1774 in science
Encyclopedia
The year 1774 in science
and technology
involved some significant events.
Science
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe...
and technology
Technology
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...
involved some significant events.
Chemistry
- August 1 - Joseph PriestleyJoseph PriestleyJoseph Priestley, FRS was an 18th-century English theologian, Dissenting clergyman, natural philosopher, chemist, educator, and political theorist who published over 150 works...
, working at Bowood HouseBowood HouseBowood is a grade I listed Georgian country house with interiors by Robert Adam and a garden designed by Lancelot "Capability" Brown. It is adjacent to the village of Derry Hill, halfway between Calne and Chippenham in Wiltshire, England...
, WiltshireWiltshireWiltshire is a ceremonial county in South West England. It is landlocked and borders the counties of Dorset, Somerset, Hampshire, Gloucestershire, Oxfordshire and Berkshire. It contains the unitary authority of Swindon and covers...
, EnglandEnglandEngland is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...
, isolates oxygenOxygenOxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...
in the form of a gasGasGas is one of the three classical states of matter . Near absolute zero, a substance exists as a solid. As heat is added to this substance it melts into a liquid at its melting point , boils into a gas at its boiling point, and if heated high enough would enter a plasma state in which the electrons...
, which he calls "dephlogisticated air". - Carl Wilhelm ScheeleCarl Wilhelm ScheeleCarl Wilhelm Scheele was a German-Swedish pharmaceutical chemist. Isaac Asimov called him "hard-luck Scheele" because he made a number of chemical discoveries before others who are generally given the credit...
discovers "dephlogisticated muriatic acid" (chlorineChlorineChlorine is the chemical element with atomic number 17 and symbol Cl. It is the second lightest halogen, found in the periodic table in group 17. The element forms diatomic molecules under standard conditions, called dichlorine...
), manganeseManganeseManganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature , and in many minerals...
and bariumBariumBarium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Barium is never found in nature in its pure form due to its reactivity with air. Its oxide is historically known as baryta but it reacts with...
.
Mathematics
- P.-S. LaplacePierre-Simon LaplacePierre-Simon, marquis de Laplace was a French mathematician and astronomer whose work was pivotal to the development of mathematical astronomy and statistics. He summarized and extended the work of his predecessors in his five volume Mécanique Céleste...
publishes Mémoire sur la probabilité des causes par les événements, including a restatement of Bayes' theoremBayes' theoremIn probability theory and applications, Bayes' theorem relates the conditional probabilities P and P. It is commonly used in science and engineering. The theorem is named for Thomas Bayes ....
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Medicine and physiology
- William HunterWilliam Hunter (anatomist)William Hunter FRS was a Scottish anatomist and physician. He was a leading teacher of anatomy, and the outstanding obstetrician of his day...
's Anatomia uteri humani gravidi tabulis illustrata | The Anatomy of the Human Gravid Uterus exhibited in figures is published by John BaskervilleJohn BaskervilleJohn Baskerville was an English businessman, in areas including japanning and papier-mâché, but he is best remembered as a printer and typographer.-Life:...
in BirminghamBirminghamBirmingham is a city and metropolitan borough in the West Midlands of England. It is the most populous British city outside the capital London, with a population of 1,036,900 , and lies at the heart of the West Midlands conurbation, the second most populous urban area in the United Kingdom with a...
, EnglandEnglandEngland is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...
.
Physics
- The Schiehallion experimentSchiehallion experimentThe Schiehallion experiment was an 18th-century experiment to determine the mean density of the Earth. Funded by a grant from the Royal Society, it was conducted in the summer of 1774 around the Scottish mountain of Schiehallion, Perthshire. The experiment involved measuring the tiny deflection of...
is carried out to determine the mean density of the Earth.
Technology
- John WilkinsonJohn Wilkinson (industrialist)John "Iron-Mad" Wilkinson was an English industrialist who pioneered the use and manufacture of cast iron and cast-iron goods in the Industrial Revolution.-Early life:...
patents a method for boring cannonCannonA cannon is any piece of artillery that uses gunpowder or other usually explosive-based propellents to launch a projectile. Cannon vary in caliber, range, mobility, rate of fire, angle of fire, and firepower; different forms of cannon combine and balance these attributes in varying degrees,...
from the solid, subsequently utilised for accurate boring of steam engineSteam engineA steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines are external combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be...
cylinders. - Jesse RamsdenJesse RamsdenJesse Ramsden FRSE was an English astronomical and scientific instrument maker.Ramsden was born at Salterhebble, Halifax, West Riding of Yorkshire, England. After serving his apprenticeship with a cloth-worker in Halifax, he went in 1755 to London, where in 1758 he was apprenticed to a...
produces an advanced circular dividing engineDividing engineA dividing engine is a device specifically employed to mark graduations on measuring instruments.-History:There has always been a need for accurate measuring instruments...
with the support of the Board of LongitudeBoard of LongitudeThe Board of Longitude was the popular name for the Commissioners for the Discovery of the Longitude at Sea. It was a British Government body formed in 1714 to administer a scheme of prizes intended to encourage innovators to solve the problem of finding longitude at sea.-Origins:Navigators and...
.
