Deutsche Physik
Encyclopedia
Deutsche Physik or Aryan Physics was a nationalist movement in the German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 physics
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

 community in the early 1930s against the work of Albert Einstein
Albert Einstein
Albert Einstein was a German-born theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics and one of the most prolific intellects in human history...

, labeled "Jewish Physics" . The term was taken from the title of a 4-volume physics textbook by Philipp Lenard
Philipp Lenard
Philipp Eduard Anton von Lenard , known in Hungarian as Lénárd Fülöp Eduárd Antal, was a Hungarian - German physicist and the winner of the Nobel Prize for Physics in 1905 for his research on cathode rays and the discovery of many of their properties...

 in the 1930s.

Origins

This movement began as an extension of a German nationalistic
Nationalism
Nationalism is a political ideology that involves a strong identification of a group of individuals with a political entity defined in national terms, i.e. a nation. In the 'modernist' image of the nation, it is nationalism that creates national identity. There are various definitions for what...

 movement in the physics community which went back as far as World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

. During fighting between the German army and Belgian resistance fighters after the German invasion in Belgium, the library of the Katholieke Universiteit Leuven
Katholieke Universiteit Leuven
The Katholieke Universiteit Leuven is a Dutch-speaking university in Flanders, Belgium.It is located at the centre of the historic town of Leuven, and is a prominent part of the city, home to the university since 1425...

caught fire when German troops looted and set fire to the town. The incident of the burning of the library led to a protest note by British scientists, which was signed also by eight distinguished British scientists, namely William Bragg
William Henry Bragg
Sir William Henry Bragg OM, KBE, PRS was a British physicist, chemist, mathematician and active sportsman who uniquely shared a Nobel Prize with his son William Lawrence Bragg - the 1915 Nobel Prize in Physics...

, William Crookes
William Crookes
Sir William Crookes, OM, FRS was a British chemist and physicist who attended the Royal College of Chemistry, London, and worked on spectroscopy...

, Alexander Fleming
Alexander Fleming
Sir Alexander Fleming was a Scottish biologist and pharmacologist. He wrote many articles on bacteriology, immunology, and chemotherapy...

, Horace Lamb
Horace Lamb
Sir Horace Lamb FRS was a British applied mathematician and author of several influential texts on classical physics, among them Hydrodynamics and Dynamical Theory of Sound...

, Oliver Lodge, William Ramsay
William Ramsay
Sir William Ramsay was a Scottish chemist who discovered the noble gases and received the Nobel Prize in Chemistry in 1904 "in recognition of his services in the discovery of the inert gaseous elements in air" .-Early years:Ramsay was born in Glasgow on 2...

, Baron Rayleigh
Baron Rayleigh
Baron Rayleigh, of Terling Place in the County of Essex, is a title in the Peerage of the United Kingdom. It was created in 1821 for Lady Charlotte Strutt, wife of Colonel Joseph Strutt, Member of Parliament for Maldon and a member of an Essex family that had made its fortune in the milling business...

 and J.J. Thomson, and in which it was assumed that the war propaganda mentioned corresponded to real behavior of German soldiers. In the year of 1915 this led to a counter-reaction in the form of an "appeal" formulated by Wilhelm Wien
Wilhelm Wien
Wilhelm Carl Werner Otto Fritz Franz Wien was a German physicist who, in 1893, used theories about heat and electromagnetism to deduce Wien's displacement law, which calculates the emission of a blackbody at any temperature from the emission at any one reference temperature.He also formulated an...

 and addressed to German physicists and scientific publishers, which was signed by sixteen German physicists, including Arnold Sommerfeld
Arnold Sommerfeld
Arnold Johannes Wilhelm Sommerfeld was a German theoretical physicist who pioneered developments in atomic and quantum physics, and also educated and groomed a large number of students for the new era of theoretical physics...

 and Johannes Stark
Johannes Stark
Johannes Stark was a German physicist, and Physics Nobel Prize laureate who was closely involved with the Deutsche Physik movement under the Nazi regime.-Early years:...

. They claimed that German character had been misinterpreted and that attempts made over many years to reach an understanding between the two countries had obviously failed, so that conclusions had now to be drawn, in regard to the use of the English language by German scientific authors, editors of books and translators. A number of German physicists
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

, including Max Planck
Max Planck
Max 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...

 and the especially passionate Philipp Lenard
Philipp Lenard
Philipp Eduard Anton von Lenard , known in Hungarian as Lénárd Fülöp Eduárd Antal, was a Hungarian - German physicist and the winner of the Nobel Prize for Physics in 1905 for his research on cathode rays and the discovery of many of their properties...

