Template:Selected anniversaries/February 20: Difference between revisions

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File:Gérard Desargues.jpg|link=Girard Desargues (nonfiction)|1655: Mathematician, engineer, and [[APTO]] field agent [[Girard Desargues (nonfiction)|Girard Desargues]] uses [[Projective geometry (nonfiction)|projective geometry]] to defeat rogue mathematician [[Anarchimedes]] in single combat.
||1759: Johann Christian Reil born ... physician, physiologist, and anatomist. Pic.
||1762: Tobias Mayer dies ... astronomer and academic. Pic. Reflecting circle. Pic.


File:Jean-Jacques d'Ortous de Mairan.png|link=Jean-Jacques d'Ortous de Mairan (nonfiction)|1771: Geophysicist, astronomer, and biologist [[Jean-Jacques d'Ortous de Mairan (nonfiction)|Jean-Jacques d'Ortous de Mairan]] dies. His observations and experiments inspired the beginning of what is now known as the study of biological circadian rhythms.
File:Jean-Jacques d'Ortous de Mairan.png|link=Jean-Jacques d'Ortous de Mairan (nonfiction)|1771: Geophysicist, astronomer, and biologist [[Jean-Jacques d'Ortous de Mairan (nonfiction)|Jean-Jacques d'Ortous de Mairan]] dies. His observations and experiments inspired the beginning of what is now known as the study of biological circadian rhythms.
File:Nicole-Reine Lepaute.jpg|link=Nicole-Reine Lepaute (nonfiction)|1772: Astronomer, mathematician, and crime-fighter [[Nicole-Reine Lepaute (nonfiction)|Nicole-Reine Lepaute]] publishes new set of star charts using [[Gnomon algorithm functions]] which give unprecedented accuracy in the measurement of [[crimes against astronomical constants]].


File:Laura Bassi.jpg|link=Laura Bassi (nonfiction)|1788: Physicist and academic [[Laura Bassi (nonfiction)|Laura Bassi]] dies. She was one of the key figures in introducing Newton's ideas of physics and natural philosophy to Italy.
File:Laura Bassi.jpg|link=Laura Bassi (nonfiction)|1788: Physicist and academic [[Laura Bassi (nonfiction)|Laura Bassi]] dies. She was one of the key figures in introducing Newton's ideas of physics and natural philosophy to Italy.
||1792: The Postal Service Act, establishing the United States Post Office Department, is signed by United States President George Washington.
||1841: Friedrich Sertürner born ... chemist and pharmacist, best known for his discovery of morphine in 1804. Pic.
||1844: Ludwig Boltzmann born ... physicist and philosopher ... development of statistical mechanics, which explains and predicts how the properties of atoms (such as mass, charge, and structure) determine the physical properties of matter (such as viscosity, thermal conductivity, and diffusion). Pic.
||1860: Mathias Lerch born ... mathematician who published about 250 papers, largely on mathematical analysis and number theory. The Lerch zeta-function is named after him as is the Appell–Lerch sum. Pic.
||1872: The Metropolitan Museum of Art opens in New York City.
||1901: René Dubos, French-American biologist and author.
||1901: Louis Kahn born ... architect, designed the Salk Institute, the Kimbell Art Museum and the Bangladesh Parliament Building.
||1907: Henri Moissan dies ... chemist and academic, Nobel Prize laureate. Pic.
||1909: Publication of the Futurist Manifesto in the French journal ''Le Figaro''.
||1913: Robert von Lieben born ... physicist. Pic.
||1924: Gerson Goldhaber born ... American particle physicist and astrophysicist. He was one of the discoverers of the J/ψ meson which confirmed the existence of the charm quark. Pic.
||1927: Jacobus "Koos" Verhoeff born ... mathematician, computer scientist, and artist. He is known for his work on error detection and correction, and worked on information retrieval.[4] He has also held exhibitions of his mathematically inspired sculptures. He was best known for his check-digit Verhoeff algorithm. Pic search: https://www.google.com/search?q=jacobus+verhoeff
||1933: Adolf Hitler secretly meets with German industrialists to arrange for financing of the Nazi Party's upcoming election campaign.
||1942: Bereznyak-Isayev BI-1 was a Soviet short-range rocket powered interceptor developed during the Second World War: the engine exploded during a full system test. The nozzle section was blasted into the lake, and the engine head struck the back of the pilot's seat, knocking Bakhchivandzhi against the instrument panel and injuring him slightly. Pressurized nitric acid from a broken propellant line drenched Pallo. Fortunately, quick thinking mechanics dunked him head-first into a tank of soda solution. His face was yellow from the characteristic acid staining, but his glasses saved him from being blinded. https://en.wikipedia.org/wiki/Bereznyak-Isayev_BI-1 Pic.
||1943: American movie studio executives agree to allow the Office of War Information to censor movies.
||1944: George B. Purdy born ... mathematician and computer scientist who specialized in cryptography, combinatorial geometry and number theory.  Pic: https://www.legacy.com/obituaries/cincinnati/obituary.aspx?n=george-b-purdy&pid=187736433&fhid=27748
File:Janet Beta Accepts Commission (detail).jpg|link=Janet Beta|1947: Mathematician and military intelligence officer [[Janet Beta]] privately advises Eleanor Roosevelt that [[crimes against mathematical constants]] will only worsen under a military-industrial state of emergency.
||1955: Oswald Avery dies ... physician and microbiologist. Avery was one of the first molecular biologists and a pioneer in immunochemistry; he is best known for the experiment (published in 1944 with his co-workers Colin MacLeod and Maclyn McCarty) that isolated DNA as the material of which genes and chromosomes are made. Pic.
||1962: Mercury program: While aboard Friendship 7, John Glenn becomes the first American to orbit the earth, making three orbits in four hours, 55 minutes.
||1965: Ranger 8 crashes into the Moon after a successful mission of photographing possible landing sites for the Apollo program astronauts.
||1971: The United States Emergency Broadcast System is accidentally activated in an erroneous national alert.


