Template:Selected anniversaries/January 30: Difference between revisions
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||1606: Robert Wintour dies ... conspirator. | ||1606: Robert Wintour dies ... conspirator. | ||
||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. | |||
File:Oliver Cromwell by Samuel Cooper.jpg|link=Oliver Cromwell (nonfiction)|1661: [[Oliver Cromwell (nonfiction)|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. | File:Oliver Cromwell by Samuel Cooper.jpg|link=Oliver Cromwell (nonfiction)|1661: [[Oliver Cromwell (nonfiction)|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. | ||
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||1826: The Menai Suspension Bridge, considered the world's first modern suspension bridge, connecting the Isle of Anglesey to the north West coast of Wales, is opened. | ||1826: The Menai Suspension Bridge, considered the world's first modern suspension bridge, connecting the Isle of Anglesey to the north West coast of Wales, is opened. | ||
||1830: 1830 In a letter to Laplace, 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) . He then asks if Laplace can offer help in finding the error term. *Math World https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-30.html | |||
||1835: In the first assassination attempt against a President of the United States, Richard Lawrence attempts to shoot president Andrew Jackson, but fails and is subdued by a crowd, including several congressmen as well as Jackson himself. | ||1835: In the first assassination attempt against a President of the United States, Richard Lawrence attempts to shoot president Andrew Jackson, but fails and is subdued by a crowd, including several congressmen as well as Jackson himself. | ||
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||1894: Moritz Abraham Stern dies ... mathematician. Stern was interested in primes that cannot be expressed as the sum of a prime and twice a square (now known as Stern primes). He is known for formulating Stern's diatomic series, which counts the number of ways to write a number as a sum of powers of two with no power used more than twice. Pic. | ||1894: Moritz Abraham Stern dies ... mathematician. Stern was interested in primes that cannot be expressed as the sum of a prime and twice a square (now known as Stern primes). He is known for formulating Stern's diatomic series, which counts the number of ways to write a number as a sum of powers of two with no power used more than twice. Pic. | ||
||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. | ||
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||1925: Douglas Engelbart born ... computer scientist, invented the computer mouse. | ||1925: Douglas Engelbart born ... computer scientist, invented the computer mouse. | ||
||1928: Johannes Fibiger dies ... physician and academic, Nobel Prize laureate | ||1928: Johannes Fibiger dies ... physician and academic, Nobel Prize laureate. | ||
||1945 – Meir Dagan, Israeli military officer and intelligence official, Director of Mossad (2002–11) (d. 2016) | ||1945 – Meir Dagan, Israeli military officer and intelligence official, Director of Mossad (2002–11) (d. 2016) | ||
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||1982: Victor Mikhailovich Glushkov dies ... mathematician, the founding father of information technology in the Soviet Union, and one of the founders of Cybernetics. Pic. | ||1982: Victor Mikhailovich Glushkov dies ... mathematician, the founding father of information technology in the Soviet Union, and one of the founders of Cybernetics. Pic. | ||
||1982: Richard Skrenta writes the first PC virus code, which is 400 lines long and disguised as an Apple boot program called "Elk Cloner". | ||1982: Richard Skrenta writes the first PC virus code, which is 400 lines long and disguised as an Apple boot program called "Elk Cloner". 1982 First computer virus, the Elk Cloner, written by 15-year old Rich Skrenta, is found in the wild. It infects Apple II computers via floppy disk. *Wik https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-30.html | ||
||1983: Wang Zhuxi dies ... physicist, educator, and philologist. Pic. | ||1983: Wang Zhuxi dies ... physicist, educator, and philologist. Pic. | ||
Revision as of 06:40, 30 January 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.
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).