, a scientific rival of J.J. Thomson, had then signed further "declarations"
Manifesto of the Ninety-Three
The "Manifesto of the Ninety-Three" is the name commonly given to a 1914 proclamation endorsed by 93 prominent German scientists, scholars and artists, declaring their unequivocal support of German military actions in the early period of World War I. These actions were elsewhere called the Rape of...

, so that gradually a "war of the minds" broke out. On the German side it was suggested to avoid an unnecessary use of English language in scientific texts (concerning, e.g., the renaming of German-discovered phenomena with perceived English-derived names, such as "X-ray
X-ray
X-radiation is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma...

" instead of "Röntgen ray"). It was stressed, however, that this measure should not be misunderstood as a rejection of British scientific thought, ideas and stimulations.

After the war, the affronts of the Treaty of Versailles
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

 kept some of these nationalistic feelings running high, especially in Lenard, who in a small pamphlet had already complained at the beginning of the war about England. When on January 26, 1920, an attempt had been made by the young soldier Oltwig von Hirschfelde to assassinate Matthias Erzberger
Matthias Erzberger
Matthias Erzberger was a German politician. Prominent in the Centre Party, he spoke out against the First World War from 1917 and eventually signed the Armistice with Germany for the German Empire...

, the German Chancellor, Lenard had sent a telegram of congratulation to Hirschfelde. When on June 24, 1922, the politician Walther Rathenau
Walther Rathenau
Walther Rathenau was a German Jewish industrialist, politician, writer, and statesman who served as Foreign Minister of Germany during the Weimar Republic...

 had been assassinated and the government had ordered to fly the flags at half mast at the day of his funeral, Lenard ignored the order at his institute in Heidelberg. Socialistic students organized a demonstration against Lenard, who at the occasion was taken into protective custody by the Jewish prosecutor of state Hugo Marx. This was not a sentiment unique to physics or physicists— this blend of nationalism and perceived affront from foreign and internal forces formed a key part of the popularity of the newly forming National Socialist
Nazism
Nazism, the common short form name of National Socialism was the ideology and practice of the Nazi Party and of Nazi Germany...

 Party (Nazis) in the late 1920s.

During the early years of the twentieth century, Albert Einstein
Albert Einstein
Albert Einstein was a German-born theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics and one of the most prolific intellects in human history...

's Theory of Relativity
Theory of relativity
The theory of relativity, or simply relativity, encompasses two theories of Albert Einstein: special relativity and general relativity. However, the word relativity is sometimes used in reference to Galilean invariance....

 was met with much bitter controversy within the physics communities of the world. There were many physicists, especially the "old guard," who were suspicious of the intuitive meanings of Einstein's theories. The leading theoretician of the Deutsche Physik type of movement was Rudolf Tomaschek
Rudolf Tomaschek
Rudolf Karl Anton Tomaschek was a German experimental physicist. His scientific efforts included work on phosphorescence, fluorescence, and gravitation. Tomaschek was a supporter of deutsche Physik, which resulted in his suspension from his university posts after World War II...

 who had re-edited the famous physics textbook Grimsehl's Lehrbuch der Physik. In that book, which consists of several volumes, the Lorentz transformation
Lorentz transformation
In physics, the Lorentz transformation or Lorentz-Fitzgerald 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...

 was accepted as well as quantum theory
Old quantum theory
The old quantum theory was a collection of results from the years 1900–1925 which predate modern quantum mechanics. The theory was never complete or self-consistent, but was a collection of heuristic prescriptions which are now understood to be the first quantum corrections to classical mechanics...

. However, Einstein's interpretation of the Lorentz transformation was not mentioned, and also Einstein's name was completely ignored. Many of these classical physicists
Classical physics
What "classical physics" refers to depends on the context. When discussing special relativity, it refers to the Newtonian physics which preceded relativity, i.e. the branches of physics based on principles developed before the rise of relativity and quantum mechanics...

 resented Einstein's dismissal of the notion of a luminiferous aether
Luminiferous aether
In the late 19th century, luminiferous aether or ether, meaning light-bearing aether, was the term used to describe a medium for the propagation of light....

