Template:Selected anniversaries/September 23: Difference between revisions

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|| *** DONE: Pics ***
|| *** DONE: Pics ***
File:Hermann_der_Lahme.gif|link=Hermann of Reichenau (nonfiction)|1044: Composer, mathematician, astronomer, and [[Gnomon algorithm]] theorist [[Hermann of Reichenau (nonfiction)|Hermann of Reichenau]] uses an improvised astrolabe to defeat his rival [[Anarchimedes]] in mathematical-astronomical combat.


||1596: Joan Blaeu born ... cartographer born in Alkmaar, the son of cartographer Willem Blaeu. Pic.
||1596: Joan Blaeu born ... cartographer born in Alkmaar, the son of cartographer Willem Blaeu. Pic.
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File:Urbain Le Verrier.jpg|link=Urbain Le Verrier (nonfiction)|1877: Mathematician and astronomer [[Urbain Le Verrier (nonfiction)|Urbain Le Verrier]] dies.  He  predicted the existence and position of Neptune using only mathematics, an event widely regarded as one of the most remarkable moments of 19th century science.
File:Urbain Le Verrier.jpg|link=Urbain Le Verrier (nonfiction)|1877: Mathematician and astronomer [[Urbain Le Verrier (nonfiction)|Urbain Le Verrier]] dies.  He  predicted the existence and position of Neptune using only mathematics, an event widely regarded as one of the most remarkable moments of 19th century science.
File:Maria Mitchell.jpg|link=Maria Mitchell (nonfiction)|1878: Astronomer and crime-fighter [[Maria Mitchell (nonfiction)|Maria Mitchell]] publishes new class of [[Gnomon algorithm functions]] which predict and prevent astronomical [[crimes against mathematical constants]].


||1882: Friedrich Wöhler dies ... chemist, best known for his synthesis of urea, but also the first to isolate several chemical elements. Pic.
||1882: Friedrich Wöhler dies ... chemist, best known for his synthesis of urea, but also the first to isolate several chemical elements. Pic.
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||1893: Thomas Hawksley dies ... engineer and academic ... early water supply and coal gas engineering projects. Pic.
||1893: Thomas Hawksley dies ... engineer and academic ... early water supply and coal gas engineering projects. Pic.


||1902: Su Buqing born ... mathematician and academic. Pic search yes: https://www.google.com/search?q=Su+Buqing
||1902: Su Buqing born ... mathematician and academic. Pic search yes.
 
||1902: John Wesley Powell dies ... soldier, geologist, and explorer. Pic.


||1910: Lamberto Cesari born ... mathematician naturalized in the United States, known for his work on the theory of surface area, the theory of functions of bounded variation, the theory of optimal control and on the stability theory of dynamical systems: in particular, by extending the concept of Tonelli plane variation, he succeeded in introducing the class of functions of bounded variation of several variables in its full generality. Pic.
||1910: Lamberto Cesari born ... mathematician naturalized in the United States, known for his work on the theory of surface area, the theory of functions of bounded variation, the theory of optimal control and on the stability theory of dynamical systems: in particular, by extending the concept of Tonelli plane variation, he succeeded in introducing the class of functions of bounded variation of several variables in its full generality. Pic.
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File:Clifford Shull 1949.jpg|link=Clifford Shull (nonfiction)|1915: Physicist and academic [[Clifford Shull (nonfiction)|Clifford Shull]] born. He will share the 1994 Nobel Prize in Physics with Bertram Brockhouse for the development of the neutron scattering technique.
File:Clifford Shull 1949.jpg|link=Clifford Shull (nonfiction)|1915: Physicist and academic [[Clifford Shull (nonfiction)|Clifford Shull]] born. He will share the 1994 Nobel Prize in Physics with Bertram Brockhouse for the development of the neutron scattering technique.


||1915: George Alfred Barnard born ... statistician known particularly for his work on the foundations of statistics and on quality control. Pic search yes: https://www.google.com/search?q=George+Barnard+statistician
||1915: George Alfred Barnard born ... statistician known particularly for his work on the foundations of statistics and on quality control. Pic search.


||1919: Ernst Heinrich Bruns dies ... German mathematician and astronomer, who also contributed to the development of the field of theoretical geodesy. Pic.
||1919: Ernst Heinrich Bruns dies ... German mathematician and astronomer, who also contributed to the development of the field of theoretical geodesy. Pic.
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||1925: Engineer and inventor George Laurer born. He held 25 patents and developed the Universal Product Code (UPC) in 1973. He devised the coding and pattern used for the UPC, based on Joe Woodland's more general idea for barcodes. Pic.
||1925: Engineer and inventor George Laurer born. He held 25 patents and developed the Universal Product Code (UPC) in 1973. He devised the coding and pattern used for the UPC, based on Joe Woodland's more general idea for barcodes. Pic.


