Template:Selected anniversaries/December 23: Difference between revisions
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||1986 – Voyager, piloted by Dick Rutan and Jeana Yeager, lands at Edwards Air Force Base in California becoming the first aircraft to fly non-stop around the world without aerial or ground refueling. | ||1986 – Voyager, piloted by Dick Rutan and Jeana Yeager, lands at Edwards Air Force Base in California becoming the first aircraft to fly non-stop around the world without aerial or ground refueling. | ||
||Richard Rado FRS (d. 23 December 1989) was a German-born British mathematician whose research concerned combinatorics and graph theory. In graph theory, the Rado graph, a countably infinite graph containing all countably infinite graphs as induced subgraphs, is named after Rado. He rediscovered it in 1964 after previous works on the same graph by Wilhelm Ackermann, Paul Erdős, and Alfréd Rényi. Pic. | |||
|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]]. | ||
Revision as of 07:55, 4 February 2018
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.