, which had been a mainstay of their work for the majority of their productive lives. They were not convinced by the empirical evidences
Tests of general relativity
At its introduction in 1915, the general theory of relativity did not have a solid empirical foundation. It was known that it correctly accounted for the "anomalous" precession of the perihelion of Mercury and on philosophical grounds it was considered satisfying that it was able to unify Newton's...

 for Relativity: the measurements of the perihelion of Mercury
Mercury (planet)
Mercury 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...

 and the null result of the Michelson-Morley experiment
Michelson-Morley experiment
The Michelson–Morley experiment was performed in 1887 by Albert Michelson and Edward Morley at what is now Case Western Reserve University in Cleveland, Ohio. Its results are generally considered to be the first strong evidence against the theory of a luminiferous ether and in favor of special...

 might be explained in other ways, they thought, and the results of the Eddington eclipse
Eclipse
An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer...

 experiment (the first observed instance of gravitational lensing, a key prediction of Einstein's) were experimentally problematic enough to be dismissed as meaningless by the more devoted doubters. Many of these doubters were very distinguished experimental physicists—Lenard was himself a Nobel
Nobel Prize
The Nobel Prizes are annual international awards bestowed by Scandinavian committees in recognition of cultural and scientific advances. The will of the Swedish chemist Alfred Nobel, the inventor of dynamite, established the prizes in 1895...

 laureate in Physics.

Under the Third Reich

When the Nazis entered the political scene, Lenard quickly attempted to ally himself with them, joining the party at an early stage. With another physics Nobel laureate
Nobel Prize in Physics
The 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...

, Johannes Stark
Johannes Stark
Johannes Stark was a German physicist, and Physics Nobel Prize laureate who was closely involved with the Deutsche Physik movement under the Nazi regime.-Early years:...

, Lenard began a core campaign to label Einstein's Relativity as Jewish Physics.

For a few years after the Nazi takeover in 1933, this found strong support from Nazi leadership, as it played upon a number of Nazi ideological themes, and gave yet another method to harass and delegitimize Jewish citizens and institutions. Lenard and Stark enjoyed the Nazi support because it allowed them to undertake a professional coup for their preferred scientific theory, an example of using heavy-handed politics
Politics
Politics is a process by which groups of people make collective decisions. The term is generally applied to the art or science of running governmental or state affairs, including behavior within civil governments, but also applies to institutions, fields, and special interest groups such as the...

 to resist an ideologically unwelcome scientific "paradigm shift
Paradigm shift
A Paradigm shift is, according to Thomas Kuhn in his influential book The Structure of Scientific Revolutions , a change in the basic assumptions, or paradigms, within the ruling theory of science...

". Under the rallying cry that physics should be more "German" and "Aryan
Aryan race
The Aryan race is a concept historically influential in Western culture in the period of the late 19th century and early 20th century. It derives from the idea that the original speakers of the Indo-European languages and their descendants up to the present day constitute a distinctive race or...

," Lenard and Stark, with backing from the Nazi leadership, entered on a plan to pressure and replace physicist positions at German universities with people teaching their preferred theories. By the late 1930s, there were no longer any Jewish physicist professorships in Germany, since under the Nuremberg Laws
Nuremberg Laws
The Nuremberg Laws of 1935 were antisemitic laws in Nazi Germany introduced at the annual Nuremberg Rally of the Nazi Party. After the takeover of power in 1933 by Hitler, Nazism became an official ideology incorporating scientific racism and antisemitism...

 of 1935 Jews were not allowed to work in universities. Stark in particular was also trying to get himself installed as the Führer
Führer
Führer , alternatively spelled Fuehrer in both English and German when the umlaut is not available, is a German title meaning leader or guide now most associated with Adolf Hitler, who modelled it on Benito Mussolini's title il Duce, as well as with Georg von Schönerer, whose followers also...

 of physics—not an entirely fanciful goal, given the Gleichschaltung
Gleichschaltung
Gleichschaltung , meaning "coordination", "making the same", "bringing into line", is a Nazi term for the process by which the Nazi regime successively established a system of totalitarian control and tight coordination over all aspects of society. The historian Richard J...

(literally, "coordination") principle applied to other professional disciplines, such as medicine
Medicine
Medicine is the science and art of healing. It encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness....

, under the Nazi regime, whereby a strict linear hierarchy
Hierarchy
A hierarchy is an arrangement of items in which the items are represented as being "above," "below," or "at the same level as" one another...

 was created along ideological lines.
They met with moderate success, but the support from the Nazi party was not as great as Lenard and Stark would have preferred. After a long period of harassment of the quantum physicist Werner Heisenberg
Werner Heisenberg
Werner Karl Heisenberg was a German theoretical physicist who made foundational contributions to quantum mechanics and is best known for asserting the uncertainty principle of quantum theory...

, including getting him labeled a "White Jew" in the July 15, 1937, issue of SS's weekly, Das Schwarze Korps
Das Schwarze Korps
Das Schwarze Korps was the official newspaper of the Schutzstaffel . This newspaper was published on Wednesdays and distributed free of charge. Each SS member was supposed to read the publication and urge others to do so as well...

