Template:Selected anniversaries/May 15: Difference between revisions

Revision as of 16:28, 22 October 2020

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.
1973: Cryptologist Laurance Safford born. Safford will establish the Naval cryptologic organization after World War I, and head the effort more or less constantly until shortly after the Japanese attack on Pearl Harbor.
2017: Three Kings voted Picture of the Day by the citizens of New Minneapolis, Canada.
2019: New study says that Greedy coloring algorithms "have been systematically corrupted by a consortium of math criminals including Anarchimedes and Forbidden Ratio." (Source: APTO crime report.)

@@ Line 80: / Line 80: @@
 ||1972: In Laurel, Maryland, Arthur Bremer shoots and paralyzes Alabama Governor George Wallace while he is campaigning to become President.
-||1973: Laurance Safford dies ... 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. Pic.
+File:Laurance Safford.jpg|link=Laurance Safford (nonfiction)|1973: Cryptologist [[Laurance Safford (nonfiction)|Laurance Safford]] born. Safford will establish the Naval cryptologic organization after World War I, and head 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