Template:Selected anniversaries/September 23: Difference between revisions

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||Stefano degli Angeli (b. September 23, 1623) was an Italian mathematician, philosopher, and Jesuat.
||1623: Stefano degli Angeli dies ... mathematician, philosopher, and Jesuat.


||1773 – Johan Ernst Gunnerus, Norwegian bishop and botanist (b. 1718) - first to suggest Northern Lights caused by the sun
||1773: Johan Ernst Gunnerus born ... bishop and botanist ... first to suggest Northern Lights caused by the sun


||1785: Per Georg Scheutz born.
||1785: Per Georg Scheutz born ... lawyer, translator, and inventor, who is now best known for his pioneering work in computer technology. Pic.


||1791 – Johann Franz Encke, German astronomer and academic (d. 1865) Johann Franz Encke (German pronunciation: [ˈjoːhan ˈfʁants ˈɛŋkə]; 23 September 1791 – 26 August 1865) was a German astronomer. Among his activities, he worked on the calculation of the periods of comets and asteroids, measured the distance from the earth to the sun, and made observations of the planet Saturn.
||1791: Johann Franz Encke born ... astronomer and academic ... he worked on the calculation of the periods of comets and asteroids, measured the distance from the earth to the sun, and made observations of the planet Saturn.
   
   
||1819 – Hippolyte Fizeau, French physicist and academic (d. 1896) Armand Hippolyte Louis Fizeau FRS FRSE MIF[clarification needed] (23 September 1819 – 18 September 1896) was a French physicist, best known for measuring the speed of light in the namesake Fizeau experiment.
||1819: Armand Hippolyte Louis Fizeau born ... physicist and academic ... best known for measuring the speed of light in the namesake Fizeau experiment.


||1846 – Astronomers Urbain Jean Joseph Le Verrier, John Couch Adams and Johann Gottfried Galle collaborate on the discovery of Neptune.
||1846: Astronomers Urbain Jean Joseph Le Verrier, John Couch Adams and Johann Gottfried Galle collaborate on the discovery of Neptune.


||Hugo von Seeliger (b. 1849), also known as Hugo Hans Ritter von Seeliger, was a German astronomer, often considered the most important astronomer of his day.
||1849: Hugo von Seeliger born ... astronomer, often considered the most important astronomer of his day.


||1851 – Ellen Hayes, American mathematician and astronomer (d. 1930)
||1851: Ellen Hayes born ... mathematician and astronomer.


||Charles Soret (born 23 September 1854) was a Swiss physicist and chemist. He is known for his work on thermodiffusion (the so-called Soret effect).
||1854: Charles Soret born ... physicist and chemist. He is known for his work on thermodiffusion (the so-called Soret effect).


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.
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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]].
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]].


||Friedrich Wöhler (d. 23 September 1882) was a German chemist, best known for his synthesis of urea, but also the first to isolate several chemical elements.
||1882: Friedrich Wöhler dies ... chemist, best known for his synthesis of urea, but also the first to isolate several chemical elements.


||Nicolas Minorsky (b. 23 September 1885) was a Russian American control theory mathematician, engineer and applied scientist. He is best known for his theoretical analysis and first proposed application of PID controllers in the automatic steering systems for U.S. Navy ships. Pic.
||1885: Nicolas Minorsky born ... control theory mathematician, engineer and applied scientist. He is best known for his theoretical analysis and first proposed application of PID controllers in the automatic steering systems for U.S. Navy ships. Pic.


||1902 – Su Buqing, Chinese mathematician and academic (d. 2003)
||1902: Su Buqing born ... mathematician and academic.


||Lamberto Cesari (b. 23 September 1910) was an Italian 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.
||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.


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.


||Ernst Heinrich Bruns (d. 23 September 1919) was a 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.


||1926 – André Cassagnes, French toy maker, created the Etch A Sketch (d. 2013)
||1926: André Cassagnes born ... toy maker, created the Etch A Sketch.


||Paul Kammerer (d. 23 September 1926) was an Austrian biologist who studied and advocated Lamarckism.
||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.


||1929 – Richard Adolf Zsigmondy, Austrian-German chemist, physicist, and academic, Nobel Prize laureate (b. 1865)
||1929: Richard Adolf Zsigmondy dies ... chemist, physicist, and academic, Nobel Prize laureate.


||Lloyd John Old (b. September 23, 1933) was one of the founders and standard-bearers of the field of cancer immunology.
||1933: Lloyd John Old born ... one of the founders and standard-bearers of the field of cancer immunology.


