1873 in science

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The year 1873 in science and technology involved some significant events, listed below.

Chemistry

• Jacobus Henricus van 't Hoff and Joseph Achille Le Bel, working independently, develop a model of chemical bonding that explains the chirality experiments of Pasteur and provides a physical cause for optical activity in chiral compounds ^{[1] [2]}

Exploration

• The Austro-Hungarian North Pole Expedition discovers Franz-Josef Land

Mathematics

• Charles Hermite proves that the mathematical constant e is a transcendental number ^[3]
• Henri Brocard introduces the Brocard points, Brocard triangle and Brocard circle ^{[3] [4] [5]}

Meteorology

• September 15 – agreement for establishment of the International Meteorological Organization.^{[ citation needed ]}

Physics

• February 20 – English electrical engineer Willoughby Smith publishes his discovery of the photoconductivity of the element selenium ^[6]
• June 14 – Johannes Diderik van der Waals defends his thesis, Over de Continuiteit van den Gas en Vloeistoftoestand (On the continuity of the gaseous and liquid state) at Leiden University; in this, he introduces the concepts of molecular volume and molecular attraction; gives a semi-quantitative description of the phenomena of condensation and critical temperatures; and derives the van der Waals equation ^[7]
• September 22 – James Clerk Maxwell delivers a discourse on molecules to the British Association for the Advancement of Science meeting in Bradford ^[8]
• December – J. Willard Gibbs describes the principle of Gibbs free energy ^[9]
• James Clerk Maxwell's A Treatise on Electricity and Magnetism first presents the partial differential equations known as Maxwell's equations which form the foundation of classical electrodynamics, optics and electric circuits
• Frederick Guthrie is the first to report observing thermionic emission ^[10]

Physiology and medicine

• June 18 – Alice Vickery passes the Royal Pharmaceutical Society's examination, becoming the first qualified female pharmacist in the United Kingdom ^[11]
• Mycobacterium leprae , the causative agent of leprosy, is discovered by Norwegian physician Gerhard Armauer Hansen. It is the first bacterium to be identified as pathogenic in humans ^{[12] [13]}
• English allergist Charles Harrison Blackley publishes Experimental Researches on the Causes and Nature of Catarrhus aestivus
• Camillo Golgi first publishes a demonstration of Golgi's method ^[14]

Technology

• May 20 – Jacob W. Davis and Levi Strauss receive United States patent#139121 for using copper rivets to strengthen the pockets of denim jeans
• Carl von Linde installs his first commercial refrigeration system, built by Maschinenfabrik Augsburg for the Spaten Brewery and using dimethyl ether as the refrigerant
• Christopher Miner Spencer introduces the fully automatic turret lathe ^[15]

Awards

• Copley Medal: Hermann Helmholtz ^[16]
• Wollaston Medal for geology: Philip de Malpas Grey Egerton

Births

• February 11 – Louis Charles Christopher Krieger (died 1940), American mycologist
• February 12 – Barnum Brown (died 1963), American paleontologist
• March 5 – Thomas Harrison Montgomery, Jr. (died 1912), American zoologist and cell biologist
• April 25 – Félix d'Herelle (died 1949), French-Canadian microbiologist, a co-discoverer of bacteriophages
• June 28 – Alexis Carrel (died 1942), French surgeon, biologist and winner of a Nobel Prize in Physiology or Medicine
• June 30 – Friedrich Karl Georg Fedde (died 1942), German botanist
• July 7 – Sándor Ferenczi (died 1933), Hungarian psychoanalyst
• October 4 – Dimitrie Pompeiu (died 1954), Romanian mathematician
• October 9 – Karl Schwarzschild (died 1916), German astronomer and physicist

Deaths

• January 27 – Adam Sedgwick (born 1785), English geologist
• February 1 – Matthew Fontaine Maury (born 1806), American oceanographer
• April 18 – Justus von Liebig (born 1803), German chemist
• March 10 – John Torrey (born 1796), American botanist
• March 30 – Bénédict Morel (born 1809), French psychiatrist
• September 15 – Alexei Pavlovich Fedchenko (born 1844), Russian naturalist
• September 24 – John Thurnam (born 1810), English psychiatrist and ethnologist
• October 17 – Robert McClure (born 1807), British Arctic explorer
• December 14 – Louis Agassiz (born 1807), Swiss-American zoologist and geologist

References

1. "Jacobus Henricus van't Hoff". Science History Institute. June 2016. Retrieved 21 March 2018.
2. Bowden, Mary Ellen (1997). "Jacobus Henricus van't Hoff". Chemical achievers : the human face of the chemical sciences . Philadelphia, PA: Chemical Heritage Foundation. pp.  94–95. ISBN   9780941901123.
3. Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. ISBN   978-1-84724-008-8.
4. "Etudes d'un nouveau cercle du plan du triangle". Paper to l'Association française pour l'avancement des sciences.
5. Guggenbuhl, Laura (December 1953). "Henri Brocard and the Geometry of the Triangle". The Mathematical Gazette. 37 (322). London: Mathematical Association: 241–243. doi:10.1017/S0025557200027558. JSTOR   3610034.
6. "Effect of Light on Selenium During the Passage of an Electric Current". Nature . 7 (173): 303. 1873. Bibcode:1873Natur...7R.303.. doi: 10.1038/007303e0 .
7. Clerk-Maxwell, J. (1874). "Van der Waals on the Continuity of the Gaseous and Liquid States" (PDF). Nature. 10 (259): 477–480. Bibcode:1874Natur..10..477C. doi:10.1038/010477a0.
8. Clerk-Maxwell, J. (25 September 1873). "Molecules". Nature. 8 (204): 437–41. Bibcode:1873Natur...8..437.. doi: 10.1038/008437a0 . Also digitised at The Victorian Web. Archived 2012-02-23.
9. Gibbs, J. W. (1873). "A Method of Geometrical Representation of the Thermodynamic Properties of Substances by Means of Surfaces". Transactions of the Connecticut Academy of Arts and Sciences. 2: 382–404.
10. Richardson, Owen (1921). The emission of positive ions by hot metals. ISBN   978-1-929148-10-3 . Retrieved 2009-07-11.
11. "Alice Vickery". www.rpharms.com. Royal Pharmaceutical Society. Archived from the original on 2016-03-07. Retrieved 2013-07-25.
12. Hansen, G. H. A. (1874). "Undersøgelser Angående Spedalskhedens Årsager" [Investigations concerning the etiology of leprosy]. Norsk Mag. Laegervidenskaben (in Norwegian). 4: 1–88.
13. Irgens, L. (2002). "The discovery of the leprosy bacillus". Tidsskr. Nor. Laegeforen. 122 (7): 708–9. PMID   11998735.
14. Finger, Stanley (1994). Origins of Neuroscience: a history of explorations into brain function. Oxford University Press. p. 45. ISBN   9780195146943. OCLC   27151391. In 1873, Golgi published the first brief but "adequate" picture of la reazione nera (the black reaction), which showed the whole nerve cell, including its cell body, axon, and branching dendrites.
15. Rolt, L. T. C. (1965). A Short History of Machine Tools. Cambridge, Massachusetts: MIT Press. p. 169.
16. "Copley Medal | British scientific award". Encyclopedia Britannica. Retrieved 23 July 2020.