Template:Selected anniversaries/October 30: Difference between revisions

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File:Willebrord Snellius.jpg|link=|1626: Astronomer and mathematician [[Willebrord Snellius (nonfiction)|Willebrord Snellius]] dies. In 1615 he conducted a large-scale experiment to measure the circumference of the earth using triangulation, underestimating the circumference of the earth by 3.5%.
||1207: Oldest recorded solar eclipse identified ... mentioned in the Bible. Using a combination of the biblical text and an ancient Egyptian text, researchers were able to refine the dates of the Egyptian pharaohs, in particular the dates of the reign of Ramesses the Great. https://www.dnaindia.com/science/report-oldest-recorded-solar-eclipse-identified-2556386
 
File:Willebrord Snellius.jpg|link=Willebrord Snellius (nonfiction)|1626: Astronomer and mathematician [[Willebrord Snellius (nonfiction)|Willebrord Snellius]] dies. In 1615 he conducted a large-scale experiment to measure the circumference of the earth using triangulation, underestimating the circumference of the earth by 3.5%.
 
||1632: Christopher Wren born ... physicist, mathematician, and architect, designed St Paul's Cathedral. Pic.
 
||1735: Benjamin Franklin published "On the Usefulness of Mathematics," his only published article on mathematics, in the Pennsylvania Gazette.  


||1831: In Southampton County, Virginia, escaped slave Nat Turner is captured and arrested for leading the bloodiest slave rebellion in United States history.<nowiki>Insert non-formatted text here</nowiki>
||1831: In Southampton County, Virginia, escaped slave Nat Turner is captured and arrested for leading the bloodiest slave rebellion in United States history.<nowiki>Insert non-formatted text here</nowiki>
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||1844: Georges Henri Halphen born ... mathematician. He was known for his work in geometry, particularly in enumerative geometry and the singularity theory of algebraic curves, in algebraic geometry.  Pic.
||1844: Georges Henri Halphen born ... mathematician. He was known for his work in geometry, particularly in enumerative geometry and the singularity theory of algebraic curves, in algebraic geometry.  Pic.


||1857: Georges Gilles de la Tourette born ... physician and neurologist.
||1857: Georges Gilles de la Tourette born ... physician and neurologist. Pic.


||1864: Helena, Montana is founded after four prospectors discover gold at "Last Chance Gulch".
||1864: Helena, Montana is founded after four prospectors discover gold at "Last Chance Gulch".


||1878: Arthur Scherbius born ... electrical engineer who patented an invention for a mechanical cipher machine, later sold as the Enigma machine.
File:Arthur Scherbius.jpg|link=Arthur Scherbius (nonfiction)|1878: Electrical engineer and inventor [[Arthur Scherbius (nonfiction)|Arthur Scherbius]] born. He will invent and patent the famous mechanical cipher Enigma machine.


||1888: François Coignet dies ... industrialist of the nineteenth century. He was a pioneer in the development of structural prefabricated and reinforced concrete. Coignet was the first to use iron-reinforced concrete as a technique for constructing building structures.
||1888: François Coignet dies ... industrialist of the nineteenth century. He was a pioneer in the development of structural prefabricated and reinforced concrete. Coignet was the first to use iron-reinforced concrete as a technique for constructing building structures. Pic.


||1895: Gerhard Domagk born ... pathologist and bacteriologist, Nobel Prize laureate.
||1895: Gerhard Domagk born ... pathologist and bacteriologist, Nobel Prize laureate.
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||1895: Dickinson W. Richards born ... physician and physiologist, Nobel Prize laureate.
||1895: Dickinson W. Richards born ... physician and physiologist, Nobel Prize laureate.


||1903: Leonarde Keeler born ... co-inventor of the polygraph.
||1900: Ragnar Granit born ... neuroscientist and academic ... awarded the Nobel Prize in Physiology or Medicine in 1967 along with Haldan Keffer Hartline and George Wald "for their discoveries concerning the primary physiological and chemical visual processes in the eye". Pic (cool tech!).
 
