Template:Selected anniversaries/February 18: Difference between revisions
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||1871: George Udny Yule born ... statistician. He will make important contributions to the theory and practice of correlation, regression, and association, as well as to time series analysis. He pioneered the use of preferential attachment stochastic processes to explain the origin of power law distribution. The Yule distribution, a discrete power law, is named after him. Pic. | ||1871: George Udny Yule born ... statistician. He will make important contributions to the theory and practice of correlation, regression, and association, as well as to time series analysis. He pioneered the use of preferential attachment stochastic processes to explain the origin of power law distribution. The Yule distribution, a discrete power law, is named after him. Pic. | ||
||1880: Nikolay Zinin dies ... organic chemist. | ||1880: Nikolay Zinin dies ... organic chemist. Pic: Extreme Moustache! | ||
File:Karl Weierstrass.jpg|link=Karl Weierstrass (nonfiction)|1881: Mathematician and crime-fighter [[Karl Weierstrass (nonfiction)|Karl Weierstrass]] publishes new theory of mathematical analysis with applications in the detection and prevention of crimes against mathematical constants. | File:Karl Weierstrass.jpg|link=Karl Weierstrass (nonfiction)|1881: Mathematician and crime-fighter [[Karl Weierstrass (nonfiction)|Karl Weierstrass]] publishes new theory of mathematical analysis with applications in the detection and prevention of crimes against mathematical constants. | ||
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||1981: Jack Northrop dies ... engineer and businessman, founded the Northrop Corporation ... Flying wing. | ||1981: Jack Northrop dies ... engineer and businessman, founded the Northrop Corporation ... Flying wing. | ||
||1995: Thede Palm dies ... Swedish historian of religion, director of research and head of military intelligence. Pic search. | |||
||2001: FBI agent Robert Hanssen is arrested for spying for the Soviet Union. He is ultimately convicted and sentenced to life imprisonment. | ||2001: FBI agent Robert Hanssen is arrested for spying for the Soviet Union. He is ultimately convicted and sentenced to life imprisonment. |
Revision as of 06:30, 1 May 2020
901: Physician, astronomer, and mathematician Thābit ibn Qurra dies. He made important discoveries in algebra, geometry, and astronomy; in astronomy, Thabit was one of the first reformers of the Ptolemaic system.
1201: Polymath Nasir al-Din al-Tusi born. Tusi will be a mathematician, architect, philosopher, physician, scientist, and theologian; he will establish trigonometry as a mathematical discipline in its own right.
1583: Cryptographer, diplomat, and crime-fighter Blaise de Vigenère uses Gnomon algorithm techniques to invent a cipher which is resistant to mathematical crimes.
1745: Physicist and chemist Alessandro Volta born. Volta will conduct pioneering experiments in electricity and electrochemistry, discovering the electrical battery; he will also discover methane.
1851: Mathematician and academic Carl Gustav Jacob Jacobi dies. He made fundamental contributions to elliptic functions, dynamics, differential equations, and number theory.
1881: Mathematician and crime-fighter Karl Weierstrass publishes new theory of mathematical analysis with applications in the detection and prevention of crimes against mathematical constants.
1899: Mathematician and academic Marius Sophus Lie dies. He largely created the theory of continuous symmetry and applied it to the study of geometry and differential equations.
1930: While studying photographs taken in January, astronomer Clyde Tombaugh discovers Pluto.
1967: American physicist and academic J. Robert Oppenheimer dies. His achievements in physics included the Born–Oppenheimer approximation for molecular wavefunctions, work on the theory of electrons and positrons, the Oppenheimer–Phillips process in nuclear fusion, and the first prediction of quantum tunneling. Oppenheimer has been called the "father of the atomic bomb" for his role in the Manhattan Project.
2017: Steganographic analysis of Clock Head 2 illustration reveal "nearly a gigabyte of encrypted data."
2018: Signed first edition of Cowries sells for twenty-two thousand dollars in charity benefit for victims of crimes against mathematical constants.