematics, the study of fluids in motion; and fluid dynamics, the study of the effect of forces on fluid motion... . 
Schilpp 38; CP 3, 13 
1911 
Beziehung zwischen dem elastischen Verhalten und der Spezifischen Wärme mit einatomigem Molekül
A Relationship between Elastic Behavior and Specific Heat in Solids with a Monatomic Molecule 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 34, 170–174, link 
Specific heats. Einstein tries to connect a characteristic frequency in his 1907 theory of specific heats to the elastic properties of the solid. See also Bemerkung zu meiner Arbeit: 'Eine Beziehung zwischen dem elastischen Verhalten ...'", p. 590. 
Schilpp 39; CP 3, 10 
1911 
Bemerkungen zu den P. Hertzschen Arbeiten: Mechanische Grundlagen der Thermodynamik
Comments on P. Hertz's Papers: On the Mechanical Foundations of Thermodynamics 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 34, 175–176, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . 
Schilpp 40; CP 3, 14 
1911 
Berichtigung zu meiner Arbeit: Eine neue Bestimmung der Moleküldimensionen
Correction to My Paper: A New Determination of Molecular Dimensions 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 34, 591–592, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Correction to publication #11 that produces an excellent estimate of the Avogadro constant. 
Schilpp 41; CP 3, 21 
1911 
Elementare Betrachtungen über die thermische Molekularbewegung in festen Körpern
Elementary Observations on Thermal Molecular Motion in Solids 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 35, 679–694, link 
Specific heats. Recognizing that his 1907 model of specific heats is incorrect at very low temperatures, Einstein tries to improve it. The correct answer came a year later with the Debye modelIn thermodynamics and solid state physics, the Debye model is a method developed by Peter Debye in 1912 for estimating the phonon contribution to the specific heat in a solid. It treats the vibrations of the atomic lattice as phonons in a box, in contrast to the Einstein model, which treats the... . 
Schilpp 42; CP 3, 23 
1911 
Einfluss der Schwerkraft auf die Ausbreitung des Lichtes
On the Influence of Gravitation on the Propagation of Light 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 35, 898–908, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . In this paper, Einstein resumes his development of general relativity, last discussed in 1907. Here, Einstein realizes that a new theory is needed to replace both special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and Newton'sSir Isaac Newton PRS was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian, who has been "considered by many to be the greatest and most influential scientist who ever lived."... theory of gravitationGravitation, or gravity, is a natural phenomenon by which physical bodies attract with a force proportional to their mass. Gravitation is most familiar as the agent that gives weight to objects with mass and causes them to fall to the ground when dropped... . He also realizes that special relativity and the equivalence principleIn the physics of general relativity, the equivalence principle is any of several related concepts dealing with the equivalence of gravitational and inertial mass, and to Albert Einstein's assertion that the gravitational "force" as experienced locally while standing on a massive body is actually... hold locally, not globally. 
Schilpp 43; CP 3, 17 
1911 
Relativitätstheorie

Naturforschende Gesellschaft, Zürich, Vierteljahresschrift, 56, 1–14 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and (possibly) general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . An address given at the conference of the Zurich Society of Scientists. 
Schilpp 44; CP 3, 22 
1911 
Zum Ehrenfestschen Paradoxon

Physikalische Zeitschrift, 12, 509–510 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Clears up confusion about the Lorentz contraction. 
Schilpp 45; CP 4, 2 and 5 
1912 
Thermodynamische Begründung des photochemischen Äquivalentgesetzes
Thermodynamic Proof of the Law of Photochemical Equivalence 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 37, 832–838, link 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . See also volume 38, pp. 881–884, Nachtrag zu meiner Arbeit: 'Thermodynamische Begründung des photochemischen Äquivalentgesetzes' 
Schilpp 46; CP 4, 3 
1912 
Lichtgeschwindigkeit und Statik des Gravitationsfeldes
The Speed of Light and the Statics of the Gravitational Field 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 38, 355–369, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . First of two papers (see next entry for second) in the continuing development of general relativity (see reference #42). These two papers are the last in which Einstein allows time to be warped while keeping space flat (uncurved). In these papers, he realizes that the Lorentz transformationIn physics, the Lorentz transformation or LorentzFitzgerald transformation describes how, according to the theory of special relativity, two observers' varying measurements of space and time can be converted into each other's frames of reference. It is named after the Dutch physicist Hendrik... s of special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... must be generalized and that the new theory of gravitation must be nonlinear, since gravitational energy can itself gravitate. 
Schilpp 47; CP 4, 4 
1912 
Theorie des statischen Gravitationsfeldes
On the Theory of the Static Gravitational Field 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 38, 443–458, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Second of two papers (see previous entry for first) in the continuing development of general relativity. 
Schilpp 48; CP 4, 6 
1912 
Antwort auf eine Bemerkung von J. Stark: Anwendung des Planckschen Elementargesetzes
Response to a Comment by J. Stark: 'On an Application of Planck's Fundamental Law... 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 38, 888, link 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 49; CP 4, 8 
1912 
Relativität und Gravitation: Erwiderung auf eine Bemerkung von M. Abraham
Relativity and Gravitation. Reply to a Comment by M. Abraham 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 38, 1059–1064, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 50; CP 4, 9 
1912 
Bemerkung zu Abraham's vorangehender Auseinandersetzung: Nochmals Relativität und Gravitation
Comment on Abraham's Preceding Discussion 'Once Again, Relativity and Gravitation 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 39, 704, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 52; CP 4, 7 
1912 
Gibt es eine Gravitationswirkung die der elektromagnetischen Induktionswirkung analog ist?
Is There a Gravitational Effect Which Is Analogous to Electrodynamic Induction? 

Vierteljahrschrift für gerichtliche Medizin (ser. 3), 44, 37–40 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 53; CP 4, 13 
1913 
Entwurf einer verallgemeinerten Relativitätstheorie und eine Theorie der Gravitation. I. Physikalischer Teil von A. Einstein II. Mathematischer Teil von M. Grossmann
Outline of a Generalized Theory of Relativity and of a Theory of Gravitation. I. Physical Part by A. Einstein II. Mathematical Part by M. Grossmann 

Zeitschrift für Mathematik und Physik, 62, 225–244, 245–261 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . A breakthrough paper, written in collaboration with Marcel GrossmannMarcel Grossmann was a mathematician of Jewish ancestry, and a friend and classmate of Albert Einstein. He became a Professor of Mathematics at the Federal Polytechnic Institute in Zurich, today the ETH Zurich, specializing in descriptive geometry.... , in which the single Newtonian scalarIn physics, a scalar is a simple physical quantity that is not changed by coordinate system rotations or translations , or by Lorentz transformations or spacetime translations . This is in contrast to a vector... gravitational fieldNewton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them... is replaced by ten fields, which are the components of a symmetric, fourdimensional metric tensorIn the mathematical field of differential geometry, a metric tensor is a type of function defined on a manifold which takes as input a pair of tangent vectors v and w and produces a real number g in a way that generalizes many of the familiar properties of the dot product of vectors in Euclidean... . However, the correct equations describing these fields are not identified. Reviewed critically in reference #68. See also references #21, 42, 46 and 47. 
Schilpp 54; CP 4, 11 
1913 
Einige Argumente für die Annahme einer molekular Agitation beim absoluten Nullpunkt
Some Arguments for the Assumption of Molecular Agitation at Absolute Zero 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 40, 551–560, link 
Specific heats. Coauthored with O. Stern. Einstein and Stern attempt to explain the specific heats of diatomic gases, such as molecular hydrogenHydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly... , H_{2}. Although qualitatively correct, they are quantitatively inaccurate. 
Schilpp 55; CP 4, 12 
1913 
Déduction thermodynamique de la loi de l'équivalence photochimique
Thermodynamic Deduction of the Law of Photochemical Equivalence 

Journal de physique (ser. 5), 3, 277–282 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Not a translation of reference #45, but rather an address before the Société Française de Physique, held on March 27, 1913. 
Schilpp 56; CP 4, 16 
1913 
Physikalische Grundlagen einer Gravitationstheorie
Physical Foundations of a Theory of Gravitation 

Naturforschende Gesellschaft, Zürich, Vierteljahrsschrift, 58, 284–290 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Address before the Swiss Society of Scientists on September 9, 1913. A résumé is printed in the Schweizerische naturforschende Gesellschaft, Verhandlungen, 1913 (part 2), pp. 137–138. 
Schilpp 57; CP 4, 23 
1913 
Max Planck als Forscher

Naturwissenschaften, 1, 1077–1079 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 58; CP 4, 17 
1913 
Zum gegenwärtigen Stande des Gravitationsproblems
On the Present State of the Problem of Gravitation 

