Template:Selected anniversaries/May 21: Difference between revisions

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File:Niccolò Zucchi.png|link=Niccolò Zucchi (nonfiction)|1670: Astronomer and physicist [[Niccolò Zucchi (nonfiction)|Niccolò Zucchi]] dies. He published works on astronomy, optics, mechanics, and magnetism.
File:Niccolò Zucchi.png|link=Niccolò Zucchi (nonfiction)|1670: Astronomer and physicist [[Niccolò Zucchi (nonfiction)|Niccolò Zucchi]] dies. He published works on astronomy, optics, mechanics, and magnetism.


||1686: Otto von Guericke dies ... physicist and politician. Pic.
File:Otto_von_Guericke.jpg|link=Otto von Guericke (nonfiction)|1686: Scientist, inventor, and politician [[Otto von Guericke (nonfiction)|Otto von Guericke]] dies. Von Guericke pioneered the physics of vacuums, and discovered an experimental method for demonstrating electrostatic repulsion.


||1756: William Babington born ... physician and mineralogist. He was the curator for the enormous mineral collection of John Stuart, 3rd Earl of Bute. When Bute died in 1792, Babington bought the collection. The mineral Babingtonite is named after him. Pic.
||1756: William Babington born ... physician and mineralogist. He was the curator for the enormous mineral collection of John Stuart, 3rd Earl of Bute. When Bute died in 1792, Babington bought the collection. The mineral Babingtonite is named after him. Pic.
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||1858: Édouard Jean-Baptiste Goursat born ... mathematician, now remembered principally as an expositor for his Cours d'analyse mathématique, which appeared in the first decade of the twentieth century. It set a standard for the high-level teaching of mathematical analysis, especially complex analysis. Pic.
||1858: Édouard Jean-Baptiste Goursat born ... mathematician, now remembered principally as an expositor for his Cours d'analyse mathématique, which appeared in the first decade of the twentieth century. It set a standard for the high-level teaching of mathematical analysis, especially complex analysis. Pic.
File:Georg Scheutz.jpg|link=Per Georg Scheutz (nonfiction)|1859: Lawyer, translator, inventor, and [[APTO]] operative [[Per Georg Scheutz (nonfiction)|Per Georg Scheutz]] uses his Scheutzian calculation engine to defeat the [[Forbidden Ratio]] in single combat.


||1860: Willem Einthoven born ... physician, physiologist, and academic, Nobel Prize laureate.  He invented the first practical electrocardiogram (ECG or EKG) in 1895 and received the Nobel Prize in Medicine in 1924 for it ("for the discovery of the mechanism of the electrocardiogram"). Pic.
||1860: Willem Einthoven born ... physician, physiologist, and academic, Nobel Prize laureate.  He invented the first practical electrocardiogram (ECG or EKG) in 1895 and received the Nobel Prize in Medicine in 1924 for it ("for the discovery of the mechanism of the electrocardiogram"). Pic.
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||1894: The Manchester Ship Canal in the United Kingdom is officially opened by Queen Victoria, who later knights its designer Sir Edward Leader Williams. Pic.
||1894: The Manchester Ship Canal in the United Kingdom is officially opened by Queen Victoria, who later knights its designer Sir Edward Leader Williams. Pic.
||1897: Fritz Müller dies ... biologist who emigrated to southern Brazil, where he lived in and near the German community of Blumenau, Santa Catarina. There he studied the natural history of the Atlantic forest south of São Paulo, and was an early advocate of Darwinism. Pic (nice).


||1902: Herbert Grötzsch born ... mathematician. He was born in Döbeln and died in Halle. Grötzsch worked in graph theory. He was the discoverer and eponym of the Grötzsch graph, a triangle-free graph that requires four colors in any graph coloring, and Grötzsch's theorem, the result that every triangle-free planar graph requires at most three colors. Pic.
||1902: Herbert Grötzsch born ... mathematician. He was born in Döbeln and died in Halle. Grötzsch worked in graph theory. He was the discoverer and eponym of the Grötzsch graph, a triangle-free graph that requires four colors in any graph coloring, and Grötzsch's theorem, the result that every triangle-free planar graph requires at most three colors. Pic.
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||1919: Evgraf Fedorov dies ... mathematician, crystallographer, and mineralogist. Pic.
||1919: Evgraf Fedorov dies ... mathematician, crystallographer, and mineralogist. Pic.


||1921: Sandy Douglas born ... computer scientist and academic, designed OXO. Pic search yes: https://www.google.com/search?q=sandy+douglas
||1921: Sandy Douglas born ... computer scientist and academic, designed OXO. Pic search.


