The year 1860 in science and technology involved some significant events, listed below.
Astronomy
July 18 – Total solar eclipse. Warren De La Rue's photographs of this event, taken in Spain, together with those of Angelo Secchi, demonstrate the solar character of the prominences or red flames seen around the limb of the moon during such an eclipse.[1]
Joseph Dalton Hooker concludes publication of The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror ... 1839–1843 with issue of the final part of Flora Tasmaniae in London.[2]
Chemistry
September 3–5 – Karlsruhe Congress, the first international meeting of chemists.
Stanislao Cannizzaro, resurrecting Avogadro's ideas regarding diatomic molecules, compiles a table of atomic weights and presents it at the 1860 Karlsruhe Congress, ending decades of conflicting atomic weights and molecular formulas, and leading to Mendeleev's discovery of the periodic law.[4]
Albert Niemann makes a detailed analysis of the coca leaf, isolating and purifying the crystallinealkaloid which he calls cocaine.[5]
The Erlenmeyer flask was created by German chemist Emil Erlenmeyer.
Gustav Fechner publishes Elemente der Psychophysik, establishing the discipline of psychophysics and introducing the Weber–Fechner law on the intensity of stimuli.[6][7]
Technology
April 9 – Earliest known decipherable sound recording of the human voice, a phonautogram, produced by Édouard-Léon Scott de Martinville. Playback is impossible at this time.[8]
^Fancher, Raymond E. (1996). Pioneers of Psychology (3rd ed.). New York: W. W. Norton & Co. ISBN 978-0-393-96994-8.
^Sheynin, Oscar (May 2004). "Fechner as a statistician". British Journal of Mathematical and Statistical Psychology. 57 (1): 53–72. doi:10.1348/000711004849196. PMID 15171801.
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