Template:Selected anniversaries/May 15: Difference between revisions

Revision as of 22:48, 26 January 2022

1618: Johannes Kepler confirms his previously rejected discovery of the third law of planetary motion (he first discovered it on March 8 but soon rejected the idea after some initial calculations were made).
1801: Mathematician Joseph Ludwig Raabe born. He will discover Raabe's ratio test, which determines the convergence or divergence of an infinite series, in some cases.
1836: Astronomer Francis Baily observes "Baily's beads" during an annular eclipse.

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 ||1862: Cassius Jackson Keyser dies ... mathematician. Pic.
-File:Asclepius Myrmidon Prepares for Emergency Field Surgery.jpg|link=Asclepius Myrmidon Prepares for Emergency Field Surgery|1864: ''Asclepius Myrmidon Prepares for Emergency Field Surgery'' incorporated into army medical manuals on both sides of the American Civil War.
 ||1891: Fritz Feigl born ... chemist and academic. Pic search.
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 ||1972: In Laurel, Maryland, Arthur Bremer shoots and paralyzes Alabama Governor George Wallace while he is campaigning to become President.
-File:Laurance Safford.jpg|link=Laurance Safford (nonfiction)|1973: Cryptologist [[Laurance Safford (nonfiction)|Laurance Safford]] born. Safford established the Naval cryptologic organization after World War I, and headed the effort more or less constantly until shortly after the Japanese attack on Pearl Harbor.
 ||1975: Taira Honda dies ... mathematician working on number theory who proved the Honda–Tate theorem classifying abelian varieties over finite fields. Pic: http://www.learn-math.info/mathematicians/historyDetail.htm?id=Honda