||1926: André Cassagnes born ... toy maker, created the Etch A Sketch. Pic search: https://www.google.com/search?q=Andr%C3%A9+Cassagnes
||1926: André Cassagnes born ... toy maker, created the Etch A Sketch. Pic search.


||1926: Paul Kammerer dies ... biologist, he claimed to have produced experimental evidence that acquired traits could be inherited. Almost all of Kammerer's experiments involved forcing various amphibians to breed in environments that were radically different from their native habitat to demonstrate Lamarkian inheritance. (This is the idea that what one acquires during one's lifetime is passed on to that person's offspring. If you play guitar, your children will have nimble fingers. Each generation builds upon the past and continues to improve.) When later accused of faking exceptional results with the midwife toad, during a time of depression, he shot himself. Pic.
||1926: Paul Kammerer dies ... biologist, he claimed to have produced experimental evidence that acquired traits could be inherited. Almost all of Kammerer's experiments involved forcing various amphibians to breed in environments that were radically different from their native habitat to demonstrate Lamarkian inheritance. (This is the idea that what one acquires during one's lifetime is passed on to that person's offspring. If you play guitar, your children will have nimble fingers. Each generation builds upon the past and continues to improve.) When later accused of faking exceptional results with the midwife toad, during a time of depression, he shot himself. Pic.
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||1971: James Waddell Alexander II dies ... mathematician and topologist. Pic.
||1971: James Waddell Alexander II dies ... mathematician and topologist. Pic.
||1972: President Ferdinand Marcos announced that he had placed the entirety of the Philippines under martial law. This marked the beginning of a 14-year period of one-man rule which would effectively last until Marcos was exiled from the country on February 24, 1986. Even though the formal document proclaiming martial law – Proclamation No. 1081, which was dated September 21, 1972 – was formally lifted on January 17, 1981, Marcos retained essentially all of his powers as dictator until he was ousted. Pic.


||1974: Willem van der Woude dies ... mathematician. Pic.
||1974: Willem van der Woude dies ... mathematician. Pic.
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||2004: Bryce Seligman DeWitt dies ... theoretical physicist who studied gravity and field theories. Pic.
||2004: Bryce Seligman DeWitt dies ... theoretical physicist who studied gravity and field theories. Pic.


||2017: Lester Randolph Ford Jr. dies ... mathematician specializing in network flow problems. Pic search: https://www.google.com/search?q=Lester+Randolph+Ford+Jr.
||2017: Lester Randolph Ford Jr. dies ... mathematician specializing in network flow problems. Pic search.


Violet_Spiral_2.jpg|link=Violet Spiral 2 (nonfiction)|2018: Steganographic analysis of ''[[Violet Spiral 2 (nonfiction)|Violet Spiral 2]]'' unexpectedly reveals "between seven hundred and eight hundred kilobytes" of previously unknown [[Gnomon algorithm]]-based [[Nomogram (nonfiction)|nomograms]].


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Latest revision as of 13:05, 7 February 2022

  • 1785: Lawyer, translator, and inventor Per Georg Scheutz born. He will invent the Scheutzian calculation engine, based on Charles Babbage's difference engine.

    1785: Lawyer, translator, and inventor Per Georg Scheutz born. He will invent the Scheutzian calculation engine, based on Charles Babbage's difference engine.

  • 1877: Mathematician and astronomer Urbain Le Verrier dies. He predicted the existence and position of Neptune using only mathematics, an event widely regarded as one of the most remarkable moments of 19th century science.

    1877: Mathematician and astronomer Urbain Le Verrier dies. He predicted the existence and position of Neptune using only mathematics, an event widely regarded as one of the most remarkable moments of 19th century science.

  • 1884: Patent filed for Herman Hollerith's tabulating machine. Hollerith's machines will be used in the 1890 US Census and in 1924 he and others will form the company that will become IBM.

    1884: Patent filed for Herman Hollerith's tabulating machine. Hollerith's machines will be used in the 1890 US Census and in 1924 he and others will form the company that will become IBM.

  • 1915: Physicist and academic Clifford Shull born. He will share the 1994 Nobel Prize in Physics with Bertram Brockhouse for the development of the neutron scattering technique.

    1915: Physicist and academic Clifford Shull born. He will share the 1994 Nobel Prize in Physics with Bertram Brockhouse for the development of the neutron scattering technique.

  • 1938: Mathematician and engineer Philbert Maurice d’Ocagne dies. He founded the field of nomography, the graphic computation of algebraic equations, on charts which he called nomograms.

    1938: Mathematician and engineer Philbert Maurice d’Ocagne dies. He founded the field of nomography, the graphic computation of algebraic equations, on charts which he called nomograms.

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