Template:Selected anniversaries/May 15: Difference between revisions
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||1939: Mathematician Brian Hartley born. He will specialize in group theory. Pic: http://www.maths.manchester.ac.uk/about-us/history/brian-hartley/ | ||1939: Mathematician Brian Hartley born. He will specialize in group theory. Pic: http://www.maths.manchester.ac.uk/about-us/history/brian-hartley/ | ||
|| | ||1944: Chicago Pile-3 (CP-3) was the first heavy water reactor in the world, going critical on 15 May 1944. It was used in the experimental physics work of the Metallurgical Laboratory for the Manhattan Project. Pic. | ||
||1956: Austin Osman Spare dies ... painter and magician. | ||1956: Austin Osman Spare dies ... painter and magician. | ||
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||1973: Captain, U.S.N. Laurance Frye Safford (d. May 15, 1973) was a U.S. Navy cryptologist. He 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. His identification with the Naval effort was so close that he was the Friedman of the Navy. | ||1973: Captain, U.S.N. Laurance Frye Safford (d. May 15, 1973) was a U.S. Navy cryptologist. He 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. His identification with the Naval effort was so close that he was the Friedman of the Navy. | ||
||1986: Helene (Hel) Braun dies ... mathematician who specialized in number theory and modular forms; proving the convergence of the Eisenstein series. She also wrote an autobiography, ''The Beginning of A Scientific Career'', describing her experience as a female scientist in the Third Reich. No pic. | |||
||1991: Andreas Floer dies ... mathematician and academic. | ||1991: Andreas Floer dies ... mathematician and academic. | ||
Revision as of 08:25, 5 September 2018
1579: Mathematician and physicist Thomas Fincke invents new type of scrying engine which pre-visualizes tangents and secants. He will use the engine to detect and expose crimes against mathematical constants.
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.
1864: Asclepius Myrmidon Prepares for Emergency Field Surgery incorporated into army medical manuals on both sides of the American Civil War.
1888: Council of algorithms announces plans to fund and build a Museum of Algorithms.
2018: News study suggests that Greedy coloring algorithms "have been systematically corrupted by a consortium of math criminals including Anarchimedes, Forbidden Ratio, and parties as yet uncounted and unidentified."