Template:Selected anniversaries/June 24: Difference between revisions
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|| *** THEME: Four color theorem (Veblen, Ringel) *** | |||
||217 BC: The Romans, led by Gaius Flaminius, are ambushed and defeated by Hannibal at the Battle of Lake Trasimene. Pic: Ducarius decapitates Flaminius at the Battle of Lake Trasimene, by Joseph-Noël Sylvestre. Béziers (Languedoc-Roussillon), Musée des beaux-Arts. | ||217 BC: The Romans, led by Gaius Flaminius, are ambushed and defeated by Hannibal at the Battle of Lake Trasimene. Pic: Ducarius decapitates Flaminius at the Battle of Lake Trasimene, by Joseph-Noël Sylvestre. Béziers (Languedoc-Roussillon), Musée des beaux-Arts. | ||
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||1637: Nicolas-Claude Fabri de Peiresc dies ... astronomer and historian. Pic. | ||1637: Nicolas-Claude Fabri de Peiresc dies ... astronomer and historian. Pic. | ||
File:The Passarola, a primitive airship devised by Bartolomeu de Gusmão.png|link=Bartolomeu de Gusmão (nonfiction)|1709: The public test of the "Passarola", a primitive airship devised by priest and inventor [[Bartolomeu de Gusmão (nonfiction)|Bartolomeu de Gusmão]], fails to take place. | File:The Passarola, a primitive airship devised by Bartolomeu de Gusmão.png|link=Bartolomeu de Gusmão (nonfiction)|1709: The public test of the "Passarola", a primitive airship devised by priest and inventor [[Bartolomeu de Gusmão (nonfiction)|Bartolomeu de Gusmão]], fails to take place. | ||
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||1852: Friedrich Loeffler born ... bacteriologist and academic. | ||1852: Friedrich Loeffler born ... bacteriologist and academic. | ||
||1880: Jules Antoine Lissajous dies ... mathematician and academic ... after whom Lissajous figures are named. Among other innovations, Lissajous invented the Lissajous apparatus, a device that creates the figures that bear his name. In it, a beam of light is bounced off a mirror attached to a vibrating tuning fork, and then reflected off a second mirror attached to a perpendicularly oriented vibrating tuning fork (usually of a different pitch, creating a specific harmonic interval), onto a wall, resulting in a Lissajous figure. Pic. | ||1880: Jules Antoine Lissajous dies ... mathematician and academic ... after whom Lissajous figures are named. Among other innovations, Lissajous invented the Lissajous apparatus, a device that creates the figures that bear his name. In it, a beam of light is bounced off a mirror attached to a vibrating tuning fork, and then reflected off a second mirror attached to a perpendicularly oriented vibrating tuning fork (usually of a different pitch, creating a specific harmonic interval), onto a wall, resulting in a Lissajous figure. Pic. | ||
File:Oswald Veblen 1915.jpg|link=Oswald Veblen (nonfiction)|1880: Mathematician and academic [[Oswald Veblen (nonfiction)|Oswald Veblen]] born. His work will find application in atomic physics and the theory of relativity. | File:Oswald Veblen 1915.jpg|link=Oswald Veblen (nonfiction)|1880: Mathematician and academic [[Oswald Veblen (nonfiction)|Oswald Veblen]] born. His work will find application in atomic physics and the theory of relativity. Veblen will publish a paper (1912) on the [[Four color theorem (nonfiction)|Four color conjecture]]. | ||
||1883: Victor Francis Hess born ... physicist and academic, Nobel Prize laureate. | ||1883: Victor Francis Hess born ... physicist and academic, Nobel Prize laureate, discovered cosmic rays. Pic. | ||
||1885: Olaf Holtedahl born ... geologist. | ||1885: Olaf Holtedahl born ... geologist; was among the last of a generation of geologists that mastered the subject in all its breadth. Pic. | ||
||1886: William King dies - geologist at Queen's College Galway. He was the first (in 1864) to propose that the bones found in the German valley of Neanderthal in 1856 were not of Homo sapiens, but of a distinct species: Homo neanderthalensis. Pic. | |||
||1888: Georges Darmois born ... mathematician and statistician. He pioneered in the theory of sufficiency, in stellar statistics, and in factor analysis. He is one of the eponyms of the Koopman–Pitman–Darmois theorem and sufficient statistics and exponential families. Pic: http://www-history.mcs.st-and.ac.uk/PictDisplay/Darmois.html | ||1888: Georges Darmois born ... mathematician and statistician. He pioneered in the theory of sufficiency, in stellar statistics, and in factor analysis. He is one of the eponyms of the Koopman–Pitman–Darmois theorem and sufficient statistics and exponential families. Pic: http://www-history.mcs.st-and.ac.uk/PictDisplay/Darmois.html | ||
