Template:Selected anniversaries/February 20: Difference between revisions

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||1943 – American movie studio executives agree to allow the Office of War Information to censor movies.
||1943 – American movie studio executives agree to allow the Office of War Information to censor movies.


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.
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.


||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.
||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.

Revision as of 20:59, 19 February 2018

  • 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.

  • 1772: Astronomer, mathematician, and crime-fighter Nicole-Reine Lepaute publishes new set of star charts using Gnomon algorithm functions which give unprecedented accuracy in the measurement of crimes against mathematical constants.

    1772: Astronomer, mathematician, and crime-fighter Nicole-Reine Lepaute publishes new set of star charts using Gnomon algorithm functions which give unprecedented accuracy in the measurement of crimes against mathematical constants.

  • 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.

  • 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.

    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.

  • 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.

  • 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.

  • 1987: New class of Fantasy Voronoi diagrams uses Gnomon algorithm to compute record-breaking profits.

    1987: New class of Fantasy Voronoi diagrams uses Gnomon algorithm to compute record-breaking profits.

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