Template:Selected anniversaries/July 13: Difference between revisions

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||2017: Norman Woodason Johnson dies ... mathematician. In 1966 he enumerated 92 convex non-uniform polyhedra with regular faces. Victor Zalgaller later proved (1969) that Johnson's list was complete; the complete set is now known as the Johnson solids. Pic.
||2017: Norman Woodason Johnson dies ... mathematician. In 1966 he enumerated 92 convex non-uniform polyhedra with regular faces. Victor Zalgaller later proved (1969) that Johnson's list was complete; the complete set is now known as the Johnson solids. Pic.
||2019: Spektr-RG (also called Spectrum-X-Gamma, SRG, SXG) launched ... Russian–German high-energy astrophysics space observatory.


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Revision as of 06:47, 17 July 2019

  • 100 BC: Roman general and statesman Julius Caesar born. He will play a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire.

    100 BC: Roman general and statesman Julius Caesar born. He will play a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire.

  • 1527: Mathematician, astronomer, and astrologer John Dee born. He will achieve high status as a scholar and play a role in Elizabethan politics.

    1527: Mathematician, astronomer, and astrologer John Dee born. He will achieve high status as a scholar and play a role in Elizabethan politics.

  • 1956: John McCarthy (Dartmouth College), Marvin Minsky (MIT), Claude Shannon (Bell Labs), and Nathaniel Rochester (IBM) assemble the first coordinated research meeting on the topic of "Artificial intelligence" at Dartmouth College in Hanover, NH. USA.

    1956: John McCarthy (Dartmouth College), Marvin Minsky (MIT), Claude Shannon (Bell Labs), and Nathaniel Rochester (IBM) assemble the first coordinated research meeting on the topic of "Artificial intelligence" at Dartmouth College in Hanover, NH. USA.

  • 1972: Signed first edition of Skip Digits, Conductor sells for one million dollars; House Democrats say money trail leads to Richard Nixon.

    1972: Signed first edition of Skip Digits, Conductor sells for one million dollars; House Democrats say money trail leads to Richard Nixon.

  • 1973: Watergate scandal (nonfiction): Alexander Butterfield reveals the existence of the "Nixon tapes" to the special Senate committee investigating the Watergate break-in.

    1973: Watergate scandal (nonfiction): Alexander Butterfield reveals the existence of the "Nixon tapes" to the special Senate committee investigating the Watergate break-in.

  • 1974: Mathematician and crime-fighter Hilary Putnam publishes his landmark paper arguing that mathematics is not purely logical, but "quasi-empirical", and that we should beware the possibility of "quasi-empirical crimes".

    1974: Mathematician and crime-fighter Hilary Putnam publishes his landmark paper arguing that mathematics is not purely logical, but "quasi-empirical", and that we should beware the possibility of "quasi-empirical crimes".

  • 2015: Steganographic analysis of Blue City Sunset reveals "at least five hundred and twelve kilobytes" of previously unknown Gnomon algorithm functions.

    2015: Steganographic analysis of Blue City Sunset reveals "at least five hundred and twelve kilobytes" of previously unknown Gnomon algorithm functions.

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