Template:Selected anniversaries/October 13: Difference between revisions

Revision as of 14:15, 9 September 2018

1687: Astronomer, lens-maker, and academic Geminiano Montanari dies. He made the observation that Algol in the constellation of Perseus varies in brightness.
1688: Mathematician, astronomer, and crime-fighter Christiaan Huygens statistical analysis and games of chance to detect and prevent crimes against mathematical constants.
1715: Priest and philosopher Nicolas Malebranche dies. He was instrumental in introducing and disseminating the work of René Descartes and Gottfried Wilhelm Leibniz in France.
1772: Using the San Pietro scrying engine, astronomer Charles Messier previews his discovery of a "galactic whirlpool" with a temporal accuracy of "within a year".
1773: The Whirlpool Galaxy is discovered by Charles Messier.
1774: The Custodian prevents the Whirlpool Galaxy Gang from committing astronomical crimes against mathematical constants.
1890: Mathematician Georg Feigl born. He will work on the foundations of geometry and topology, studying fixed point theorems for n-dimensional manifolds. Feigl will be one of the initial authors of the Mathematisches Wörterbuch.
1989: Lorenz system develops self-awareness, experiences irrational fear of the number thirteen.

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 ||1761: Gabriele Manfredi dies ... mathematician who undertook important work in the field of calculus.
+File:San Pietro scrying engine.png|link=San Pietro scrying engine|1772: Using the [[San Pietro scrying engine]], astronomer [[Charles Messier (nonfiction)|Charles Messier]] previews his discovery of a "galactic whirlpool" with a temporal accuracy of "within a year".
 File:Charles Messier.jpg|link=Charles Messier (nonfiction)|1773: The Whirlpool Galaxy is discovered by [[Charles Messier (nonfiction)|Charles Messier]].