Physikalische Zeitschrift, 14, 1249–1266 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Address on September 21, 1913 to the 85th Versammlung Deutscher Naturforscher in Vienna. The discussion following Einstein's address is included in this citation. This review was also published in the Gesellschaft deutscher Naturforscher und Ärzte, Verhandlungen, 1914, pp. 3–24. A referat was also published in the journal Himmel und Erde, 26, pp. 90–93. 
Schilpp 59; CP 4, 28 
1914 
Nordströmsche Gravitationstheorie vom Standpunkt des absoluten Differentialkalküls
Nordstöm's Theory of Gravitation from the Point of View of the Absolute Differential Calculus 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 44, 321–328, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with A. D. FokkerAdriaan Daniël Fokker , was a Dutch physicist and musician.Fokker was born in Buitenzorg, Dutch East Indies ; he was a cousin of the aeronautical engineer Anthony Fokker... . Shows that the competing field theoryIn theoretical physics, Nordström's theory of gravitation was a predecessor of general relativity. Strictly speaking, there were actually two distinct theories proposed by the Finnish theoretical physicist Gunnar Nordström, in 1912 and 1913 respectively... of Gunnar NordströmGunnar Nordström was a Finnish theoretical physicist best remembered for his theory of gravitation, which was an early competitor of general relativity... could be recast as a special case of the EinsteinGrossmann equations (see reference #53). 
Schilpp 60 
1914 
Bases physiques d'une théorie de la gravitation
Physical Foundations of a Theory of Gravitation^{§} 

Archives des sciences physiques et naturelles (ser. 4), 37, 5–12 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Translated by E. Guillaume. 
Schilpp 61 
1914 
Bemerkung zu P. Harzers Abhandlung: Die Mitführung des Lichtes in Glas und die Aberration
Observation on P. Harzer's Article: Dragging of Light in Glass and Aberration^{§} 

Astronomische Nachrichten, 199, 8–10, link 
Electromagnetism Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation... and special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . 
Schilpp 62 
1914 
Antwort auf eine Replik P. Harzers
Answer to P. Harzer's Reply^{§} 

Astronomische Nachrichten, 199, 47–48, link 
Electromagnetism Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation... and special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . 
Schilpp 63 
1914 
Zum gegenwärtigen Stande des Problems der spezifischen Wärme
On the Present Status of the Problem of Specific Heats^{§} 

Deutsche Bunsengesellschaft, Abhandlungen, 7, 330–364 
Specific heats. German edition of reference #51; pages 353–364 include the discussion following Einstein's address. 
Schilpp 64; CP 6, 5 
1914 
Beiträge zur Quantentheorie
Contributions to Quantum Theory^{§} 

Deutsche physikalische Gesellschaft, Berichte, 1914, 820–828 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . Reprinted in volume 16 of the Verhandlungen of the same society. 
Schilpp 65; CP 4, 27 
1914 
Zur Theorie der Gravitation
On the Theory of Gravitation 

Naturforschende Gesellschaft, Zürich, Vierteljahrsschrift, 59, 4–6 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 66 
1914 
Review of H. A. LorentzHendrik Antoon Lorentz was a Dutch physicist who shared the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and theoretical explanation of the Zeeman effect... : Das Relativitätsprinzip
Review of H. A. Lorentz: The Principle of Relativity^{§} 

Naturwissenschaften, 2, 1018 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and (possibly) general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 67; CP 4, 24 
1914 
Nachträgliche Antwort auf eine Frage von Reissner
Supplementary Response to a Question by Mr. Reißner 

Physikalische Zeitschrift, 15, 108–110 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Concerns the mass of a gravitational field itself. 
Schilpp 68; CP 4, 25 
1914 
Principielles zur verallgemeinerten Relativitätstheorie und Gravitationstheorie
On the Foundations of the Generalized Theory of Relativity and the Theory of Gravitation 

Physikalische Zeitschrift, 15, 176–180 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Reply to Gustav MieGustav Adolf Feodor Wilhelm Ludwig Mie was a German physicist.Biography:Mie was born in Rostock. From 1886 he studied mathematics and physics at the University of Rostock. In addition to his major subjects, he also attended lectures in chemistry, zoology, geology, mineralogy, astronomy as well as... on the relationship between reference #53 and Hermann MinkowskiHermann Minkowski was a German mathematician of Ashkenazi Jewish descent, who created and developed the geometry of numbers and who used geometrical methods to solve difficult problems in number theory, mathematical physics, and the theory of relativity. Life and work :Hermann Minkowski was born... 's work. 
Schilpp 69; CP 6, 3 
1914 
Antrittsrede

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1914 (pt. 2), 739–742 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 70; CP 6, 9 
1914 
Formale Grundlage de allgemeinen Relativitätstheorie
Formal Foundations of the General Theory of Relativity^{§} 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1914 (part 2), 1030–1085 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . An important paper in the development of general relativity. Einstein still has not derived correct field equations, but he derives the geodesic motion of point particles, relates gravitational fields to rotation, and rederives his 1907 results about the bending of light and gravitational redshiftIn astrophysics, gravitational redshift or Einstein shift describes light or other forms of electromagnetic radiation of certain wavelengths that originate from a source that is in a region of a stronger gravitational field that appear to be of longer wavelength, or redshifted, when seen or... using the new metric tensorIn the mathematical field of differential geometry, a metric tensor is a type of function defined on a manifold which takes as input a pair of tangent vectors v and w and produces a real number g in a way that generalizes many of the familiar properties of the dot product of vectors in Euclidean... theory. 
Schilpp 71; CP 4, 31 
1914 
Zum Relativitätsproblem
On the Relativity Problem 

Scientia (Bologna), 15, 337–348 link 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and (possibly) general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 72 
1914 
Physikalische Grundlagen und leitende Gedanken für eine Gravitationstheorie
Physical Foundations and Suggestive Thoughts for a Gravitational Theory^{§} 

Verhandlungen der Schweizerischen naturforschenden Gesellschaft, 96 (pt. 2), 146 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Listed only by title; same lecture as publication #56. 
Schilpp 73 
1914 
Gravitationstheorie

Verhandlungen der Schweizerischen naturforschenden Gesellschaft, 96 (pt. 2), 136–137 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . For full text, see reference #56. 
Schilpp 74; CP 6, 1 
1914 April 26 
Relativitätsprinzip
On the Principle of Relativity 

Vossische Zeitung, 33–34 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and (possibly) general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 75; CP 6, 2 
1914 
Kovarianzeigenschaften der Feldgleichungen der auf die verallgemeinerte Relativitätstheorie gegründeten Gravitationstheorie
Covariance Properties of the Field Equations of the Theory of Gravitation Based on the Generalized Theory of Relativity 

Zeitschrift für Mathematik und Physik, 63, 215–225 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with M. Grossmann. 
Schilpp 78 
1915 
Proefondervindelijk bewijs voor het bestan der moleculaire stroomen von Ampère
Experimental Proof of the Existence of Ampère's Molecular Currents 

Akademie van Wetenschappen, Amsterdam, Verslag. (ser. 4), 23, 1449–1464 
Einsteinde Haas effect The Einstein–de Haas effect, or the Richardson effect , is a physical phenomenon delineated by Albert Einstein and Wander Johannes de Haas in the mid 1910's, that exposes a relationship between magnetism, angular momentum, and the spin of elementary particles... . Coauthored with WJ de HaasWander Johannes de Haas was a Dutch physicist and mathematician. He is best known for the Shubnikov–de Haas effect, the de Haas–van Alphen effect and the Einstein–de Haas effect.Personal life:... . 
Schilpp 79; CP 6, 18 
1915 
Antwort auf eine Abhandlung M. von LauesMax Theodor Felix von Laue was a German physicist who won the Nobel Prize in Physics in 1914 for his discovery of the diffraction of Xrays by crystals... : Ein Satz der Wahrscheinlichkeitsrechnung und seine Anwendung auf die Strahlungstheorie
Response to a Paper by M. von Laue: A Theorem in Probability Calculus and Its Application to Radiation Theory 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 47, 879–885, link 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 80; CP 6, 23 
1915 
Experimenteller Nachweis des Ampèreschen Molekularströme
Experimental Proof of Ampère's Molecular Currents 

