Template:Selected anniversaries/February 11: Difference between revisions
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||1801: Giuseppe Piazzi made a 24th observation of the position of Ceres, the asteroid he discovered between the orbits of Mars and Jupiter, on 1 Jan 1801. It was the first and largest of the dwarf planets now known. After this, it moved into the light of the Sun, and was lost to view for most of the rest of the year. To mathematically relocate Ceres, Carl Gauss, age 24, took up the challenge to calculate its orbital path, based on the limited number of observations available. His method was tedious, requiring 100 hours of calculation. He began with a rough approximation for the unknown orbit, and then used it to produce a refinement, which became the subject of another improvement.. And so on. Astronomers using them found his results in close agreement as they located Ceres again 25 Nov-31 Dec 1801.« *TIS https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-11.html | ||1801: Giuseppe Piazzi made a 24th observation of the position of Ceres, the asteroid he discovered between the orbits of Mars and Jupiter, on 1 Jan 1801. It was the first and largest of the dwarf planets now known. After this, it moved into the light of the Sun, and was lost to view for most of the rest of the year. To mathematically relocate Ceres, Carl Gauss, age 24, took up the challenge to calculate its orbital path, based on the limited number of observations available. His method was tedious, requiring 100 hours of calculation. He began with a rough approximation for the unknown orbit, and then used it to produce a refinement, which became the subject of another improvement.. And so on. Astronomers using them found his results in close agreement as they located Ceres again 25 Nov-31 Dec 1801.« *TIS https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-11.html | ||
||1808: Jesse Fell burns anthracite on an open grate as an experiment in heating homes with coal. No DOB/DOD. Pic search | ||1808: Jesse Fell burns anthracite on an open grate as an experiment in heating homes with coal. No DOB/DOD. Pic search. | ||
||1813: Anders Gustaf Ekeberg dies ... chemist who discovered tantalum in 1802. Pic. | ||1813: Anders Gustaf Ekeberg dies ... chemist who discovered tantalum in 1802. Pic. | ||
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||1862: Francis Sowerby Macaulay born ... mathematician who made significant contributions to algebraic geometry. Cohen–Macaulay rings, Macaulay duality, the Macaulay resultant are named after him. Pic. | ||1862: Francis Sowerby Macaulay born ... mathematician who made significant contributions to algebraic geometry. Cohen–Macaulay rings, Macaulay duality, the Macaulay resultant are named after him. Pic. | ||
||1864: Louis Bouveault born ... chemist ... known for the Bouveault aldehyde synthesis and the Bouveault–Blanc reduction. Pic search scanty | ||1864: Louis Bouveault born ... chemist ... known for the Bouveault aldehyde synthesis and the Bouveault–Blanc reduction. Pic search scanty. | ||
||1865: Anders Wiman born ... mathematician .... His main focus of his research was algebraic geometry and applications of group theory to geometry and function theory. He introduced Wiman's sextic curve. Pic. | ||1865: Anders Wiman born ... mathematician .... His main focus of his research was algebraic geometry and applications of group theory to geometry and function theory. He introduced Wiman's sextic curve. Pic. | ||
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||1868: Léon Foucault dies ... physicist and academic ... best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and is credited with naming the gyroscope. Pic. | ||1868: Léon Foucault dies ... physicist and academic ... best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and is credited with naming the gyroscope. Pic. | ||