||1903: Leonarde Keeler born ... co-inventor of the polygraph. Pic.


||1906: Andrey Nikolayevich Tikhonov born ... mathematician and geophysicist known for important contributions to topology, functional analysis, mathematical physics, and ill-posed problems. He was also one of the inventors of the magnetotellurics method in geophysics.  
||1906: Andrey Nikolayevich Tikhonov born ... mathematician and geophysicist known for important contributions to topology, functional analysis, mathematical physics, and ill-posed problems. He was also one of the inventors of the magnetotellurics method in geophysics. Pic.


||1907: Harold Davenport born ... mathematician, known for his extensive work in number theory. Pic.
||1907: Harold Davenport born ... mathematician, known for his extensive work in number theory. Pic.


||1909: Homi J. Bhabha born ... physicist and academic.
||1909: Homi J. Bhabha born ... physicist and academic. Pic.
 
File:Ascleplius Myrmidon Ypres ruins 1915.jpg|link=Asclepius Myrmidon|1916:  Time-travelling physician-warrior [[Asclepius Myrmidon]] arrives during a machine gun attack in western Europe, sets up emergency field hospital.


||1920: Naum Yakovlevich Vilenkin born ... mathematician, an expert in combinatorics. He is best known as the author of many books in recreational mathematics aimed at middle and high school students. Pic: https://www.goodreads.com/author/show/944039.N_Ya_Vilenkin
||1920: Naum Yakovlevich Vilenkin born ... mathematician, an expert in combinatorics. He is best known as the author of many books in recreational mathematics aimed at middle and high school students. Pic: https://www.goodreads.com/author/show/944039.N_Ya_Vilenkin
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File:John Logie Baird 1917.jpg|link=John Logie Baird (nonfiction)|1925: Engineer and inventor [[John Logie Baird (nonfiction)|John Logie Baird]] creates Britain's first television transmitter.
File:John Logie Baird 1917.jpg|link=John Logie Baird (nonfiction)|1925: Engineer and inventor [[John Logie Baird (nonfiction)|John Logie Baird]] creates Britain's first television transmitter.


||1926: Fabrizio de Miranda born ... bridges and structural engineer and university professor.
||1926: Fabrizio de Miranda born ... bridges and structural engineer and university professor. Pic.


||1928: Daniel Nathans born ... microbiologist and academic, Nobel Prize laureate.
||1928: Daniel Nathans born ... microbiologist and academic, Nobel Prize laureate. Pic.


||1938: Marina Evseevna Ratner born ... professor of mathematics at the University of California, Berkeley who worked in ergodic theory. She proved a group of major theorems concerning unipotent flows on homogeneous spaces, known as Ratner's theorems.
||1938: Marina Ratner born ... professor of mathematics at the University of California, Berkeley who worked in ergodic theory. She proved a group of major theorems concerning unipotent flows on homogeneous spaces, known as Ratner's theorems. Pic.


||1938: Orson Welles broadcasts his radio play of H. G. Wells's ''The War of the Worlds'', causing anxiety in some of the audience in the United States.
||1938: Orson Welles broadcasts his radio play of H. G. Wells's ''The War of the Worlds'', causing anxiety in some of the audience in the United States.
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||1942: Lt. Tony Fasson, Able Seaman Colin Grazier and canteen assistant Tommy Brown from HMS Petard board U-559, retrieving material which would lead to the decryption of the German Enigma code.
||1942: Lt. Tony Fasson, Able Seaman Colin Grazier and canteen assistant Tommy Brown from HMS Petard board U-559, retrieving material which would lead to the decryption of the German Enigma code.


||1946: William Paul Thurston born ... mathematician. He was a pioneer in the field of low-dimensional topology. In 1982, he was awarded the Fields Medal for his contributions to the study of 3-manifolds.  
||1946: William Paul Thurston born ... mathematician. He was a pioneer in the field of low-dimensional topology. In 1982, he was awarded the Fields Medal for his contributions to the study of 3-manifolds. Pic.


