Template:Selected anniversaries/April 9: Difference between revisions
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File:Thomas Seebeck.jpg|link=Thomas Johann Seebeck (nonfiction)|1770: Physicist and academic [[Thomas Johann Seebeck (nonfiction)|Thomas Johann Seebeck]] born. He will discover the thermoelectric effect. | File:Thomas Seebeck.jpg|link=Thomas Johann Seebeck (nonfiction)|1770: Physicist and academic [[Thomas Johann Seebeck (nonfiction)|Thomas Johann Seebeck]] born. He will discover the thermoelectric effect. | ||
||1791: George Peacock born ... mathematician. | ||1791: George Peacock born ... mathematician. Pic. | ||
File:Joseph-Louis Lagrange.jpg|link=Joseph-Louis Lagrange (nonfiction)|1805: Mathematician and crime-fighter [[Joseph-Louis Lagrange (nonfiction)|Joseph-Louis Lagrange]] delivers lecture on applications of number theory to the detection and prevention of [[crimes against mathematical constants]]. | File:Joseph-Louis Lagrange.jpg|link=Joseph-Louis Lagrange (nonfiction)|1805: Mathematician and crime-fighter [[Joseph-Louis Lagrange (nonfiction)|Joseph-Louis Lagrange]] delivers lecture on applications of number theory to the detection and prevention of [[crimes against mathematical constants]]. | ||
||1806: Isambard Kingdom Brunel born ... mechanical and civil engineer who is considered "one of the most ingenious and prolific figures in engineering history" | ||1806: Isambard Kingdom Brunel born ... mechanical and civil engineer who is considered "one of the most ingenious and prolific figures in engineering history". Pic. | ||
||1834: Edmond Nicolas Laguerre born ... mathematician, a member of the Académie française (1885). His main works were in the areas of geometry and complex analysis. He also investigated orthogonal polynomials (see Laguerre polynomials). Laguerre's method is a root-finding algorithm tailored to polynomials. | ||1834: Edmond Nicolas Laguerre born ... mathematician, a member of the Académie française (1885). His main works were in the areas of geometry and complex analysis. He also investigated orthogonal polynomials (see Laguerre polynomials). Laguerre's method is a root-finding algorithm tailored to polynomials. | ||
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File:Charles Proteus Steinmetz.jpg|link=Charles Proteus Steinmetz (nonfiction)|1865: Mathematician and electrical engineer [[Charles Proteus Steinmetz (nonfiction)|Charles Proteus Steinmetz]] born. He will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States. | File:Charles Proteus Steinmetz.jpg|link=Charles Proteus Steinmetz (nonfiction)|1865: Mathematician and electrical engineer [[Charles Proteus Steinmetz (nonfiction)|Charles Proteus Steinmetz]] born. He will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States. | ||
||1866: André-Michel Guerry dies ... lawyer and amateur statistician. Together with Adolphe Quetelet he may be regarded as the founder of moral statistics which led to the development of criminology, sociology and ultimately, modern social science. | ||1866: André-Michel Guerry dies ... lawyer and amateur statistician. Together with Adolphe Quetelet he may be regarded as the founder of moral statistics which led to the development of criminology, sociology and ultimately, modern social science. Pic: map. | ||
||1869: Élie Joseph Cartan born ... mathematician who did fundamental work in the theory of Lie groups and their geometric applications. He also made significant contributions to mathematical physics, differential geometry, differential equations, group theory and quantum mechanics. | ||1869: Élie Joseph Cartan born ... mathematician who did fundamental work in the theory of Lie groups and their geometric applications. He also made significant contributions to mathematical physics, differential geometry, differential equations, group theory and quantum mechanics. | ||
Revision as of 16:21, 15 March 2019
1770: Physicist and academic Thomas Johann Seebeck born. He will discover the thermoelectric effect.
1805: Mathematician and crime-fighter Joseph-Louis Lagrange delivers lecture on applications of number theory to the detection and prevention of crimes against mathematical constants.
1860: On his phonautograph machine, Édouard-Léon Scott de Martinville makes the oldest known recording of an audible human voice. A visual recording of audio data, it will first be played back in 2008.
1864: Engineer and physicist Wilhelm Röntgen uses X-rays generator to expose loaded dice, reveals organized math crime cartel in casinos around the world.
1865: Mathematician and electrical engineer Charles Proteus Steinmetz born. He will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States.
1917: Mathematician and philosopher Georg Cantor publishes new theory of sets derived from Gnomon algorithm functions. Colleagues hail it as "a magisterial contribution to science and art of detecting and preventing crimes against mathematical constants."
1978: Musician and alleged math criminal Skip Digits performs at the Kennedy Center for the Arts.
2018: Green Tangle voted Picture of the Day by the citizens of New Minneapolis, Canada.