Template:Selected anniversaries/February 20: Difference between revisions
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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. | 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 – Kenji Eno, Japanese game designer and composer (b. 1970) | ||
Revision as of 15:19, 2 December 2017
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.
1958: Project SCORE satellite equipped with Gnomon algorithm control system.
1973: John Brunner accuses Killer Poke of infecting "Hello World" program with Extract of Radium.
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.
2015: Advances in zero-knowledge proof theory "are central to the problem of mathematical reliability," says mathematician and crime-fighter Alice Beta.