Template:Selected anniversaries/May 30: Difference between revisions

Revision as of 19:11, 4 November 2017

1423: Mathematician and astronomer Georg von Peuerbach (nonfiction) born. He will be remembered for his streamlined presentation of Ptolemaic astronomy in the Theoricae Novae Planetarum.
1946: Physicist Louis Slotin dies. He was fatally irradiated in a criticality incident during an experiment with the demon core at Los Alamos National Laboratory.
1964: Physicist and academic Leo Szilard dies. He conceived the nuclear chain reaction in 1933, and patented the idea of a nuclear reactor with Enrico Fermi.
1971: Mariner 9 launched towards Mars. It will map 70% of the surface, and study temporal changes in the atmosphere and surface.
1989: Army research laboratories convert modern plowshares into ancient swords. Military contractors call technique "Astonishing breakthrough."

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 ||1768 – Georg Amadeus Carl Friedrich Naumann, German mineralogist and geologist (d. 1873)
+||Eugène Charles Catalan (30 May 1814 – 14 February 1894)[1] was a French and Belgian mathematician who worked on continued fractions, descriptive geometry, number theory and combinatorics. His notable contributions included discovering a periodic minimal surface in the space {\displaystyle \mathbb {R} ^{3}} \mathbb {R} ^{3}; stating the famous Catalan's conjecture, which was eventually proved in 2002; and, introducing the Catalan numbers to solve a combinatorial problem.
 ||1814 – Eugène Charles Catalan, Belgian-French mathematician and academic (d. 1894)