File:Maria Goeppert-Mayer.jpg|link=Maria Goeppert-Mayer (nonfiction)|1972: Physicist and academic [[Maria Goeppert-Mayer (nonfiction)|Maria Goeppert-Mayer]] dies. She developed a mathematical model for the structure of nuclear shells, for which she was awarded the Nobel Prize in Physics in 1963, which she shared with J. Hans D. Jensen and Eugene Wigner.
File:Maria Goeppert-Mayer.jpg|link=Maria Goeppert-Mayer (nonfiction)|1972: Physicist and academic [[Maria Goeppert-Mayer (nonfiction)|Maria Goeppert-Mayer]] dies. She developed a mathematical model for the structure of nuclear shells, for which she was awarded the Nobel Prize in Physics in 1963, which she shared with J. Hans D. Jensen and Eugene Wigner.


||1980: Joseph Banks Rhine dies ... botanist and parapsychologist. Rhine who founded parapsychology as a branch of psychology, founding the parapsychology lab at Duke University, the Journal of Parapsychology, the Foundation for Research on the Nature of Man, and the Parapsychological Association. Pic.
File:Tubular Elves.jpg|link=Tubular Elves|1974: Premiere of '''''[[Tubular Elves]]''''', a short documentary film about how the album ''Tubular Bells'' accidentally recorded machine elves during UK military submarine communication tests.


File:Mir.jpg|link=Mir (nonfiction)|1986: The Soviet Union launches its [[Mir (nonfiction)|Mir spacecraft]]. Remaining in orbit for 15 years, it is occupied for ten of those years.
File:Mir.jpg|link=Mir (nonfiction)|1986: The Soviet Union launches its [[Mir (nonfiction)|Mir spacecraft]]. Remaining in orbit for 15 years, it is occupied for ten of those years.


|File:AESOP.jpg|link=AESOP|[[AESOP]] said to be cause of prophetic dreams among the [[Mir (nonfiction)|Mir]] astronauts.
File:Voronoi-diagram-color-commentators.jpg|link=Fantasy Voronoi diagram|1986: New channel features [[Fantasy Voronoi diagrams]] based on the probability of the Soviet spacecraft [[Mir (nonfiction)|Mir spacecraft]] contacting [[AESOP]] or other artificial intelligence.
||1993: Takeo Yoshikawa dies ... Japanese spy in Hawaii before the attack on Pearl Harbor on December 7, 1941. Pic search good: https://www.google.com/search?q=Takeo+Yoshikawa
||2005: Thomas Willmore dies ... geometer and academic. He contributed to Riemannian 3-space and harmonic spaces. Pic.
||2013: Kenji Eno dies ... game designer and composer.
||2013: David S. McKay dies ... biochemist and geologist.
||2014: Dozens of Euromaidan anti-government protesters died in Ukraine's capital Kiev, many reportedly killed by snipers.
||2017: Mildred Dresselhaus dies ... physicist. "Queen of carbon science." Pic.
File:Green Tangle 4.jpg|link=Green Tangle 4 (nonfiction)|2018: Steganographic analysis of ''[[Green Tangle 4 (nonfiction)|Green Tangle 4]]'' reveals "between four hundred and five hundred kilobytes" of previously unknown [[Gnomon algorithm]] functions.


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Latest revision as of 07:53, 20 February 2022