Template:Selected anniversaries/September 20: Difference between revisions
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||Leonarde Keeler (d. 1949) was the co-inventor of the polygraph. | ||Leonarde Keeler (d. 1949) was the co-inventor of the polygraph. | ||
||Andrew Claude de la Cherois Crommelin (d. 20 September 1939) was an astronomer of French and Huguenot descent who was born in Cushendun, County Antrim, Ireland. He worked at the Royal Greenwich Observatory and went on several solar eclipse expeditions. | |||
File:Alice Beta.jpg|link=Alice Beta|1954: Mathematicians [[Alice Beta]] and [[Paul Erdős (nonfiction)|Paul Erdős]] co-publish a new class of [[Gnomon algorithm functions]] which detect and prevent [[crimes against mathematical constants]]. | File:Alice Beta.jpg|link=Alice Beta|1954: Mathematicians [[Alice Beta]] and [[Paul Erdős (nonfiction)|Paul Erdős]] co-publish a new class of [[Gnomon algorithm functions]] which detect and prevent [[crimes against mathematical constants]]. | ||
Revision as of 14:51, 4 November 2017
1842: Chemist and physicist James Dewar born. He will invent the vacuum flask, which he will use in conjunction with extensive research into the liquefaction of gases.
1954: Mathematicians Alice Beta and Paul Erdős co-publish a new class of Gnomon algorithm functions which detect and prevent crimes against mathematical constants.
1996: Mathematician and academic Paul Erdős dies. He firmly believed mathematics to be a social activity, living an itinerant lifestyle with the sole purpose of writing mathematical papers with other mathematicians.
1997: Signed first edition of Janet Beta at ENIAC sells for five hundred thousand dollars at charity benefit for victims of crimes against mathematical constants.