Verhandlungen der Deutschen Physikalischen Gesellschaft, 17, 152–170, 203 (Berichtigung), 420 
Einsteinde Haas effect The Einstein–de Haas effect, or the Richardson effect , is a physical phenomenon delineated by Albert Einstein and Wander Johannes de Haas in the mid 1910's, that exposes a relationship between magnetism, angular momentum, and the spin of elementary particles... . Coauthored with WJ de HaasWander Johannes de Haas was a Dutch physicist and mathematician. He is best known for the Shubnikov–de Haas effect, the de Haas–van Alphen effect and the Einstein–de Haas effect.Personal life:... . 
Schilpp 81 
1915 
Experimenteller Nachweis des Ampèreschen Molekularströme
Experimental Proof of Ampère's Molecular Currents 

Naturwissenschaften, 3, 237–238 
Einsteinde Haas effect The Einstein–de Haas effect, or the Richardson effect , is a physical phenomenon delineated by Albert Einstein and Wander Johannes de Haas in the mid 1910's, that exposes a relationship between magnetism, angular momentum, and the spin of elementary particles... . Coauthored with WJ de HaasWander Johannes de Haas was a Dutch physicist and mathematician. He is best known for the Shubnikov–de Haas effect, the de Haas–van Alphen effect and the Einstein–de Haas effect.Personal life:... . 
Schilpp 82 
1915 
Grundgedanken der allgemeinen Relativitätstheorie und Anwendung dieser Theorie in der Astronomie
Fundamental Ideas of the General Theory of Relativity and the Application of this Theory in Astronomy^{§} 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1915 (part 1), 315 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 83; CP 6, 21 and 22 
1915 
Zur allgemeinen Relativitätstheorie
On the General Theory of Relativity 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1915 (part 2), 778–786, 799–801 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Two of Einstein's four papers in November 1915 that led to the final field equations for general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . The first paper corrected a fundamental misconception and allowed Einstein to finish; however, the second introduced a serious mistake. 
Schilpp 84; CP 6, 24 
1915 
Erklärung der Perihelbewegung des Merkur aus der allgemeinen Relativitätstheorie
Explanation of the Perihelion Motion of Mercury from the General Theory of Relativity 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1915 (part 2), 831–839 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . A pivotal paper in which Einstein shows that general relativity explains the anomalous precession of the planet MercuryMercury is the innermost and smallest planet in the Solar System, orbiting the Sun once every 87.969 Earth days. The orbit of Mercury has the highest eccentricity of all the Solar System planets, and it has the smallest axial tilt. It completes three rotations about its axis for every two orbits... , which had vexed astronomers since 1859. This paper also introduced the important calculational method, the postNewtonian expansionPostNewtonian expansions in general relativity are used for finding an approximate solution of the Einstein equations for the metric tensor. The postNewtonian approximations are expansions in a small parameter, which is the ratio of the velocity of matter, forming the gravitational field, to the... . Einstein also calculated correctly (for the first time) the bending of light by gravity. 
Schilpp 85; CP 6, 25 
1915 
Feldgleichungen der Gravitation
The Field Equations of Gravitation 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1915 (part 2), 844–847 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . This is the defining paper of general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . At long last, Einstein had found workable field equations, which served as the basis for subsequent derivations. 
Schilpp 88; CP 6, 14 
1916 
Experimental proof of the existence of Ampère's molecular currents 
Proceedings of the Akademie van Wetenschappen, Amsterdam, 18, 696–711,link 
Einsteinde Haas effect The Einstein–de Haas effect, or the Richardson effect , is a physical phenomenon delineated by Albert Einstein and Wander Johannes de Haas in the mid 1910's, that exposes a relationship between magnetism, angular momentum, and the spin of elementary particles... . Coauthored with WJ de HaasWander Johannes de Haas was a Dutch physicist and mathematician. He is best known for the Shubnikov–de Haas effect, the de Haas–van Alphen effect and the Einstein–de Haas effect.Personal life:... ; English translation of reference #80. 
Schilpp 89; CP 6, 30 
1916 
Grundlage der allgemeinen Relativitätstheorie
The Foundation of the General Theory of Relativity 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 49, 769–822, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 90; CP 6, 40 
1916 
Über Fr. Kottlers Abhandlung: Einsteins Äquivalenzhypothese und die Gravitation
On Friedrich Kottler's Paper: On Einstein's Equivalence Hypothesis and Gravitation 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 51, 639–642, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 91; CP 6, 28 
1916 
Einfaches Experiment zum Nachweis der Ampèreschen Molekularströme
A Simple Experiment to Demonstrate Ampère's Molecular Currents 

Verhandlungen der Deutschen Physikalischen Gesellschaft, 18, 173–177 
Einsteinde Haas effect The Einstein–de Haas effect, or the Richardson effect , is a physical phenomenon delineated by Albert Einstein and Wander Johannes de Haas in the mid 1910's, that exposes a relationship between magnetism, angular momentum, and the spin of elementary particles... . 
Schilpp 92; CP 6, 34 
1916 
Strahlungsemission und absorption nach der Quantentheorie
Emission and Absorption of Radiation in Quantum Theory 

Verhandlungen der Deutschen Physikalischen Gesellschaft, 18, 318–323 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Seminal paper in which Einstein showed that Planck'sMax Karl Ernst Ludwig Planck, ForMemRS, was a German physicist who actualized the quantum physics, initiating a revolution in natural science and philosophy. He is regarded as the founder of the quantum theory, for which he received the Nobel Prize in Physics in 1918.Life and career:Planck came... quantum hypothesis E = hÉÀ could be derived from a kinetic rate equation. This paper introduced the idea of stimulated emissionIn optics, stimulated emission is the process by which an atomic electron interacting with an electromagnetic wave of a certain frequency may drop to a lower energy level, transferring its energy to that field. A photon created in this manner has the same phase, frequency, polarization, and... (which led to the laserA laser is a device that emits light through a process of optical amplification based on the stimulated emission of photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation... and maserA maser is a device that produces coherent electromagnetic waves through amplification by stimulated emission. Historically, “maser” derives from the original, uppercase acronym MASER, which stands for "Microwave Amplification by Stimulated Emission of Radiation"... ), and Einstein's A and B coefficients provided a guide for the development of quantum electrodynamicsQuantum electrodynamics is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved... , the most accurately tested theory of physics at present. In this work, Einstein begins to realize that quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... seems to involve probabilities and a breakdown of causalityCausality is the relationship between an event and a second event , where the second event is understood as a consequence of the first.... . 
Schilpp 93; CP 6, 38 
1916 
Quantentheorie der Strahlung
On the Quantum Theory of Radiation 

Mitteilungen der Physikalischen Gesellschaft, Zürich, 16, 47–62 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Following his 1909 address (reference #30), Einstein shows that photons must carry momentumIn classical mechanics, linear momentum or translational momentum is the product of the mass and velocity of an object... if Planck's law is to hold. This was confirmed in 1923 by Compton scatteringIn physics, Compton scattering is a type of scattering that Xrays and gamma rays undergo in matter. The inelastic scattering of photons in matter results in a decrease in energy of an Xray or gamma ray photon, called the Compton effect... , for which the 1927 Nobel Prize in PhysicsThe Nobel Prize in Physics is awarded once a year by the Royal Swedish Academy of Sciences. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895 and awarded since 1901; the others are the Nobel Prize in Chemistry, Nobel Prize in Literature, Nobel Peace Prize, and... was awarded and which led to the general acceptance to the photon concept. 
Schilpp 94; CP 6, 36 
1916 
Review of H. A. Lorentz: Théories statistiques en thermodynamique
Review of H. A. Lorentz: Statistical Theories in Thermodynamics: Five Lectures... 