(The Black Corps), they began to fall from influence. Heisenberg was not only a pre-eminent physicist whom even the Nazis realised they were better off with than without, however "Jewish" his theory might be in the eyes of Stark and Lenard, but Heisenberg had, as a young boy, attended school with SS chief Heinrich Himmler
Heinrich Himmler
Heinrich Luitpold Himmler was Reichsführer of the SS, a military commander, and a leading member of the Nazi Party. As Chief of the German Police and the Minister of the Interior from 1943, Himmler oversaw all internal and external police and security forces, including the Gestapo...

. In a historic moment, Heisenberg's mother rang Himmler's mother and asked her if she would please tell the SS to give "Werner" a break. After beginning a full character evaluation, which Heisenberg both instigated and passed, Himmler forbade further attack on the physicist. Heisenberg would later employ his "Jewish physics," in the German project to develop nuclear fission
German nuclear energy project
The German nuclear energy project, , was an attempted clandestine scientific effort led by Germany to develop and produce the atomic weapons during the events involving the World War II...

 for the purposes of nuclear weapons or nuclear energy
Nuclear reactor
A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are used for generating electricity and for the propulsion of ships. Usually heat from nuclear fission is passed to a working fluid , which runs through turbines that power either ship's...

 use. Himmler promised Heisenberg that after Germany won the war, the SS would finance a physics institute to be directed by Heisenberg.

Lenard began to play less and less of a role, and soon Stark ran into even more difficulty, as other scientists and industrialists known for being exceptionally "Aryan" came to the defense of Relativity and quantum mechanics
Quantum mechanics
Quantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic...

. As historian Mark Walker puts it, "despite his best efforts, in the end his science was not accepted, supported, or used by the Third Reich. Stark spent a great deal of his time during the Third Reich fighting with bureaucrats within the National Socialist state. Most of the National Socialist leadership either never supported Lenard and Stark, or abandoned them in the course of the Third Reich."

Effect on the German nuclear program

It is occasionally put forth that there is a great irony in the Nazis' labeling modern physics as "Jewish science", since it was exactly modern physics—and the work of many European exiles—which was used to create the atomic bomb. However, the exodus of German Jewish intellectuals and scientists happened far earlier than the popularisations of the notions of Deutsche Physik and "Jewish physics". Even if the German government had not embraced Lenard and Stark's ideas, the anti-Semitic content of the Nazi regime was enough by itself to destroy the Jewish scientific community in Germany. Furthermore, the German nuclear energy project
German nuclear energy project
The German nuclear energy project, , was an attempted clandestine scientific effort led by Germany to develop and produce the atomic weapons during the events involving the World War II...

 was never pursued with anywhere near the vigor of the Manhattan Project
Manhattan Project
The Manhattan Project was a research and development program, led by the United States with participation from the United Kingdom and Canada, that produced the first atomic bomb during World War II. From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the US Army...

 in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, and for that reason would likely not have succeeded in any case.

See also

  • Deutsche Mathematik
    Deutsche Mathematik
    Deutsche Mathematik was a mathematics journal founded by Ludwig Bieberbach and Theodor Vahlen in 1936. It is also the name of a movement closely associated with the journal whose aim was to promote "German mathematics" and eliminate "Jewish influence", similar to the Deutsche Physik movement...

  • Criticism of relativity theory
    Criticism of relativity theory
    Criticism of Albert Einstein's theory of relativity was mainly expressed in the early years after its publication on a scientific, pseudoscientific, philosophical, or ideological basis. Reasons for criticism were, for example, alternative theories, rejection of the abstract-mathematical method,...

  • Lysenkoism
    Lysenkoism
    Lysenkoism, or Lysenko-Michurinism, also denotes the biological inheritance principle which Trofim Lysenko subscribed to and which derive from theories of the heritability of acquired characteristics, a body of biological inheritance theory which departs from Mendelism and that Lysenko named...

  • Suppressed research in the Soviet Union
    Suppressed research in the Soviet Union
    Suppressed research in the Soviet Union refers to scientific fields which were banned in the Soviet Union, usually for ideological reasons. Science and humanities were placed under a strict ideological scrutiny in the Soviet Union. All research was to be founded on the philosophy of dialectical...


Further literature

  • Beyerchen, Alan, Scientists under Hitler: Politics and the physics community in the Third Reich (New Haven, CT: Yale University Press, 1977).
  • Hentschel, Klaus, ed. Physics and National Socialism: An anthology of primary sources (Basel: Birkhaeuser, 1996).
  • Walker, Mark, Nazi science: Myth, truth, and the German atomic bomb (New York: Harper Collins, 1995).
  • Philipp Lenard: Wissenschaftliche Abhandlungen Band IV. Herausgegeben und kritisch kommentiert von Charlotte Schönbeck. [Posthumously, German Language.] Berlin: GNT-Verlag, 2003. ISBN 978-3-928186-35-3. Introduction, Content.
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