Template:Selected anniversaries/February 20: Difference between revisions

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||1759 – Johann Christian Reil, German physician, physiologist, and anatomist (d. 1813)
||1762 – Tobias Mayer, German astronomer and academic (b. 1723)
||1771 – Jean-Jacques d'Ortous de Mairan, French geophysicist and astronomer (b. 1678)


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.
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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.
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.
 
||1844 – Ludwig Boltzmann, Austrian physicist and philosopher (d. 1906) Ludwig Eduard Boltzmann (February 20, 1844 – September 5, 1906) was an Austrian physicist and philosopher whose greatest achievement was in the 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).
 
||1872 – The Metropolitan Museum of Art opens in New York City.
 
||1901 – René Dubos, French-American biologist and author (d. 1982)
 
||1901 – Louis Kahn, American architect, designed the Salk Institute, the Kimbell Art Museum and the Bangladesh Parliament Building (d. 1974)
 
||1907 – Henri Moissan, French chemist and academic, Nobel Prize laureate (b. 1852)
 
||1909 – Publication of the Futurist Manifesto in the French journal Le Figaro.
 
||Robert von Lieben (b. February 20, 1913) was a notable Austrian physicist. Pic.
 
||1933 – Adolf Hitler secretly meets with German industrialists to arrange for financing of the Nazi Party's upcoming election campaign.


||1943 – American movie studio executives agree to allow the Office of War Information to censor movies.
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:Atlas-B rocket with SCORE payload.jpg|link=SCORE (satellite) (nonfiction)|1958: [[SCORE (satellite) (nonfiction)|Project SCORE satellite]] equipped with [[Gnomon algorithm]] control system.
 
||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.
 
||1972 – Maria Goeppert-Mayer, German-American physicist and academic, Nobel Prize laureate (b. 1906)
 
File:John_Brunner's_Lee_and_Turner_engine.jpg|link=John Brunner|1973: [[John Brunner]] accuses [[Killer Poke]] of infecting [["Hello World!" program (nonfiction)|"Hello World" program]] with [[Extract of Radium]].


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|1987: New class of [[Fantasy Voronoi diagrams]] uses [[Gnomon algorithm]] to [[Computation (nonfiction)|compute]] record-breaking profits.
||Takeo Yoshikawa (d. February 20, 1993) was a Japanese spy in Hawaii before the attack on Pearl Harbor on December 7, 1941.
||2013 – Kenji Eno, Japanese game designer and composer (b. 1970)
||2013 – David S. McKay, American biochemist and geologist (b. 1936)
||2014 – Dozens of Euromaidan anti-government protesters died in Ukraine's capital Kiev, many reportedly killed by snipers.
|File:Zero knowledge proof.png|link=Zero-knowledge proof (nonfiction)|2015: Advances in [[Zero-knowledge proof (nonfiction)|zero-knowledge proof]] theory "are central to the problem of mathematical reliability," says mathematician and crime-fighter [[Alice Beta]].
File:Pin Man.jpg|link=Pin Man|2016: Steganographic analysis of [[Pin Man]] illustration reveals "several hundred gigabytes of encrypted data related to the [[Carnevale Tenebre]] program."


||2017 – Mildred Dresselhaus, American physicist (b. 1930)


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Latest revision as of 07:53, 20 February 2022

  • 1771: Geophysicist, astronomer, and biologist 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.

    1771: Geophysicist, astronomer, and biologist 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.

  • 1788: Physicist and academic Laura Bassi dies. She was one of the key figures in introducing Newton's ideas of physics and natural philosophy to Italy.

    1788: Physicist and academic Laura Bassi dies. She was one of the key figures in introducing Newton's ideas of physics and natural philosophy to Italy.

  • 1972: Physicist and academic 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.

    1972: Physicist and academic 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.

  • 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.

    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.

  • 1986: The Soviet Union launches its Mir spacecraft. Remaining in orbit for 15 years, it is occupied for ten of those years.

    1986: The Soviet Union launches its Mir spacecraft. Remaining in orbit for 15 years, it is occupied for ten of those years.

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