Template:Selected anniversaries/December 23: Difference between revisions
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|File:The Eel receives news from informants.jpg|link=The Eel's henchmen|1999: The Eel receives [[The Eel's henchmen|news from informants]]. | |File:The Eel receives news from informants.jpg|link=The Eel's henchmen|1999: The Eel receives [[The Eel's henchmen|news from informants]]. | ||
||Donald Clayton Spencer (d. December 23, 2001) was an American mathematician, known for work on deformation theory of structures arising in differential geometry, and on several complex variables from the point of view of partial differential equations. | |||
|File:Canterbury Cathedral 1890-1900.jpg|link=Canterbury Cathedral (nonfiction)|2012: Festival at [[Canterbury Cathedral (nonfiction)|Canterbury Cathedral]] celebrates history of [[scrying engines]]. | |File:Canterbury Cathedral 1890-1900.jpg|link=Canterbury Cathedral (nonfiction)|2012: Festival at [[Canterbury Cathedral (nonfiction)|Canterbury Cathedral]] celebrates history of [[scrying engines]]. | ||
Revision as of 19:30, 27 November 2017
1722: Mathematician and academic Pierre Varignon dies. He simplified the proofs of many propositions in mechanics, adapted Leibniz's calculus to the inertial mechanics of Newton's Principia, and treated mechanics in terms of the composition of forces.
1822: Inventor and engineer Wilhelm Bauer born. He will design and invent submarines.
1948: Mathematician Wilhelm Ackermann publishes his research on applications of the Ackermann function to detecting and preventing crimes against mathematical constants.