||1891: Ivan Privalov born ... mathematician best known for his work on analytic functions. studied analytic functions in the vicinity of singular points by means of measure theory and Lebesgue integrals. He also obtained important results on conformal mappings showing that angles were preserved on the boundary almost everywhere. In 1934 he studied subharmonic functions, building on the work of Riesz. He published the monograph Subharmonic Functions in 1937 which gave the general theory of these functions and contained many results from his papers published between 1934 and 1937. *SAU Pic search | ||1891: Ivan Privalov born ... mathematician best known for his work on analytic functions. studied analytic functions in the vicinity of singular points by means of measure theory and Lebesgue integrals. He also obtained important results on conformal mappings showing that angles were preserved on the boundary almost everywhere. In 1934 he studied subharmonic functions, building on the work of Riesz. He published the monograph Subharmonic Functions in 1937 which gave the general theory of these functions and contained many results from his papers published between 1934 and 1937. *SAU Pic search. | ||
||1894: Izaak Kolthoff born ... chemist and academic. Pic (cool chem!). | |||
||1897: Emil Leon Post born ... mathematician and logician. Pic. | ||1897: Emil Leon Post born ... mathematician and logician. Pic. | ||
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||1920: Ernst Paul Specker born ... mathematician. Much of his most influential work was on Quine’s New Foundations, a set theory with a universal set, but he is most famous for the Kochen–Specker theorem in quantum mechanics, showing that certain types of hidden variable theories are impossible. Pic. | ||1920: Ernst Paul Specker born ... mathematician. Much of his most influential work was on Quine’s New Foundations, a set theory with a universal set, but he is most famous for the Kochen–Specker theorem in quantum mechanics, showing that certain types of hidden variable theories are impossible. Pic. | ||
||1920: Fred Basolo born ... inorganic chemist. He received his Ph.D. at the University of Illinois at Urbana-Champaign in 1943, under Prof. John C. Bailar, Jr.. Basolo spent his professional career at Northwestern University. He was a prolific contributor to the fields of coordination chemistry, organometallic, and bioinorganic chemistry, publishing over 400 papers. He supervised many Ph.D. students. With colleague Ralph Pearson, he co-authored the influential monograph "Mechanisms of Inorganic Reactions", which illuminated the importance of mechanisms involving coordination compounds. His autobiography, ''From Coello to Inorganic Chemistry: A Lifetime of Reactions'', was published in 2002. Pic search | ||1920: Fred Basolo born ... inorganic chemist. He received his Ph.D. at the University of Illinois at Urbana-Champaign in 1943, under Prof. John C. Bailar, Jr.. Basolo spent his professional career at Northwestern University. He was a prolific contributor to the fields of coordination chemistry, organometallic, and bioinorganic chemistry, publishing over 400 papers. He supervised many Ph.D. students. With colleague Ralph Pearson, he co-authored the influential monograph "Mechanisms of Inorganic Reactions", which illuminated the importance of mechanisms involving coordination compounds. His autobiography, ''From Coello to Inorganic Chemistry: A Lifetime of Reactions'', was published in 2002. Pic search. | ||
||1921: Yozo Matsushima born ... mathematician. Pic search | ||1921: Yozo Matsushima born ... mathematician. Pic search. | ||
||1921: Jacques Friedel born ... physicist and material scientist. Pic. | ||1921: Jacques Friedel born ... physicist and material scientist. Pic. | ||
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||1953: U.S.President Dwight D. Eisenhower denies all appeals for clemency for Julius and Ethel Rosenberg. Pic. | ||1953: U.S.President Dwight D. Eisenhower denies all appeals for clemency for Julius and Ethel Rosenberg. Pic. | ||
||1959: Hardy Cross dies ... structural engineer and the developer of the moment distribution method for structural analysis of statically indeterminate structures. The method was in general use from c. 1935 until c. 1960 when it was gradually superseded by other methods. Pic search | ||1959: Hardy Cross dies ... structural engineer and the developer of the moment distribution method for structural analysis of statically indeterminate structures. The method was in general use from c. 1935 until c. 1960 when it was gradually superseded by other methods. Pic search. | ||