Naturwissenschaften, 4, 480–481 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . 
Schilpp 95; CP 6, 39 
1916 
Elementare Theorie der Wasserwellen und des Fluges
Elementary Theory of Water Waves and of Flight 

Naturwissenschaften, 4, 509–510 
Fluid mechanics Fluid mechanics is the study of fluids and the forces on them. Fluid mechanics can be divided into fluid statics, the study of fluids at rest; fluid kinematics, the study of fluids in motion; and fluid dynamics, the study of the effect of forces on fluid motion... . 
Schilpp 96; CP 6, 29 
1916 
Ernst Mach 
Physikalische Zeitschrift, 17, 101–104 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 97; CP 6, 27 
1916 
Neue formale Deutung der Maxwellschen Feldgleichungen der Elektrodynamik
A New Formal Interpretation of Maxwell's Field Equations of Electrodynamics 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1916 (part 1), 184–187 
Electromagnetism Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation... . 
Schilpp 98 
1916 
Einige anschauliche Überlegungen aus dem Gebiete der Relativitätstheorie
Some Intuitive Considerations from the Field of Relativity Theory^{§} 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1916 (part 1), 423 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Abstract of a paper (never published) dealing with the behavior of clocks and Foucault pendulumThe Foucault pendulum , or Foucault's pendulum, named after the French physicist Léon Foucault, is a simple device conceived as an experiment to demonstrate the rotation of the Earth. While it had long been known that the Earth rotated, the introduction of the Foucault pendulum in 1851 was the... s. 
Schilpp 99; CP 6, 32 
1916 
Näherungsweise Integration der Feldgleichungen der Gravitation
Approximative Integration of the Field Equations of Gravitation 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1916 (part 1), 688–696 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 100 
1916 
Gedächtnisrede auf Karl Schwarzschild
Memorial Lecture on Karl Schwarzschild 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1916 (part 1), 768–770 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 101; CP 6, 41 
1916 
Hamiltonsches Prinzip und allgemeine Relativitätstheorie
Hamilton's Principle and the General Theory of Relativity 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1916 (part 2), 1111–1116 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 103; CP 6, 45 
1917 
Zum Quantensatz von Sommerfeld und Epstein
On the Quantum Theorem of Sommerfeld and Epstein 

Deutsche Physikalische Gesellschaft, Verhandlungen, 19, 82–92 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . Seminal paper for the EinsteinBrillouinKeller methodThe Einstein–Brillouin–Keller method is a semiclassical method to compute eigenvalues in quantum mechanical systems.See also:*Quantum mechanics*WKB approximation*Albert Einstein*Léon Brillouin*Joseph B. Keller... , which describes how to convert a classical system into its quantum mechanicalQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... analogue. 
Schilpp 104 
1917 
Review of H. v. Helmholtz: Zwei Vorträge über Goethe
Review of Hermann von Helmholtz: Two Lectures on Goethe 

Naturwissenschaften, 5, 675 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 105 
1917 
Marian von Smoluchowski 
Naturwissenschaften, 5, 737–738 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 106 
1917 
Quantentheorie der Strahlung
On the Quantum Theory of Radiation 

Physikalische Zeitschrift, 18, 121–128 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 107; CP 6, 43 
1917 
Kosmologische Betrachtungen zur allgemeinen Relativitätstheorie
Cosmological Considerations in the General Theory of Relativity 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1917 (part 1), 142–152 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . This seminal paper marks the beginning of physical cosmologyPhysical cosmology, as a branch of astronomy, is the study of the largestscale structures and dynamics of the universe and is concerned with fundamental questions about its formation and evolution. For most of human history, it was a branch of metaphysics and religion... . Under certain simplifying assumptions, general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... describes the birthThe Big Bang theory is the prevailing cosmological model that explains the early development of the Universe. According to the Big Bang theory, the Universe was once in an extremely hot and dense state which expanded rapidly. This rapid expansion caused the young Universe to cool and resulted in... , the expansion and the ultimate fateThe ultimate fate of the universe is a topic in physical cosmology. Many possible fates are predicted by rival scientific theories, including futures of both finite and infinite duration.... of the UniverseThe Universe is commonly defined as the totality of everything that exists, including all matter and energy, the planets, stars, galaxies, and the contents of intergalactic space. Definitions and usage vary and similar terms include the cosmos, the world and nature... . 
Schilpp 108; CP 6, 47 
1917 
Eine Ableitung des Theorems von Jacobi
A Derivation of Jacobi's Theorem 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1917 (part 2), 606–608 
Mathematical physics Mathematical physics refers to development of mathematical methods for application to problems in physics. The Journal of Mathematical Physics defines this area as: "the application of mathematics to problems in physics and the development of mathematical methods suitable for such applications and... . 
Schilpp 109 
1917 May 23 
Friedrich Adler als Physiker
Friedrich Adler as a Physicist^{§} 

Die Vossische Zeitung, Morgen Ausgabe, no. 259, 2 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 112; CP 7, 4 
1918 
Prinzipielles zur allgemeinen Relativitätstheorie
On the Foundations of the General Theory of Relativity 

Annalen der Physik Annalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peerreviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas... (ser. 4), 55, 241–244, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 113; CP 7, 6 
1918 
Lassen sich Brechungsexponenten der Körper für Röntgenstrahlen experimentell ermitteln?
Is It Possible to Determine Experimentally the XRay Refractive Indices of Solids? 

Verhandlungen der Deutschen Physikalischen Gesellschaft, 20, 86–87 
Electromagnetism Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation... . 
Schilpp 114; CP 7, 15 
1918 
Bemerkung zu Gehrckes Notiz: Über den Äther
Comment on E. Gehrcke's Note: On the Aether 

Verhandlungen der Deutschen Physikalischen Gesellschaft, 20, 261 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 115; CP 7, 10 
1918 
Review of H. Weyl: Raum, Zeit, Materie
Review of Hermann Weyl, SpaceTimeMatter: Lectures on General Relativity 

Naturwissenschaften, 6, 373 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 116; CP 7, 13 
1918 
Dialog über Einwände gegen die Relativitätstheorie
Dialogue about Objections to the Theory of Relativity 

Naturwissenschaften, 6, 697–702 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 117; CP 7, 2 
1918 
Notiz zu Schrödingers Arbeit: Energiekomponenten des Gravitationsfeldes
Note on E. Schrödinger's Paper: The Energy Components of the Gravitational Field 

Physikalische Zeitschrift, 19, 115–116 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 118; CP 7, 3 
1918 
Bemerkung zu Schrödingers Notiz: Lösungssystem der allgemein kovarianten Gravitationsgleichungen
Comment on Schrödinger's Note: On a System of Solutions for the Generally Covariant Gravitational Field Equations 

Physikalische Zeitschrift, 19, 165–166 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 119; CP 7, 1 
1918 
Gravitationswellen

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1918 (part 1), 154–167 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . The first prediction of gravitational waveIn physics, gravitational waves are theoretical ripples in the curvature of spacetime which propagates as a wave, traveling outward from the source. Predicted to exist by Albert Einstein in 1916 on the basis of his theory of general relativity, gravitational waves theoretically transport energy as... s. Such gravitational radiation has been observed indirectly, for which the 1993 Nobel Prize in PhysicsThe Nobel Prize in Physics is awarded once a year by the Royal Swedish Academy of Sciences. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895 and awarded since 1901; the others are the Nobel Prize in Chemistry, Nobel Prize in Literature, Nobel Peace Prize, and... was awarded. 
Schilpp 120; CP 7, 5 
1918 
Kritisches zu einer von Hrn. de Sitter gegebenen Lösung der Gravitationsgleichungen
Critical Comment on a Solution of the Gravitational Field Equations Given by Mr. De Sitter 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1918 (part 1), 270–272 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 121; CP 7, 9 
1918 
Der Energiesatz in der allgemeinen Relativitätstheorie
The Law of Energy Conservation in the General Theory of Relativity 

Preussische Akademie der Wissenschaften, Sitzungsberichte, 1918 (part 1), 448–459 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 122 
1919 
Prüfung der allgemeinen Relativitätstheorie
A Test of the General Theory of Relativity 

Naturwissenschaften, 7, 776 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 123; CP 7, 17 
1919 
Spielen Gravitationsfelder im Aufbau der materiellen Elementarteilchen eine wesentliche Rolle?
Do Gravitational Fields Play an Essential Role in the Structure of the Elementary Particles of Matter? 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1919 (pt. 1), 349–356 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Suggests a modification of his field equations to allow for stable elementary particleIn particle physics, an elementary particle or fundamental particle is a particle not known to have substructure; that is, it is not known to be made up of smaller particles. If an elementary particle truly has no substructure, then it is one of the basic building blocks of the universe from which... s. 
Schilpp 124; CP 7, 18 
1919 
Bemerkungen über periodische Schwankungen der Mondlänge, welche bisher nach der Newtonschen Mechanik nicht erklärbar schienen
Comment about Periodical Fluctuations of Lunar Longitude, Which So Far Appeared to Be Inexplicable in Newtonian Mechanics 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1919 (pt. 1), 433–436 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 125 
1919 
Feldgleichungen der allgemeinen Relativitätstheorie vom Standpunkte des kosmologischen Problems und des Problems der Konstitution der Materie
Field Equations of the General Theory of Relativity in Respect to the Cosmological Problem and the Problem of the Constitution of Matter^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1919 (pt. 1), 463 (Title only) 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 126; CP 7, 26 
1919 November 28 
My theory 
Times, London, 13 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Republished in 1919 as "Time, space and gravitation" in Optician, the British optical journal, volume 58, pages 187–188. 
Schilpp 127; CP 7, 24 
1919 
Leo Arons als Physiker

Sozialistische Monatshefte, 52 (Jahrgang 25, pt. 2), 1055–1056 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 132 
1920 
Bemerkung zur Abhandlung von W. R. Hess: Theorie der Viscosität heterogener Systeme
Comment on the Paper by W. R. Hess: Contribution to the Theory of the Viscosity of Heterogeneous Systems 

Kolloidzeitschrift, 27, 137 
Intermolecular forceIntermolecular forces are forces of attraction or repulsion which act between neighboring particles: atoms, molecules or ions. They are weak compared to the intramolecular forces, the forces which keep a molecule together... s. 
Schilpp 133 
1920 
Inwiefern lässt sich die moderne Gravitationstheorie ohne die Relativität begründen?
To What Extent Can Modern Gravitational Theory Be Established without Relativity? 