Births
- April 21 - Jean-Baptiste BiotJean-Baptiste BiotJean-Baptiste Biot was a French physicist, astronomer, and mathematician who established the reality of meteorites, made an early balloon flight, and studied the polarization of light.- Biography :...
(d. 18621862 in scienceThe year 1862 in science and technology involved some significant events, listed below.-Astronomy:* January 31 - Alvan Graham Clark makes the first observation of Sirius B, a white dwarf star, through an eighteen inch telescope at Northwestern University....
), physicistPhysicistA physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...
. - April 28 - Francis BailyFrancis BailyFrancis Baily was an English astronomer, most famous for his observations of 'Baily's beads' during an eclipse of the Sun.-Life:Baily was born at Newbury in Berkshire in 1774...
(d. 18441844 in scienceThe year 1844 in science and technology involved some significant events, listed below.-Astronomy:* Friedrich Bessel explains the wobbling motions of Sirius and Procyon by suggesting that these stars have dark companions.-Biology:...
), astronomerAstronomerAn astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...
. - May 7 - Francis BeaufortFrancis BeaufortRear-Admiral Sir Francis Beaufort, FRS, FRGS was an Irish hydrographer and officer in Britain's Royal Navy...
(d. 18561856 in scienceThe year 1856 in science and technology involved some significant events, listed below.-Archaeology:* First remains of Neanderthal Man found in the Neandertal Valley of Germany.-Biology:* Gregor Mendel starts his research on genetics....
), hydrographer. - May 28 - Edward HowardEdward Charles HowardEdward Charles Howard FRS the youngest son of Charles Howard, 11th Duke of Norfolk, was a British chemist who has been described as the first chemical engineer of any eminence....
(d. 18161816 in scienceThe year 1816 in science and technology involved some significant events, listed below.-Medicine:* René Laennec invents the stethoscope.* Caleb Parry publishes An Experimental Inquiry into the Nature, Cause and Varieties of the Arterial Pulse, describing the mechanisms for the pulse.-Mineralogy:*...
), chemistChemistA chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties such as density and acidity. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms...
. - August 18 - Meriwether LewisMeriwether LewisMeriwether Lewis was an American explorer, soldier, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition also known as the Corps of Discovery, with William Clark...
(d. 18091809 in scienceThe year 1809 in science and technology involved some significant events, listed below.-Astronomy:* Carl Friedrich Gauss publishes Theoria motus corporum coelestium in sectionibus conicis solem ambientum in Hamburg, introducing the Gaussian gravitational constant and containing an influential...
), explorer. - November - Charles BellCharles BellSir Charles Bell was a Scottish surgeon, anatomist, neurologist and philosophical theologian.His three older brothers included John Bell , also a noted surgeon and writer; and the advocate George Joseph Bell .-Life:...
(d. 18421842 in scienceThe year 1842 in science and technology involved some significant events, listed below.-Exploration:* Antarctic explorer James Clark Ross charts the eastern side of James Ross Island and on January 23 reaches a Farthest South of 78°09'30"S.-Medicine:...
), anatomist. - December 12 - William HenryWilliam Henry (chemist)William Henry was an English chemist.He was the son of Thomas Henry and was born in Manchester England. He developed what is known today as Henry's Law.-Life:...
(d. 18361836 in scienceThe year 1836 in science and technology involved some significant events, listed below.-Astronomy:* May 15 - Francis Baily, during an eclipse of the sun, observes the phenomenon named after him as Baily's beads.-Biology:...
), chemist.
Deaths
- February 4 - Charles Marie de La CondamineCharles Marie de La CondamineCharles Marie de La Condamine was a French explorer, geographer, and mathematician. He spent ten years in present-day Ecuador measuring the length of a degree latitude at the equator and preparing the first map of the Amazon region based on astronomical observations.-Biography:Charles Marie de La...
, FrenchFrench peopleThe French are a nation that share a common French culture and speak the French language as a mother tongue. Historically, the French population are descended from peoples of Celtic, Latin and Germanic origin, and are today a mixture of several ethnic groups...
geographerGeographerA geographer is a scholar whose area of study is geography, the study of Earth's natural environment and human society.Although geographers are historically known as people who make maps, map making is actually the field of study of cartography, a subset of geography...
(b. 17011701 in scienceThe year 1701 in science and technology involved some significant events.-Earth sciences:* Edmond Halley's General Chart of the Variation of the Compass is first published, the first to show magnetic declination and the first on which isogonic, or Halleyan, lines appear.-Medicine:* Italian...
) - July 9 - Anna Morandi ManzoliniAnna Morandi ManzoliniAnna Morandi Manzolini was a lecturer of anatomy and sculptor of anatomical models in wax. She was married to Giovanni Manzolini, a professor of anatomy at the University of Bologna. When her husband became ill with tuberculosis, she received special permission to lecture in his place. She became...
, ItalianItalian peopleThe Italian people are an ethnic group that share a common Italian culture, ancestry and speak the Italian language as a mother tongue. Within Italy, Italians are defined by citizenship, regardless of ancestry or country of residence , and are distinguished from people...
anatomist (b. 17141714 in scienceThe year 1714 in science and technology involved some significant events.-Mathematics:* March - Roger Cotes publishes Logometrica in the Philosophical Transactions of the Royal Society...
)