||1971: Eighty-seven countries, including the United States, United Kingdom, and Soviet Union, sign the Seabed Arms Control Treaty outlawing nuclear weapons on the ocean floor in international waters. | ||1971: Eighty-seven countries, including the United States, United Kingdom, and Soviet Union, sign the Seabed Arms Control Treaty outlawing nuclear weapons on the ocean floor in international waters. | ||
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File:Johannes Hans Daniel Jensen.jpg|link=J. Hans D. Jensen (nonfiction)|1973: Nuclear physicist and Nobel Prize laureate [[J. Hans D. Jensen (nonfiction)|J. Hans D. Jensen]] dies. Jensen shared half of the 1963 Nobel Prize in Physics with Maria Goeppert-Mayer for their proposal of the nuclear shell model. | File:Johannes Hans Daniel Jensen.jpg|link=J. Hans D. Jensen (nonfiction)|1973: Nuclear physicist and Nobel Prize laureate [[J. Hans D. Jensen (nonfiction)|J. Hans D. Jensen]] dies. Jensen shared half of the 1963 Nobel Prize in Physics with Maria Goeppert-Mayer for their proposal of the nuclear shell model. | ||
||1974: Vladimir Smirnov dies ... mathematician who made significant contributions in both pure and applied mathematics, and also in the history of mathematics. Pic search | ||1974: Vladimir Smirnov dies ... mathematician who made significant contributions in both pure and applied mathematics, and also in the history of mathematics. Pic search. | ||
||1976: Alexander Lippisch dies ... aeronautical engineer, a pioneer of aerodynamics who made important contributions to the understanding of tailless aircraft, delta wings and the ground effect, and also worked in the U.S. His most famous designs are the Messerschmitt Me 163 rocket-powered interceptor and the Dornier Aerodyne. Pic. | ||1976: Alexander Lippisch dies ... aeronautical engineer, a pioneer of aerodynamics who made important contributions to the understanding of tailless aircraft, delta wings and the ground effect, and also worked in the U.S. His most famous designs are the Messerschmitt Me 163 rocket-powered interceptor and the Dornier Aerodyne. Pic. | ||
Revision as of 06:59, 4 March 2021
1617: Mathematician, cartographer, and astronomer Giovanni Antonio Magini dies. Mangini supported a geocentric system of the world, and defended the use of astrology in medicine, but also made practical contributions to mathematics and physics.
1618: Writer and alleged troll Culvert Origenes publishes his essay Man's Inhumanity to Man, which will profoundly influence three generations of Enlightenment-era thinkers.
1626: Mathematician and astronomer Pietro Cataldi dies. Cataldi contributed to the development of continued fractions and a method for their representation; he also discovered the sixth and seventh perfect numbers by 1588.
1650: Mathematician and philosopher René Descartes dies. Descartes is remembered as the father of modern Western philosophy.
1760: First known use of Japanese rod calculus to detect and prevent crimes against mathematical constants.
1847: Inventor, engineer, and businessman Thomas Edison born. Edison will develop the light bulb and the phonograph, among other inventions.
1898: Physicist and academic Leo Szilard born. Szilard will conceive the nuclear chain reaction in 1933, and patent the idea of a nuclear reactor with Enrico Fermi.
1930: Mathematician, statistician, and crime-fighter Oskar Anderson publishes new theory of mathematical statistics based on Gnomon algorithm functions with applications in the detection and prevention of crimes against mathematical constants.
1931: Engineer and inventor Charles Algernon Parsons dies. Parsons invented the compound steam turbine, and worked on dynamo and turbine design, power generation, and optical equipment for searchlights and telescopes.
1944: Mathematical physicist and crime-fighter Charles Critchfield uses burst of neutrons to detect and prevent crimes against physical constants.
1973: Nuclear physicist and Nobel Prize laureate J. Hans D. Jensen dies. Jensen shared half of the 1963 Nobel Prize in Physics with Maria Goeppert-Mayer for their proposal of the nuclear shell model.
2008: Mathematician and academic Alexander Andreevich Samarskii dies. Samarskii contributed to applied mathematics, numerical analysis, mathematical modeling, and finite difference methods.
2019: Wheel of Fire 2 is voted Picture of the Day by the citizens of New Minneapolis, Canada.