Template:Selected anniversaries/January 30: Difference between revisions
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||1606: Robert Wintour dies ... a member of the group of provincial English Catholics who planned the failed Gunpowder Plot of 1605. No DOB. Pic. | ||1606: Robert Wintour dies ... a member of the group of provincial English Catholics who planned the failed Gunpowder Plot of 1605. No DOB. Pic. | ||
||1610: | ||1610: Galileo writes to Belisario Vinta, with notes on his long observation of the moon with a new twenty-power scope. A letter containing much of what was to appear about the Moon in Sidereus Nuncius, two months later. *Drake, Galileo at Work; 1978 https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-30.html | ||
||1619: Michelangelo Ricci born ... In 1666, he found the tangent lines to the parabolas of Fermat. *VFR Michelangelo Ricci was a friend of Torricelli; in fact both were taught by Benedetti Castelli. He studied theology and law in Rome and at this time he became friends with René de Sluze. It is clear that Sluze, Torricelli and Ricci had a considerable influence on each other in the mathematics which they studied. Ricci made his career in the Church. His income came from the Church, certainly from 1650 he received such funds, but perhaps surprisingly he was never ordained. Ricci served the Pope in several different roles before being made a cardinal by Pope Innocent XI in 1681. Ricci's main work was Exercitatio geometrica, De maximis et minimis (1666) which was later reprinted as an appendix to Nicolaus Mercator's Logarithmo-technia (1668). It only consisted of 19 pages and it is remarkable that his high reputation rests solely on such a short publication. In this work Ricci finds the maximum of xm(a - x)n and the tangents to ym = kxn. The methods are early examples of induction. He also studied spirals (1644), generalised cycloids (1674) and states explicitly that finding tangents and finding areas are inverse operations (1668). *SAU Pic. | ||1619: Michelangelo Ricci born ... In 1666, he found the tangent lines to the parabolas of Fermat. *VFR Michelangelo Ricci was a friend of Torricelli; in fact both were taught by Benedetti Castelli. He studied theology and law in Rome and at this time he became friends with René de Sluze. It is clear that Sluze, Torricelli and Ricci had a considerable influence on each other in the mathematics which they studied. Ricci made his career in the Church. His income came from the Church, certainly from 1650 he received such funds, but perhaps surprisingly he was never ordained. Ricci served the Pope in several different roles before being made a cardinal by Pope Innocent XI in 1681. Ricci's main work was Exercitatio geometrica, De maximis et minimis (1666) which was later reprinted as an appendix to Nicolaus Mercator's Logarithmo-technia (1668). It only consisted of 19 pages and it is remarkable that his high reputation rests solely on such a short publication. In this work Ricci finds the maximum of xm(a - x)n and the tangents to ym = kxn. The methods are early examples of induction. He also studied spirals (1644), generalised cycloids (1674) and states explicitly that finding tangents and finding areas are inverse operations (1668). *SAU Pic. | ||
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|NOTA BENE: Pat's blog gives DOB as Jan 31: https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-31.html | |NOTA BENE: Pat's blog gives DOB as Jan 31: https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-31.html | ||
||1853: Sears Cook Walker born ... astronomer. | ||1853: Sears Cook Walker born ... astronomer. Pic. | ||
||1862: The first American ironclad warship, the USS Monitor is launched. | ||1862: The first American ironclad warship, the USS ''Monitor'' is launched. | ||
||1865: Georg Landsberg born ... mathematician, known for his work in the theory of algebraic functions and on the Riemann–Roch theorem. The Takagi–Landsberg curve, a fractal that is the graph of a nowhere-differentiable but uniformly continuous function, is named after Teiji Takagi and him. Pic: https://commons.wikimedia.org/wiki/File:Georg_Landsberg_(HeidICON_28864).jpg | ||1865: Georg Landsberg born ... mathematician, known for his work in the theory of algebraic functions and on the Riemann–Roch theorem. The Takagi–Landsberg curve, a fractal that is the graph of a nowhere-differentiable but uniformly continuous function, is named after Teiji Takagi and him. Pic: https://commons.wikimedia.org/wiki/File:Georg_Landsberg_(HeidICON_28864).jpg | ||