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||1900: Wilhelm Cauer born ... mathematician and engineer. Pic. | ||1900: Wilhelm Cauer born ... mathematician and engineer. Pic. | ||
||1900: Bernard D. H. Tellegen born ... engineer and academic ... inventor of the pentode and the gyrator. He is also known for a theorem in circuit theory, Tellegen's theorem. Pic. | |||
||1909: William Penney born ... mathematician and physicist ... Penney played a leading role in the development of Britain's nuclear programme, a clandestine programme started in 1942 during World War II which produced the first British atomic bomb in 1952. Pic. | ||1909: William Penney born ... mathematician and physicist ... Penney played a leading role in the development of Britain's nuclear programme, a clandestine programme started in 1942 during World War II which produced the first British atomic bomb in 1952. Pic. | ||
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||1947: Kenneth Arnold makes the first widely reported UFO sighting near Mount Rainier, Washington. | ||1947: Kenneth Arnold makes the first widely reported UFO sighting near Mount Rainier, Washington. | ||
||1969: Willy Ley dies ... science writer, spaceflight advocate, and historian of science who helped to popularize rocketry, spaceflight, and natural history in both Germany and the United States. Pic. | |||
||1969: Frank King dies ... cartoonist ''Gasoline Alley''. Pic. | ||1969: Frank King dies ... cartoonist ''Gasoline Alley''. Pic. | ||
||1969: Willy Ley dies ... historian and author. | ||1969: Willy Ley dies ... historian and author. Pic. | ||
||1978: Mstislav Vsevolodovich Keldysh dies ... scientist in the field of mathematics and mechanics. He was one of the key figures behind Soviet space program. Among scientific circles of USSR Keldysh was known with epithet "the Chief Theoretician". Pic. | ||1978: Mstislav Vsevolodovich Keldysh dies ... scientist in the field of mathematics and mechanics. He was one of the key figures behind Soviet space program. Among scientific circles of USSR Keldysh was known with epithet "the Chief Theoretician". Pic. | ||
||1990: William Kneale dies ... logician and philosopher ... best known for his 1962 book ''The Development of Logic'', a history of logic from its beginnings in Ancient Greece written with his wife Martha.Pic search | ||1990: William Kneale dies ... logician and philosopher ... best known for his 1962 book ''The Development of Logic'', a history of logic from its beginnings in Ancient Greece written with his wife Martha. Pic search. | ||
||1996: Peter Thullen dies ... mathematician. Pic. | ||1996: Peter Thullen dies ... mathematician. Pic. | ||
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||2013: James Martin dies ... computer scientist and author. | ||2013: James Martin dies ... computer scientist and author. | ||
File:Boxes.jpg|link=Boxes (nonfiction)|2016: Steganographic analysis of ''[[Boxes (nonfiction)|Boxes]]'' unexpectedly reveals previously unknown type of [[cryptographic numen]]. [[APTO]] | File:Boxes.jpg|link=Boxes (nonfiction)|2016: Steganographic analysis of ''[[Boxes (nonfiction)|Boxes]]'' unexpectedly reveals previously unknown type of [[cryptographic numen]]. [[APTO]] engineers call it "a remarkable breakthrough." | ||
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Latest revision as of 19:23, 6 February 2022
1709: The public test of the "Passarola", a primitive airship devised by priest and inventor Bartolomeu de Gusmão, fails to take place.
1880: Mathematician and academic Oswald Veblen born. His work will find application in atomic physics and the theory of relativity. Veblen will publish a paper (1912) on the Four color conjecture.
2008: Mathematician and academic Gerhard Ringel dies. Ringel was a pioneer of graph theory and contributed significantly to the proof of the Heawood conjecture (now the Ringel-Youngs theorem), a mathematical problem closely linked with the Four color theorem.
2016: Steganographic analysis of Boxes unexpectedly reveals previously unknown type of cryptographic numen. APTO engineers call it "a remarkable breakthrough."