Template:Selected anniversaries/December 18: Difference between revisions

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||1917: Roger Conant Lyndon born ... mathematician, for many years a professor at the University of Michigan. He is known for Lyndon words, the Curtis–Hedlund–Lyndon theorem, Craig–Lyndon interpolation and the Lyndon–Hochschild–Serre spectral sequence. Pic: https://fr.wikipedia.org/wiki/Roger_Lyndon
||1917: Roger Conant Lyndon born ... mathematician, for many years a professor at the University of Michigan. He is known for Lyndon words, the Curtis–Hedlund–Lyndon theorem, Craig–Lyndon interpolation and the Lyndon–Hochschild–Serre spectral sequence. Pic: https://fr.wikipedia.org/wiki/Roger_Lyndon
File:Robert Andrews Millikan.jpg|link=Robert Andrews Millikan (nonfiction)|1924: Physicist and [[APTO]] consultant [[Robert Andrews Millikan (nonfiction)|Robert Andrews Millikan]] uses the measurement of the elementary electronic charge to detect and prevent [[crimes against physical constants]].


||1939: Freya radar first successfully used ... two stations detected an approaching daytime raid on Wilhelmshaven by 22 RAF Vickers Wellington bombers at a range of 113 km and guided fighter planes toward them via radio. Pic.
||1939: Freya radar first successfully used ... two stations detected an approaching daytime raid on Wilhelmshaven by 22 RAF Vickers Wellington bombers at a range of 113 km and guided fighter planes toward them via radio. Pic.

Revision as of 16:27, 19 December 2018