1850 in science

The year 1850 in science and technology involved some significant events, listed below.

Biology

May 25 – The young hippopotamus Obaysch arrives at London Zoo from Egypt, the first seen in Europe since Roman times.

October 17 – James Young patents a method of distilling kerosene from coal.
Rev. Levi Hill invents a color photography process, "heliochromy", capable of basic rendering of reds and blues.

March – Dr Benjamin Guy Babington founds the London Epidemiological Society.^[5]
Central Criminal Lunatic Asylum for Ireland opened in Dundrum, Dublin, the first secure hospital in Europe.^[6]

May – John Tyndall and Hermann Knoblauch publish a report on "The magneto-optic properties of crystals, and the relation of magnetism and diamagnetism to molecular arrangement".
Rudolf Clausius publishes his paper on the mechanical theory of heat, which first states the basic ideas of the second law of thermodynamics.^[7]
Hippolyte Fizeau and E. Gounelle measure the speed of electricity.
Léon Foucault demonstrates the greater speed of light in air than in water, and establishes that the speed of light in different media is inverse to the refractive indices of the media, using the Fizeau-Foucault apparatus.

July 14 – John Gorrie makes the first public demonstration of his ice-making machine, in Apalachicola, Florida.^[8]
Completion of the Bibliothèque Sainte-Geneviève in Paris to the design of Henri Labrouste, the first major public building with an exposed cast-iron frame.^[9]

Astronomer Maria Mitchell becomes the first woman member of the American Association for the Advancement of Science.
The University of Oxford in England establishes an Honour School (i.e. an undergraduate course) in Natural Science.

January 5 – Sidney Browne (died 1941), British military nurse.
January 15 (January 3 O.S.) – Sofia Kovalevskaya (died 1891), Russian-born mathematician.
January 24 – Hermann Ebbinghaus (died 1909), German psychologist.
January 29 – Edmond Nocard (died 1903), French veterinarian and microbiologist.
February 15 – Sophie Bryant (died 1922), Irish-born mathematician and educationalist.
March 31 – Charles Walcott (died 1927), American paleontologist.
April 10 - Mary Emilie Holmes (d. 1906), American geologist and educator.
May 18 – Oliver Heaviside (died 1925), English physicist.
May 23 – George Claridge Druce (died 1932), English botanist.
June 6 – Karl Ferdinand Braun (died 1918), German-born physicist.
August 30 – Charles Richet (died 1935), French physiologist, Nobel Prize winner.

↑ "Query VI". The Lady's and Gentleman's Diary.
↑ Tahta, Dick (2006). The Fifteen Schoolgirls. Cambridge: Black Apollo Press. ISBN 1-900355-48-5.
↑ London, Edinburgh & Dublin Philosophical Magazine 37 (1850) p. 369 (OED).
↑ Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. p. 156. ISBN 978-1-84724-008-8.
↑ Evans, Alun (2001). "Benjamin Guy Babington: Founding President of the London Epidemiological Society". International Journal of Epidemiology. 30 (2): 226–230. doi:10.1093/ije/30.2.226. PMID 11369720. Retrieved 2012-02-07.
↑ "History". Central Mental Hospital Carers. Retrieved 2014-11-22.
↑ Clausius, R. (1850). "Über die bewegende Kraft der Wärme, pt I". Annalen der Physik. 79: 368–397. doi:10.1002/andp.18501550306. Retrieved 2011-04-26. "Pt II". ib. 155: 500–524. doi:10.1002/andp.18501550403. English translation as "On the Moving Force of Heat, and the Laws regarding the Nature of Heat itself which are deducible therefrom". Philosophical Magazine. 2: 1–21, 102–119. 1851. Retrieved 2011-04-26.
↑ Burke, James (1978). Connections. London: Macmillan. p. 240. ISBN 0-333-24827-9.
↑ Trachtenberg, Marvin; Hyman, Isabelle (1986). Architecture: from Prehistory to Post-Modernism – the Western tradition. London: Academy Editions. p. 478. ISBN 0856708992.

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