File:Maurice d'Ocagne.jpg|link=Philbert Maurice d’Ocagne (nonfiction)|1938: Mathematician and engineer [[Philbert Maurice d’Ocagne (nonfiction)|Philbert Maurice d’Ocagne]] dies.  He founded the field of nomography, the graphic computation of algebraic equations, on charts which he called [[Nomogram (nonfiction)|nomograms]].
File:Maurice d'Ocagne.jpg|link=Philbert Maurice d’Ocagne (nonfiction)|1938: Mathematician and engineer [[Philbert Maurice d’Ocagne (nonfiction)|Philbert Maurice d’Ocagne]] dies.  He founded the field of nomography, the graphic computation of algebraic equations, on charts which he called [[Nomogram (nonfiction)|nomograms]].


||Gennady Chibisov (b. September 23, 1946) was a Soviet/Russian cosmologist. He obtained his PhD in 1972, from the Moscow Institute of Physics and Technology, with a thesis entitled "Entropy perturbations in cosmology". He is best known for his 1981 paper on the origin of cosmological density perturbations from quantum fluctuations, coauthored with Viatcheslav Mukhanov. This is the earliest of a number of calculations addressing the origin of density fluctuations in inflationary cosmology, which is the most common hypothesis for the origin of the expanding universe and the structure within it. Pic.  
||1946: Gennady Chibisov born ... cosmologist. He obtained his PhD in 1972, from the Moscow Institute of Physics and Technology, with a thesis entitled "Entropy perturbations in cosmology". He is best known for his 1981 paper on the origin of cosmological density perturbations from quantum fluctuations, coauthored with Viatcheslav Mukhanov. This is the earliest of a number of calculations addressing the origin of density fluctuations in inflationary cosmology, which is the most common hypothesis for the origin of the expanding universe and the structure within it. Pic.  


||1971 – James Waddell Alexander II, American mathematician and topologist (b. 1888)
||1971: James Waddell Alexander II dies ... mathematician and topologist.


||Willem van der Woude (d. 23 September 1974) was a Dutch mathematician. Pic.
||1974: Willem van der Woude dies ... mathematician. Pic.


||1999 – NASA announces that it has lost contact with the Mars Climate Orbiter.
||1999: NASA announces that it has lost contact with the Mars Climate Orbiter.


||Bryce Seligman DeWitt (d. September 23, 2004) was an American theoretical physicist who studied gravity and field theories. Pic.
||2004: Bryce Seligman DeWitt dies ... theoretical physicist who studied gravity and field theories. Pic.


||Lester Randolph Ford Jr. (d. February 26, 2017) was an American mathematician specializing in network flow problems.
||2017: Lester Randolph Ford Jr. dies ... mathematician specializing in network flow problems.


File:Pin Man number 1 cover art.jpg|link=Pin Man (nonfiction)|2018: [[Pin Man (nonfiction)|Pin Man #1]] is "a work in progress," says author [[Karl Jones (nonfiction)|Karl Jones]].  "I have characters sketches, and cover art, but I'm still thinking about the stories."
File:Pin Man number 1 cover art.jpg|link=Pin Man (nonfiction)|2018: [[Pin Man (nonfiction)|Pin Man #1]] is "a work in progress," says author [[Karl Jones (nonfiction)|Karl Jones]].  "I have characters sketches, and cover art, but I'm still thinking about the stories."
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Revision as of 09:47, 15 August 2018

  • 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.

  • 1878: Astronomer and crime-fighter Maria Mitchell publishes new class of Gnomon algorithm functions which predict and prevent astronomical crimes against mathematical constants.

    1878: Astronomer and crime-fighter Maria Mitchell publishes new class of Gnomon algorithm functions which predict and prevent astronomical crimes against mathematical constants.

  • 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.

  • 2018: Pin Man #1 is "a work in progress," says author Karl Jones. "I have characters sketches, and cover art, but I'm still thinking about the stories."

    2018: Pin Man #1 is "a work in progress," says author Karl Jones. "I have characters sketches, and cover art, but I'm still thinking about the stories."

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