Naturwissenschaften, 8, 1010–1011 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 134 
1920 
Trägheitsmoment des Wasserstoffmoleküls
Moment of Inertia of the Hydrogen Molecule^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1920, 65 
Intermolecular forceIntermolecular forces are forces of attraction or repulsion which act between neighboring particles: atoms, molecules or ions. They are weak compared to the intramolecular forces, the forces which keep a molecule together... s. Abstract of neverpublished paper. 
Schilpp 135; CP 7, 39 
1920 
Schallausbreitung in teilweise dissoziierten Gasen
Propagation of Sound in Partly Dissociated Gases 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1920, 380–385 
Intermolecular forceIntermolecular forces are forces of attraction or repulsion which act between neighboring particles: atoms, molecules or ions. They are weak compared to the intramolecular forces, the forces which keep a molecule together... s. 
Schilpp 136; CP 7, 45 
1920 August 27 
Meine Antwort über die antirelativitätstheoretische G.m.b.H.
My Response on the AntiRelativity Company 

Berliner Tageblatt und Handelszeitung, no. 402, 1–2 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 147; CP 7, 53 
1921 
A brief outline of the development of the theory of relativity 
Nature, 106, 782–784 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Translated by R. W. Lawson. 
Schilpp 148 
1921 
Geometrie und Erfahrung

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1921 (pt. 1), 123–130 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 149; CP 7, 54 
1921 
Eine naheliegende Ergänzung des Fundaments der allgemeinen Relativitätstheorie
On a Natural Addition to the Foundation of the General Theory of Relativity 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1921 (pt. 1), 261–264 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 150; CP 7, 68 
1921 
Ein den Elementarprozess der Lichtemission betreffendes Experiment
On an Experiment Concerning the Elementary Process of Light Emission 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, 1921 (pt. 2), 882–883 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 151 
1921 
Report of a lecture at King's College on the development and present position of relativity, with quotations 
Nation and Athenaeum, 29, 431–432 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . The German text is reproduced in Mein Weltbild (pp. 215–220); a full translation is found in The world as I see it. It was also reported in Nature (107, p. 504) and also in the Times (London) on June 14, p. 8. 
Schilpp 159 
1922 
Bemerkung zur Seletyschen Arbeit: Beiträge zum kosmologischen Problem
Observation of the Paper of Selety: Contributions to the Cosmological Problem^{§} 

Annalen der Physik (ser. 4), 69, 436–438, link 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 160 
1922 
Review of W. Pauli: Relativitätstheorie
Review of W. Pauli: Relativity Theory^{§} 

Naturwissenschaften, 10, 184–185 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 161 
1922 
Emil Warburg als Forscher
Emil Warburg as Researcher^{§} 

Naturwissenschaften, 10, 823–828 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 162 
1922 
Theorie der Lichtfortpflanzung in dispergierenden Medien
Theory of the Propagation of Light in Dispersive Media^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Phys.math. Klasse, 1922, 18–22 
Electromagnetism Electromagnetism is one of the four fundamental interactions in nature. The other three are the strong interaction, the weak interaction and gravitation... . 
Schilpp 163 
1922 
Bemerkung zu der Abhandlung von E. Trefftz: Statische Gravitationsfeld zweier Massenpunkte
Observation on the Work of E. Trefftz: Static Gravitational Field of Two Point Masses^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Phys.math. Klasse, 1922, 448–449 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 164 
1922 
Quantentheoretische Bemerkungen zum Experiment von Stern und Gerlach
Quantum Mechanical Observations on the Experiment of Stern and Gerlach^{§} 

Zeitschrift für Physik, 11, 31–34 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . Coauthored with Paul EhrenfestPaul Ehrenfest was an Austrian and Dutch physicist, who made major contributions to the field of statistical mechanics and its relations with quantum mechanics, including the theory of phase transition and the Ehrenfest theorem. Biography :Paul Ehrenfest was born and grew up in Vienna in a Jewish... . 
Schilpp 165 
1922 
Bemerkung zu der Arbeit von A. Friedmann: Über die Krümmung des Raumes
Observation on the Paper of A. Friedmann: On the Curvature of Space^{§} 

Zeitschrift für Physik, 11, 326 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Einstein withdrew this selfcriticism in 1922 in the same journal Zeitschrift für Physik, volume 16, p. 228. 
Schilpp 170 
1923 
Bemerkung zu der Notiz von W. Anderson: Neue Erklärung des kontinuierlichen Koronaspektrums
Observation on the Note of W. Anderson: New Explanation of the Continuous Spectrum of the Corona^{§} 

Astronomische Nachrichten, 219, 19 
Solar physics For the physics journal, see Solar Physics Solar physics is the study of our Sun. It is a branch of astrophysics that specializes in exploiting and explaining the detailed measurements that are possible only for our closest star... . 
Schilpp 171 
1923 
Experimentelle Bestimmung der Kanalweite von Filtern
Experimental Determination of the Pore Diameter in Filters^{§} 

Deutsche medizinische Wochenschrift, 49, 1012–1013 
Fluid mechanics Fluid mechanics is the study of fluids and the forces on them. Fluid mechanics can be divided into fluid statics, the study of fluids at rest; fluid kinematics, the study of fluids in motion; and fluid dynamics, the study of the effect of forces on fluid motion... . Coauthored with H. Mühsam. 
Schilpp 172 
1923 
Beweis der Nichtexistenz eines überall regulären zentrisch symmetrischen Feldes nach der Feldtheorie von Kaluza
Proof of the NonExistence of an EverywhereRegular Centrally Symmetric Field According to the Field Theory of Kaluza^{§} 

Jerusalem University, Scripta, 1 (no. 7), 1–5 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with J. Grommer; also given in Hebrew. 
Schilpp 173 
1923 
Theory of the affine field 
Nature, 112, 448–449 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Translated by RW Lawson, but does not correspond to publication #175. Relatively nonmathematical. 
Schilpp 174 
1923 
Zur allgemeinen Relativitätstheorie
On the General Theory of Relativity^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1923, 32–38, 76–77 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 175 
1923 
Zur affinen Feldtheorie
On Affine Field Theory^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1923, 137–140 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 176 
1923 
Bietet die Feldtheorie Möglichkeiten für die Lösung des Quantenproblems?
Does Field Theory Offer Possibilities for Solving the Quantum Problem?^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1923, 359–364 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 177 
1923 
Théorie de relativité

Société française de philosophie, Bulletin, 22, 97–98, 101, 107, 111–112 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Quoted in full in Nature, 112, p. 253. 
Schilpp 178 
1923 
Quantentheorie des Strahlungsgleichgewichts
Quantum Theory of the Equilibrium of Radiation^{§} 

Zeitschrift für Physik, 19, 301–306 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Coauthored with Paul EhrenfestPaul Ehrenfest was an Austrian and Dutch physicist, who made major contributions to the field of statistical mechanics and its relations with quantum mechanics, including the theory of phase transition and the Ehrenfest theorem. Biography :Paul Ehrenfest was born and grew up in Vienna in a Jewish... . 
Schilpp 181 
1924 
Antwort auf eine Bemerkung von W. Anderson
Response to an Observation of W. Anderson^{§} 

Astronomische Nachrichten, 221, 329–330 

Schilpp 182 
1924 April 20 
Komptonsche Experiment
The Compton Experiment^{§} 

Berliner Tageblatt, 1. Beiblatt 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Experiment showing that photons could carry momentum; for many physicists, this experiment was conclusive proof that photons were particles. 
Schilpp 184 
1924 
Zum hundertjährigen Gedenkag von Lord Kelvins Geburt
On the 100th Anniversary of Lord Kelvin's Birth^{§} 