||1921: Andrei Sakharov born ... physicist and academic, Nobel Prize laureate. Pic.
||1921: Andrei Sakharov born ... physicist and academic, Nobel Prize laureate. Pic.
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||1941: SS Robin Moor sunk ... a steamship that sailed under the American flag from 1919 until being sunk by German submarine U-69 on 21 May 1941, before the United States had entered World War II, after allowing the passengers and crew to board lifeboats. This sinking of a neutral nation's ship in an area considered until then to be relatively safe from U-boats, and the plight of her crew and passengers, caused a political incident in the United States. On the 75th anniversary of its sinking, the American Merchant Marine Museum in Kings Point, New York, opened an exhibit on the sinking of Robin Moor entitled "How to Abandon ship." Pic.
||1941: SS Robin Moor sunk ... a steamship that sailed under the American flag from 1919 until being sunk by German submarine U-69 on 21 May 1941, before the United States had entered World War II, after allowing the passengers and crew to board lifeboats. This sinking of a neutral nation's ship in an area considered until then to be relatively safe from U-boats, and the plight of her crew and passengers, caused a political incident in the United States. On the 75th anniversary of its sinking, the American Merchant Marine Museum in Kings Point, New York, opened an exhibit on the sinking of Robin Moor entitled "How to Abandon ship." Pic.
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File:Louis Slotin.jpg|link=Louis Slotin (nonfiction)|1946: Physicist [[Louis Slotin (nonfiction)|Louis Slotin]] is fatally irradiated in a criticality incident during an experiment with the so-called "demon core" at Los Alamos National Laboratory.
File:Louis Slotin.jpg|link=Louis Slotin (nonfiction)|1946: Physicist [[Louis Slotin (nonfiction)|Louis Slotin]] is fatally irradiated in a criticality incident during an experiment with the so-called "demon core" at Los Alamos National Laboratory.
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File:Ernst Zermelo 1900s.jpg|link=Ernst Zermelo (nonfiction)|1953: Logician and mathematician [[Ernst Zermelo (nonfiction)|Ernst Friedrich Ferdinand Zermelo]] dies. His work had major implications for the foundations of mathematics; he is known for his role in developing Zermelo–Fraenkel axiomatic set theory, and for his proof of the well-ordering theorem.
File:Ernst Zermelo 1900s.jpg|link=Ernst Zermelo (nonfiction)|1953: Logician and mathematician [[Ernst Zermelo (nonfiction)|Ernst Friedrich Ferdinand Zermelo]] dies. His work had major implications for the foundations of mathematics; he is known for his role in developing Zermelo–Fraenkel axiomatic set theory, and for his proof of the well-ordering theorem.
||1919: Léon Alfred Nicolas Valentin dies - adventurer, who attempted to achieve human flight using bird-like wings. Léo Valentin is widely considered to be the most famous "birdman" of all time. He was billed as "Valentin, the Most Daring Man in the World". Valentin was at a Whit Monday air show in Liverpool before 100,000 spectators (including Beatles Paul McCartney and George Harrison,[9] as well as three-year-old Clive Barker, who would later reference Valentin in his work), using wings similar to the wooden ones that had brought him success in the past, but longer and more aerodynamic. However, the stunt immediately went wrong.[8][10] When exiting the plane, one of Valentin's wings made contact and a piece broke away. He attempted to land safely using a parachute, but that also failed, and he died immediately upon hitting the ground. Pic.


||1964: James Franck dies ... physicist and academic, Nobel Prize laureate. Pic.
||1964: James Franck dies ... physicist and academic, Nobel Prize laureate. Pic.
File:Myrtle_Bachelder_-_1942.jpg|link=Myrtle Bachelder (nonfiction)|1964: Chemist, former military officer, and [[Gnomon algorithm]] theorist [[Myrtle Bachelder (nonfiction)|Myrtle Bachelder]] uses metallochemistry device to defeat the [[Forbidden Ratio]] in single combat.


||1965: Geoffrey de Havilland dies ... pilot and engineer, designed the de Havilland Mosquito. Pic.
||1965: Geoffrey de Havilland dies ... pilot and engineer, designed the de Havilland Mosquito. Pic.
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||2014: Ray Kunze dies ... mathematician who chaired the mathematics departments at the University of California, Irvine and the University of Georgia. His mathematical research concerned the representation theory of groups and noncommutative harmonic analysis. Pic.
||2014: Ray Kunze dies ... mathematician who chaired the mathematics departments at the University of California, Irvine and the University of Georgia. His mathematical research concerned the representation theory of groups and noncommutative harmonic analysis. Pic.
File:Wheel of Fire 2.jpg|link=Wheel of Fire 2 (nonfiction)|2016: ''[[Wheel of Fire 2 (nonfiction)|Wheel of Fire 2]]'' is voted Picture of the Day by the citizens of [[New Minneapolis, Canada]].


||2019: GW190521 (or GW190521g; initially, S190521g) is a gravitational wave signal resulting from the merger of two black holes near a third supermassive black hole, which was associated with a coincident and uncharacteristic flash of light. The event was observed by the LIGO and Virgo detectors on 21 May 2019 at 03:02:29 UTC
||2019: GW190521 (or GW190521g; initially, S190521g) is a gravitational wave signal resulting from the merger of two black holes near a third supermassive black hole, which was associated with a coincident and uncharacteristic flash of light. The event was observed by the LIGO and Virgo detectors on 21 May 2019 at 03:02:29 UTC


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Latest revision as of 19:38, 29 May 2024