Template:Selected anniversaries/September 2: Difference between revisions

Revision as of 11:18, 10 January 2019

1768: French mathematician and engineer Antoine Deparcieux dies. He made a living manufacturing sundials.
1808: Carl Friedrich Gauss writes Wolfgang Bolyai: "It is not knowledge, but the act of learning, not possession but the act of getting there, which grants the greatest enjoyment."
1865: Physicist, astronomer, and mathematician William Rowan Hamilton dies. He made important contributions to classical mechanics, optics, and algebra, inventing the quaternion.
1947: Mathematician and crimefighter Haskell Curry publishes new theory of combinatory logic which uses Gnomon algorithm functions to detect and prevent crimes against mathematical constants.
1948: Archaeologist and spy Sylvanus Morley dies. He conducted espionage in Mexico on behalf of the United States during World War I; the scope of these activities only came to light well after his death.
1999: Signed first edition of The Eel Escapes Hydrolab sells for one and a half million dollars.
2017: Quaternion multiplication table sells for two million dollars.

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 File:The Eel Escapes Hydrolab.jpg|link=The Eel Escapes Hydrolab|1999: Signed first edition of ''[[The Eel Escapes Hydrolab]]'' sells for one and a half million dollars.
+||2006: Gisbert F. R. Hasenjaeger dies ... mathematical logician. Independently and simultaneously with Leon Henkin in 1949, he developed a new proof of the completeness theorem of Kurt Gödel for predicate logic. He worked as an assistant to Heinrich Scholz at Section IVa of Oberkommando der Wehrmacht Chiffrierabteilung, and was responsible for the security of the Enigma machine. Pic.
 File:Quaternion multiplication.jpg|link=Quaternion (nonfiction)|2017: [[Quaternion (nonfiction)|Quaternion multiplication table]] sells for two million dollars.
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