Naturwissenschaften, 12, 601–602 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 185 
1924 
Quantentheorie des einatomigen idealen Gases
Quantum Theory of the Monatomic Ideal Gas^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1924, 261–267 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s and statistical mechanicsStatistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . First of two seminal papers (see reference #194), in which Einstein creates the theory of identical particlesIdentical particles, or indistinguishable particles, are particles that cannot be distinguished from one another, even in principle. Species of identical particles include elementary particles such as electrons, and, with some clauses, composite particles such as atoms and molecules.There are two... in quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . In 1924, Satyendra Nath BoseSatyendra Nath Bose FRS was an Indian mathematician and physicist noted for his collaboration with Albert Einstein in developing a theory regarding the gaslike qualities of electromagnetic radiation. He is best known for his work on quantum mechanics in the early 1920s, providing the foundation... derived Planck's law of blackbody radiation from a modification of coarsegrained counting of phase spaceIn mathematics and physics, a phase space, introduced by Willard Gibbs in 1901, is a space in which all possible states of a system are represented, with each possible state of the system corresponding to one unique point in the phase space... . Einstein shows that this modification is equivalent to assuming that photons are rigorously identical, leading to the concept of coherent stateIn quantum mechanics a coherent state is a specific kind of quantum state of the quantum harmonic oscillator whose dynamics most closely resembles the oscillating behaviour of a classical harmonic oscillator... s. Einstein also extends Bose's formalism to material particles (bosonIn particle physics, bosons are subatomic particles that obey Bose–Einstein statistics. Several bosons can occupy the same quantum state. The word boson derives from the name of Satyendra Nath Bose.... s), predicting that they condenseA Bose–Einstein condensate is a state of matter of a dilute gas of weakly interacting bosons confined in an external potential and cooled to temperatures very near absolute zero . Under such conditions, a large fraction of the bosons occupy the lowest quantum state of the external potential, at... at sufficiently low temperatures, as verified experimentally. 
Schilpp 186 
1924 
Über den Äther

Verhandlungen der Schweizerischen naturforschenden Gesellschaft, 105 (pt. 2), 85–93 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Historical overview. 
Schilpp 187 
1924 
Theorie der Radiometerkräfte
Theory of Radiometer Forces^{§} 

Zeitschrift für Physik, 27, 1–6 
Statistical mechanics Statistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Treatment of the physics of radiometerA radiometer is a device for measuring the radiant flux of electromagnetic radiation. Generally, the term radiometer denotes an infrared radiation detector, yet it also includes detectors operating on any electromagnetic wavelength.... s, a science toy. 
Schilpp 188 
1924 
[Note appended to a paper by BoseSatyendra Nath Bose FRS was an Indian mathematician and physicist noted for his collaboration with Albert Einstein in developing a theory regarding the gaslike qualities of electromagnetic radiation. He is best known for his work on quantum mechanics in the early 1920s, providing the foundation... entitled "Wärmegleichgewicht im Strahlungsfeld bei Anwesenheit von Materie"]
Thermal Equilibrium in the Radiation Field in the Presence of Matter 

Zeitschrift für Physik, 27, 392–392 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 193 
1925 
Elektron und allgemeine Reltivitätstheorie
The Electron and The General Theory of Relativity^{§} 

Physica, 5, 330–334 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 194 
1925 
Quantentheorie des einatomigen idealen Gases. 2. Abhandlung
Quantum Theory of the Monatomic Ideal Gas, Part II^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften (Berlin), Physikalischmathematische Klasse, 1925, 3–14 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s and statistical mechanicsStatistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . Second of two seminal articles on identical particlesIdentical particles, or indistinguishable particles, are particles that cannot be distinguished from one another, even in principle. Species of identical particles include elementary particles such as electrons, and, with some clauses, composite particles such as atoms and molecules.There are two... , bosonIn particle physics, bosons are subatomic particles that obey Bose–Einstein statistics. Several bosons can occupy the same quantum state. The word boson derives from the name of Satyendra Nath Bose.... s and BoseEinstein condensation; see reference #185 for the first. 
Schilpp 195 
1925 
Quantentheorie des idealen Gases
Quantum theory of Ideal Gases^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften (Berlin), Physikalischmathematische Klasse, 1925, 18–25 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s and statistical mechanicsStatistical mechanics or statistical thermodynamicsThe terms statistical mechanics and statistical thermodynamics are used interchangeably... . 
Schilpp 196 
1925 
Einheitliche Feldtheorie von Gravitation und Elektrizität
Unified Field Theory of Gravity and Electricity^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften (Berlin), Physikalischmathematische Klasse, 1925, 414–419 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 197 
1925 
Bemerkung zu P. Jordans Abhandlung: Theorie der Quantenstrahlung
Observation on P. Jordan's Work: Theory of Quantum Radiation^{§} 

Zeitschrift für Physik, 31, 784–785 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 199 
1926 
W. H. Julius, 1860–1925 
Astrophysical Journal, 63, 196–198 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 200 
1926 
Ursache der Mäanderbildung der Flussläufe und des sogenannten Baerschen Gesetzes
Origin of RiverMeanders and the SoCalled Law of Baer^{§} 

Naturwissenschaften, 14, 223–224 
Earth scienceEarth science is an allembracing term for the sciences related to the planet Earth. It is arguably a special case in planetary science, the Earth being the only known lifebearing planet. There are both reductionist and holistic approaches to Earth sciences... . The physics of meandering rivers. 
Schilpp 201 
1926 
Vorschlag zu einem die Natur des elementaren Strahlungsemissionsprozesses betreffenden Experiment
Suggestion for an Experiment Concerning the Nature of the Elementary Process of Emitting Light^{§} 

Naturwissenschaften, 14, 300–301 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 202 
1926 
Interferenzeigenschaften des durch Kanalstrahlen emittierten Lichtes
Interference Properties of Light Emitted by Canal Rays^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1926, 334–340 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. Supposedly verified experimentally by RuppEmil Rupp was a German physicist, regarded by many as a respectable and important experimentalist in the late 1920s. He was later forced to recant all five of the papers he had published in 1935, admitting that his findings and experiments had been fictions... in the paper following it in the journal (pp. 341–351); later, it came out that Rupp was a fraud. 
Schilpp 203 
1926 
Geometría no euclídea y fisica
NonEuclidean Geometry and Physics^{§} 

Revista matemática Hispanoamericana (ser. 2), 1, 72–76 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 205 
1927 
Einfluss der Erdbewegung auf die Lichtgeschwindigkeit relativ zur Erde
Influence of the Earth's Motion on the Speed of Light Relative to Earth^{§} 

Forschungen und Fortschritte, 3, 36–37 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . 
Schilpp 206 
1927 
Formale Beziehung des Riemannschen Krümmungstensors zu den Feldgleichungen der Gravitation
Formal Relationship of the Riemannian Curvature Tensor to the Field Equations of Gravity^{§} 

Mathematische Annalen, 97, 99–103 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 207 
1927 
Isaac Newton 
Manchester Guardian Weekly, 16, 234–235 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Reprinted in the Manchester Guardian (March 19, 1927); Observatory, 50, 146–153; Smithsonian Institution, Report for 1927, 201–207. 
Schilpp 208 
1927 
Newtons Mechanik und ihr Einfluss auf die Gestaltung der theoretischen Physik
Newton's Mechanics and its Influence on the Formation of Theoretical Physics^{§} 

Naturwissenschaften, 15, 273–276 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 209 
1927 
Zu Newtons 200. Todestage
On the 200th Anniversary of Newton's Death^{§} 

Nord und Süd, Jahrg. 50, 36–40 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 210 
1927 
[Letter to the Royal Society on the occasion of the Newton bicentennary] 
Nature, 119, 467 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Also published in Science, 65, 347–348. 
Schilpp 211 
1927 
Establishment of an international bureau of meteorology 
Science, 65, 415–417 
MeteorologyMeteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries... . 
Schilpp 212 
1927 
Kaluzas Theorie des Zusammenhanges von Gravitation und Elektrizität
Kaluza's Theory of the Connection between Gravity and Electricity^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1927, 23–30 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 213 
1927 
Allgemeine Relativitätstheorie und Bewegungsgesetz
General Theory of Relativity and the Law of Motion^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1927, 2–13, 235–245 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . The first part (pp. 2–13) was coauthored with J. Grommer. 
Schilpp 214 
1927 
Theoretisches und Experimentelles zur Frage der Lichtentstehung
Theoretical and Experimental [Aspects] to the Question of the Generation of Light^{§} 

