Template:Selected anniversaries/July 31: Difference between revisions

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||781: The oldest recorded eruption of Mount Fuji.
||781: The oldest recorded eruption of Mount Fuji.


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||1804: Louis Necker dies ... mathematician, physicist, professor and a banker in Paris. He was the elder brother of Jacques Necker, minister of Finance in France when the French Revolution broke out. Pic.
||1804: Louis Necker dies ... mathematician, physicist, professor and a banker in Paris. He was the elder brother of Jacques Necker, minister of Finance in France when the French Revolution broke out. Pic.
File:Jean-Antoine Chaptal.jpg|link=Jean-Antoine-Claude Chaptal (nonfiction)|1822: Chemist, physician, agronomist, industrialist, statesman, educator, and philanthropist [[Jean-Antoine-Claude Chaptal (nonfiction)|Jean-Antoine-Claude Chaptal]] endows organization dedicated to detecting and preventing [[crimes against mathematical constants]].


||1858: Richard Dixon Oldham born ... seismologist and geologist ... Oldham made the first clear identification of the separate arrivals of P-waves, S-waves and surface waves on seismograms and the first clear evidence that the Earth has a central core. Pic.
||1858: Richard Dixon Oldham born ... seismologist and geologist ... Oldham made the first clear identification of the separate arrivals of P-waves, S-waves and surface waves on seismograms and the first clear evidence that the Earth has a central core. Pic.
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||1945: Operation Sabre: was a Royal Navy military operation in World War Two which involved cutting the Japanese submarine communications cable linking Saigon and Singapore ... operating from an X-Craft midget submarine in the Saigon River. Pic (submarine in museum).
||1945: Operation Sabre: was a Royal Navy military operation in World War Two which involved cutting the Japanese submarine communications cable linking Saigon and Singapore ... operating from an X-Craft midget submarine in the Saigon River. Pic (submarine in museum).


||1953: Nikolay Dimitrievich Zelinsky dies ... chemist, academician of the Academy of Sciences of USSR (1929). Pic.
||1953: Nikolay Dimitrievich Zelinsky dies ... chemist, academician of the Academy of Sciences of USSR (1929). Pic. Zelinsky studied at the University of Odessa and at the universities of Leipzig and Göttingen in Germany. Zelinsky was one of the founders of theory on organic catalysis. He is the inventor of the first effective filtering activated charcoal gas mask in the world (1915).
 
Zelinsky studied at the University of Odessa and at the universities of Leipzig and Göttingen in Germany. Zelinsky was one of the founders of theory on organic catalysis. He is the inventor of the first effective filtering activated charcoal gas mask in the world (1915).


||1957: Quirino Majorana dies ... experimental physicist who investigated a wide range of phenomena  
||1957: Quirino Majorana dies ... experimental physicist who investigated a wide range of phenomena  
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||2000: Thomas Wolff dies ... mathematician, working primarily in the fields of harmonic analysis, complex analysis, and partial differential equations. Pic.
||2000: Thomas Wolff dies ... mathematician, working primarily in the fields of harmonic analysis, complex analysis, and partial differential equations. Pic.
File:Portable envy clock generator.jpg|link=Portable envy|2003: [[Portable envy]] components linked to [[crimes against mathematical constants]].


||2016: Seymour Papert dies ... mathematician, computer scientist, and educator, who spent most of his career teaching and researching at MIT. He was one of the pioneers of artificial intelligence, and of the constructionist movement in education. He was a co-inventor of the Logo programming language. Pic.
||2016: Seymour Papert dies ... mathematician, computer scientist, and educator, who spent most of his career teaching and researching at MIT. He was one of the pioneers of artificial intelligence, and of the constructionist movement in education. He was a co-inventor of the Logo programming language. Pic.
File:Green Spiral 5.jpg|link=Green Spiral 5 (nonfiction)|2018: Chromatographic analysis of ''[[Green Spiral 5 (nonfiction)|Green Spiral 5]]'' reveals "at least three, possibly as many as five" previously unknown shades of [[Green (nonfiction)|green]]."


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Latest revision as of 18:50, 26 January 2022