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||1897: Mary Frances Winston elected to membership in the American Mathematical Society. The previous year she received her PhD at G¨ottingen, being the first American woman to receive a PhD in mathematics at a German university. *G. B. Price, History of the Department of Mathematics of the University of Kansas, 1866–1970, p. 70 See: https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-30.html | ||1897: Mary Frances Winston elected to membership in the American Mathematical Society. The previous year she received her PhD at G¨ottingen, being the first American woman to receive a PhD in mathematics at a German university. *G. B. Price, History of the Department of Mathematics of the University of Kansas, 1866–1970, p. 70 See: https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-30.html | ||
||1899: Max Theiler born ... virologist and academic, Nobel Prize laureate. | ||1899: Max Theiler born ... virologist and academic, Nobel Prize laureate. Pic. | ||
|| | ||1910: Granville Woods dies ... inventor and engineer ... he concentrated most of his work on trains and streetcars. One of his notable inventions was the Multiplex Telegraph, a device that sent messages between train stations and moving trains. Pic. | ||
||1912: Werner Hartmann born ... physicist and academic. | ||1911: The destroyer USS ''Terry'' makes the first airplane rescue at sea saving the life of Douglas McCurdy ten miles from Havana, Cuba. | ||
||1912: Werner Hartmann born ... physicist and academic. Pic. | |||
||1918: Heinz Rutishauser born ... mathematician and a pioneer of modern numerical mathematics and computer science. Pic search: https://www.google.com/search?q=Heinz+Rutishauser | ||1918: Heinz Rutishauser born ... mathematician and a pioneer of modern numerical mathematics and computer science. Pic search: https://www.google.com/search?q=Heinz+Rutishauser | ||
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||1928: Johannes Fibiger dies ... physician and academic, Nobel Prize laureate. | ||1928: Johannes Fibiger dies ... physician and academic, Nobel Prize laureate. | ||
||1945 | ||1945: Meir Dagan, Israeli military officer and intelligence official, Director of Mossad (2002–11) (d. 2016) | ||
||1948: Mahatma Gandhi is assassinated by Nathuram Godse, a Hindu extremist. | ||1948: Mahatma Gandhi is assassinated by Nathuram Godse, a Hindu extremist. | ||
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||1958: Ernst Heinkel dies ... engineer and businessman; founded the Heinkel Aircraft Company. | ||1958: Ernst Heinkel dies ... engineer and businessman; founded the Heinkel Aircraft Company. | ||
||1968 | ||1968: Vietnam War: Tet Offensive launch by forces of the Viet Cong and North Vietnamese Army against South Vietnam, the United States, and their allies. | ||
||1969: The Beatles' last public performance, on the roof of Apple Records in London. The impromptu concert is broken up by the police. | ||1969: The Beatles' last public performance, on the roof of Apple Records in London. The impromptu concert is broken up by the police. | ||
Revision as of 16:38, 5 March 2019
1661: Oliver Cromwell, Lord Protector of the Commonwealth of England, is ritually executed more than two years after his death, on the 12th anniversary of the execution of the monarch he himself deposed.
1661: Mathematician William Oughtred uses Gnomon algorithm functions to extract data from the severed head of Oliver Cromwell.
1736: inventor, engineer, and chemist James Watt born. He will make major improvements to the steam engine.
1830: In a letter to Laplace, Carl Friedrich Gauss writes about a "curious problem" that he had been working on for twelve years. He gives the limiting value of the frequency of distribution of positive integers in the continued fraction of a random number (now called the Gauss-Kuzmin Distribution) as log2(1+x) . Gauss then asks if Laplace can offer help in finding the error term.
1884: Inventor Herman Hollerith invents new type of scrying engine which generates images from residual consciousness in the severed head of Oliver Cromwell.
1954: Asclepius Myrmidon discovers unregistered halting problem, predicts new class of crimes against mathematical constants.
1975: The Monitor National Marine Sanctuary is established as the first United States National Marine Sanctuary.
1976: Comic book artist and crime-fighter Gil Kane publishes illustrated history of math crimes throughout history.
1998: Mathematician Samuel Eilenberg dies. He co-founded category theory with Saunders Mac Lane, and proposed the Eilenberg swindle (a construction applying the telescoping cancellation idea to projective modules).