Zeitschrift für angewandte Chemie, 40, 546 
PhotonIn physics, a photon is an elementary particle, the quantum of the electromagnetic interaction and the basic unit of light and all other forms of electromagnetic radiation. It is also the force carrier for the electromagnetic force... s. 
Schilpp 216 
1928 
H. A. Lorentz 
Mathematischnaturwissenschaftliche Blätter, 22, 24–25 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Abstract of an address given at a memorial service at Leiden University. Reprinted in Mein Weltbild (The world as I see it), p. 25. 
Schilpp 217 
1928 
Riemanngeometrie mit Aufrechterhaltung des Begriffes des FernParallelismus
Riemannian Geometry with Preservation of the Concept of Distant Parallelism^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1928, 217–221 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 218 
1928 
Neue Möglichkeit für eine einheitliche Feldtheorie von Gravitation und Elektrizität
New Possibility for a Unified Field Theory of Gravity and Electricity^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1928, 224–227 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 219 
1928 
À propos de "La déduction relativiste" de M. E. Meyerson
Concerning "The Relativistic Deeduction" by M. E. Meyerson^{§} 

Revue philosophique de la France, 105, 161–166 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 222 
1929 
Ansprache an Prof. Planck [bei Entgegennahme der Planckmedaille]
Address to Prof. Planck [upon receiving the Planck medal]^{§} 

Forschungen und Fortschritte, 5, 248–249 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 223 
1929 
[Quotation from an interview with (London) Daily Chronicle (January 26, 1929) on the unitary field theory, in advance of publication #226] 
Nature, 123, 175 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 224 
1929 
[Note appended to a reprinting of Arago's Memorial address on Thomas Young before the French Academy] 
Naturwissenschaften, 17, 363 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 225 
1929 February 4 
The new field theory 
Times (London) 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Translated by L. L. Whyte. Reprinted in the Observatory, 52, 82–87, 114–118 (1930). 
Schilpp 226 
1929 
Einheitliche Feldtheorie

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1929, 2–7 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 227 
1929 
Einheitliche Feldtheorie und Hamiltonsches Prinzip
Unified Field Theory and Hamilton's Principle^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1929, 156–159 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 228 
1929 
Sur la théorie synthéthique des champs
On the Unified Theory of Fields^{§} 

Revue générale de l'électricité, 25, 35–39 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with Théophile de DonderThéophile Ernest de Donder was a Belgian mathematician and physicist famous for his 1923 work in developing correlations between the Newtonian concept of chemical affinity and the Gibbsian concept of free energy.Education:... . 
Schilpp 229 
1929 
Appreciation of Simon Newcomb 
Science, 69, 249 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Translation of a letter to Newcomb's daughter dated July 15, 1926. 
Schilpp 230 
1929 
Sesión especial de la Academia (16 abril 1925)
Special Session of the Scientific Society of Argentina^{§} 

Sociedad cientifica Argentina, Anales, 107, 337–347 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Einstein's discussions with RG Loyarte on massenergy equivalence and with H Damianovich on the relevance of relativity for a proposed "chemical field". 
Schilpp 232 
1930 November 9 
Über Kepler

Frankfurter Zeitung, p. 16, col. 3–4 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . The text is reprinted in Mein Weltbild and its English translation The world as I see it (in German and English, respectively). 
Schilpp 233 
1930 
Raum, Feld und Ätherproblem in der Physik
The Problems of Space, Fields and Aether in Physics^{§} 

World power conference, 2nd, Berlin, 1930. Transactions, 19, 1–5 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . A widely reported address, e.g., in Dinglers polytechnisches journal, 345, p. 122. 
Schilpp 234 
1930 
Raum, Äther und Feld in der Physik
Space, Aether and Field in Physics^{§} 

Forum Philosophicum, 1, 173–180 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . An English translation by ES Brightman was provided in the same volume, pp. 180–184. Similar to #233, but different from the article "Das Raum, Äther, und Feldproblem der Physik" reprinted in Mein Weltbild (The world as I see it), pp. 229–248. 
Schilpp 235 
1930 
Théorie unitaire du champ physique
Unified theory of the physical field^{§} 

Annales de l'Institut H. Poincaré, 1, 1–24 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 236 
1930 
Auf die RiemannMetrik und den FernParallelismus gegründete einheitliche Feldtheorie
A Unified Field Theory Based on the Riemannian Metric and Distant Parallelism^{§} 

Mathematische Annalen, 102, 685–697 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 237 
1930 
Das RaumZeit Problem
The SpaceTime Problem^{§} 

Die Koralle, 5, 486–488 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 238 
1930 
Review of S. Weinberg: Erkenntnistheorie
Review of S. Weinberg: Theory of Knowledge^{§} 

Naturwissenschaften, 18, 536 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 239 
1930 
Kompatibilität der Feldgleichungen in der einheitlichen Feldtheorie
Consistency of the Field Equations in the Unified Field Theory^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1930, 18–23 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 240 
1930 
Zwei strenge statische Lösungen der Feldgleichungen der einheitlichen Feldtheorie
Two Strictly Static Solutions of the Field Equations of the Unified Field Theory^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1930, 110–120 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with W. Mayer. 
Schilpp 241 
1930 
Theorie der Räume mit Riemannmetrik und Fernparallelismus
Theory of Spaces with a Riemannian Metric and Distant Parallelism^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1930, 401–402 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 242 
1930 
Address at University of Nottingham 
Science, 71, 608–610 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . A survey of relativity theory (special and general) and of field theory in general. A precis of the talk was published in Nature, 125, pp. 897–898, under the title "Concept of space". 
Schilpp 243 
1930 
Über den gegenwärtigen Stand der allgemeinen Relativitätstheorie
On the Present Status of the General Theory of Relativity^{§} 

Yale University Library, Gazette, 6, 3–6 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . An English translation by Prof. Leigh PageLeigh Page developed the theory of conformal invariance originally suggested by Harry Bateman... of Yale University was provided on pages 7–10. Interestingly, this was neither a scientific talk nor a typical scientific paper; rather, a Yale graduate convinced Einstein to write the summary by longhand; the manuscript is still housed at Yale. 
Schilpp 247 
1931 
Theory of Relativity: Its Formal Content and Its Present Problems 
Nature, 127, 765, 790, 826–827 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Rhodes lectures delivered at Oxford University in May 1931. 
Schilpp 248 
1931 
Knowledge of past and future in quantum mechanics 
Physical Review (ser. 2), 37, 780–781, link 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . Coauthored with R. C. Tolman and B. Podolosky. 
Schilpp 249 
1931 
Zum kosmologischen Problem der allgemeinen Relativitätstheorie
On the Cosmological Problem of the General Theory of Relativity^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1931, 235–237 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Proposed a "cosmological constantIn physical cosmology, the cosmological constant was proposed by Albert Einstein as a modification of his original theory of general relativity to achieve a stationary universe... ." 
Schilpp 250 
1931 
Systematische Untersuchung über kompatible Feldgleichungen welche in einem Riemannschen Raume mit FernParallelismus gesetzt werden können
Systematic Investigation of Consistent Field Equations That Can Be Posited in a Riemannian Space with Distant Parallelism^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1931, 257–265 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with W. Mayer. 
Schilpp 251 
1931 
Einheitliche Feldtheorie von Gravitation und Elektrizität
Unified Field Theory of Gravity and Electricity^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1931, 541–557 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with W. Mayer. 
Schilpp 252 
1931 
Thomas Alva Edison, 1847–1931 
Science, 74, 404–405 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 253 
1931 
Gravitational and electrical fields [Translation of a preliminary report for the Josiah Macy, Jr. foundation] 
Science, 74, 438–439 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 254 
1931 
[Reply to congratulatory addresses at a dinner given by the California Institute of Technology on January 15, 1931] 
Science, 73, 379 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 255 
1931 
Gedenkworte auf Albert A. Michelson
In Remembrance of Albert A. Michelson^{§} 

Zeitschrift für angewandte Chemie, 44, 658 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 258 
1932 
On the relation between the expansion and the mean density of the universe 
Proceedings of the National Academy of Sciences, 18, 213–214 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with Willem de SitterWillem de Sitter was a Dutch mathematician, physicist and astronomer.Life and work:Born in Sneek, De Sitter studied mathematics at the University of Groningen and then joined the Groningen astronomical laboratory. He worked at the Cape Observatory in South Africa... . 
Schilpp 259 
1932 
Zu Dr. Berliners siebzigstem Geburtstag
On Dr. Berliner's 70th Birthday^{§} 

Naturwissenschaften, 20, 913 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Reprinted in Mein Weltbild (The world as I see it), pp. 29–32. 
Schilpp 260 
1932 
Gegenwärtiger Stand der Relativitätstheorie
Present Status of Relativity Theory^{§} 

Die Quelle (now called Paedogogischer Führer), 82, 440–442 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 261 
1932 
Einheitliche Feldtheorie von Gravitation und Elektrizität, 2. Abhandlung
Unified Field Theory of Gravity and Electricity, Part II^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1932, 130–137 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with W. Mayer. 
Schilpp 262 
1932 
SemiVektoren und Spinoren
SemiVectors and Spinors^{§} 

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Physikalischmathematische Klasse, 1932, 522–550 
Mathematics Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity... . Coauthored with W. Mayer. 
Schilpp 263 
1932 
Unbestimmtheitsrelation
Uncertainty Relations^{§} 

Zeitschrift für angewandte Chemie, 45, 23 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . 
Schilpp 267 
1933 
Dirac Gleichungen für SemiVektoren
Dirac Equations for SemiVectors^{§} 

Akademie van wetenschappen (Amsterdam), Proceedings, 36 (pt. 2), 497–? 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . Coauthored with W. Mayer. 
Schilpp 268 
1933 
Spaltung der natürlichsten Feldgleichungen für SemiVektoren in SpinorGleichungen vom Diracschen Typus
Division of the Most Natural FieldEquations for SemiVectors in Spinor Equations of the Dirac Type^{§} 

Akademie van wetenschappen (Amsterdam), Proceedings, 36 (pt. 2), 615–619 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . Coauthored with W. Mayer. 
Schilpp 270 
1934 
Darstellung der SemiVektoren als gewöhnliche Vektoren von besonderem Differentiations Charakter
Representation of SemiVectors as Ordinary Vectors with Unusual Differentiation Properties^{§} 

Annals of mathematics (ser. 2), 35, 104–110 
Mathematics Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity... . Coauthored with W. Mayer. 
Schilpp 271 
1934 
Review of R. Tolman: Relativity, thermodynamics and cosmology 
Science, 80, 358 
SpecialSpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... and general relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 272 
1935 
Elementary derivation of the equivalence of mass and energy 
Bulletin of the American Mathematical Society, 41, 223–230, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . 
Schilpp 273 
1935 
Can quantummechanical description of physical reality be considered complete? 
Physical Review (ser. 2), 47, 777–780, link 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . Coauthored with B. Podolsky and N. Rosen. 
Schilpp 274 
1935 
The particle problem in the general theory of relativity 
Physical Review (ser. 2), 48, 73–77 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with N. Rosen. 
Schilpp 275 
1936 
Physik und Realität

Franklin Institute, Journal, 221, 313–347 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . An English translation (by J Picard) is provided on pages 349–382. Also reprinted in Zeitschrift für freie deutsche Forschung, 1, no. 1, pp. 5–19 and no. 2, pp. 1–14 (1938). 
Schilpp 276 
1936 
Twobody problem in general relativity theory 
Physical Review (ser. 2), 49, 404–405 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with N. Rosen. 
Schilpp 277 
1936 
Lenslike action of a star by deviation of light in the gravitational field 
Science, 84, 506–507 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 278 
1937 
On gravitational waves 
Journal of the Franklin Institute, 223, 43–54 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with N. Rosen. This important paper established that gravitational waves are possible despite the nonlinear nature of the Einstein field equationsThe Einstein field equations or Einstein's equations are a set of ten equations in Albert Einstein's general theory of relativity which describe the fundamental interaction of gravitation as a result of spacetime being curved by matter and energy... . Interestingly, Einstein and Rosen originally reached the opposite conclusion! 
Schilpp 283 
1938 
Gravitational equations and the problems of motion 
Annals of Mathematics (ser. 2), 39, 65–100 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with L. Infeld and B. Hoffmann. 
Schilpp 284 
1938 
Generalization of Kaluza's theory of electricity 
Annals of mathematics (ser. 2), 39, 683–701 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with P. BergmannPeter Gabriel Bergmann was a GermanAmerican physicist best known for his work with Albert Einstein on a unified field theory encompassing all physical interactions... . 
Schilpp 285 
1939 
Stationary system with spherical symmetry consisting of many gravitating masses 
Annals of Mathematics (ser. 2), 40, 922–936 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 286 
1940 
Gravitational equations and the problems of motion. II 
Annals of Mathematics (ser. 2), 41, 455–464 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with L. Infeld. 
Schilpp 287 
1940 
Considerations concerning the fundamentals of theoretical physics 
Science, 91, 487–492 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Partly reprinted in Nature, 145, 920–924. 
Schilpp 290 
1941 
Demonstration of the nonexistence of gravitational fields with a nonvanishing total mass free of singularities 
Tucumán universidad nac., Revista (ser. A), 2, 11–16 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . 
Schilpp 292 
1942 
The work and personality of Walter Nernst 
Scientific Monthly, 54, 195–196 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 293 
1943 
Nonexistence of regular stationary solutions of relativistic field equations 
Annals of Mathematics (ser. 2), 44, 131–137 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with Wolfgang PauliWolfgang Ernst Pauli was an Austrian theoretical physicist and one of the pioneers of quantum physics. In 1945, after being nominated by Albert Einstein, he received the Nobel Prize in Physics for his "decisive contribution through his discovery of a new law of Nature, the exclusion principle or... . 
Schilpp 295 
1944 
Bivector fields, I 
Annals of mathematics (ser. 2), 45, 1–14 
Mathematics Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity... . Coauthored with V. Bargmann. 
Schilpp 296 
1944 
Bivector fields, II 
Annals of mathematics (ser. 2)296, 45, 15–23 
Mathematics Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity... . 
Schilpp 298 
1945 
On the cosmological problem 
American Scholar, 14, 137–156, 269 (correction) 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . A preprinting of the appendix to publication #297. 
Schilpp 299 
1945 
Generalization of the relativistic theory of gravitation 
Annals of mathematics (ser. 2), 46, 578–584 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 300 
1945 
Influence of the expansion of space on the gravitation fields surrounding the individual stars 
Reviews of modern physics, 17, 120–124 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with E. G. Straus. Corrections and additions, ibid., 18, 148–149 (1946). 
Schilpp 301 
1946 
Generalization of the relativistic theory of gravitation, II 
Annals of mathematics (ser. 2), 47, 731–741 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with E. G. Straus. 
Schilpp 302 
1946 
Elementary derivation of the equivalence of mass and energy 
Technion Journal, 5, 16–17, link 
Special relativitySpecial relativity is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein in the paper "On the Electrodynamics of Moving Bodies".It generalizes Galileo's... . Novel, simplified derivation in the Yearbook of American Society for Advancement of the Hebrew Institute of Technology in Haifa. Also published in Hebrew in 1947, in the Scientific Publications of Hebrew Technical College (Institute of Technology) in Haifa. 
Schilpp 307 
1948 
Quantenmechanik und Wirklichkeit
Quantum mechanics and reality^{§} 

Dialectica, 2, 320–324 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . 
Schilpp 308 
1948 
Generalized theory of gravitation 
Reviews of modern physics, 20, 35–39 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 309 
1949 
Motion of particles in general relativity theory 
Canadian Journal of Mathematics, 1, 209–241 
General relativityGeneral relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics... . Coauthored with L. Infeld. 
Schilpp 310 
1949 
Dem Gedächtnis Max Plancks
In memory of Max Planck^{§} 

Angewandte Chimie, 61, U114 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . 
Schilpp 311 
1950 
The Bianchi Identities in the Generalized Theory of Gravitation 
Canadian Journal of Mathematics, 2, 120–128 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 313 
1950 
On the General Theory of Gravitation 
Scientific American, 182, 13–17 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 314 
1951 
The Advent of the Quantum Theory 
Science, 113, 82–84 
Quantum mechanicsQuantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particlelike and wavelike behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic... . 
Schilpp 316 
1953 
A Comment on a Criticism of Unified Field Theory 
Physical Review, 89, 321 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . 
Schilpp 317 
1954 
Algebraic Properties of the Field in the Relativistic Theory of the Asymmetric Field 
Annals of Mathematics, 59, 230–244 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Coauthored with B. Kaufman. 
Schilpp 318 
1955 
An Interview with Einstein 
Scientific American, 193, 69–73 
History of physicsAs forms of science historically developed out of philosophy, physics was originally referred to as natural philosophy, a term describing a field of study concerned with "the workings of nature".Early history:... . Coauthored with I. B. Cohen. 
Schilpp 319 
1955 
A New Form of the General Relativistic Field Equations 
Annals of Mathematics, 62, 128–138 
Classical unified field theories Since the 19th century, some physicists have attempted to develop a single theoretical framework that can account for the fundamental forces of nature – a unified field theory. Classical unified field theories are attempts to create a unified field theory based on classical physics... . Simplified derivation using an ancillary field instead of the usual affine connectionIn the branch of mathematics called differential geometry, an affine connection is a geometrical object on a smooth manifold which connects nearby tangent spaces, and so permits tangent vector fields to be differentiated as if they were functions on the manifold with values in a fixed vector space... . Coauthored with B. Kaufman. 