||1950: Rudolf Goldschmidt dies ... engineer and inventor. In 1908 he developed a rotating radio-frequency machine, the Goldschmidt alternator, which was used as an early radio transmitter.  He also invented a mechanical device, the Goldschmidt tone wheel, used in early radio receivers to receive the new continuous wave radiotelegraph signals. Pic.
||1950: Rudolf Goldschmidt dies ... engineer and inventor. In 1908 he developed a rotating radio-frequency machine, the Goldschmidt alternator, which was used as an early radio transmitter.  He also invented a mechanical device, the Goldschmidt tone wheel, used in early radio receivers to receive the new continuous wave radiotelegraph signals. Pic.
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||1961: The Soviet Union detonates the Tsar Bomba over Novaya Zemlya; equivalent to 57 megatons of TNT, it remains the largest explosive device ever detonated, nuclear or otherwise.
||1961: The Soviet Union detonates the Tsar Bomba over Novaya Zemlya; equivalent to 57 megatons of TNT, it remains the largest explosive device ever detonated, nuclear or otherwise.


||1975: Gustav Ludwig Hertz dies ... physicist and academic, Nobel Prize laureate.
||1975: Gustav Ludwig Hertz dies ... physicist and academic, Nobel Prize laureate. Pic.


||1976: Alfred Landé dies ... physicist known for his contributions to quantum theory. He is responsible for the Landé g-factor and an explanation of the Zeeman effect.
||1976: Alfred Landé dies ... physicist known for his contributions to quantum theory. He is responsible for the Landé g-factor and an explanation of the Zeeman effect.


||1979: Barnes Wallis dies ... scientist and engineer, invented the "bouncing bomb".
||1979: Barnes Wallis dies ... scientist and engineer, invented the "bouncing bomb". Pic.


||1985: Space Shuttle Challenger lifts off for mission STS-61-A, its final successful mission.
||1985: Space Shuttle Challenger lifts off for mission STS-61-A, its final successful mission.


||1989: Aristid Lindenmayer dies ... biologist. In 1968 he developed a type of formal languages that is today called L-systems or Lindenmayer Systems. Using those systems Lindenmayer modelled the behaviour of cells of plants. L-systems nowadays are also used to model whole plants. Lindenmayer worked with yeast and filamentous fungi and studied the growth patterns of various types of algae, such as the blue/green bacteria Anabaena catenula. Originally the L-systems were devised to provide a formal description of the development of such simple multicellular organisms, and to illustrate the neighbourhood relationships between plant cells. Later on, this system was extended to describe higher plants and complex branching structures. Pic: https://alchetron.com/Aristid-Lindenmayer
||1989: Aristid Lindenmayer dies ... biologist. In 1968 he developed a type of formal languages that is today called L-systems or Lindenmayer Systems. Using those systems Lindenmayer modelled the behaviour of cells of plants. L-systems nowadays are also used to model whole plants. Lindenmayer worked with yeast and filamentous fungi and studied the growth patterns of various types of algae, such as the blue/green bacteria Anabaena catenula. Originally the L-systems were devised to provide a formal description of the development of such simple multicellular organisms, and to illustrate the neighbourhood relationships between plant cells. Later on, this system was extended to describe higher plants and complex branching structures. Pic: https://alchetron.com/Aristid-Lindenmayer
||1992: The Vatican announced that a 13-year investigation into the Catholic Church’s condemnation of Galileo in 1633 will come to an end and that Galileo was right: The Copernican Theory, in which the Earth moves around the Sun, is correct and they erred in condemning Galileo. *New York Times for 31 October 1992.


||2006: Clifford James Geertz born ... an American anthropologist who is remembered mostly for his strong support for and influence on the practice of symbolic anthropology, and who was considered "for three decades...the single most influential cultural anthropologist in the United States." Pic.
||2006: Clifford James Geertz born ... an American anthropologist who is remembered mostly for his strong support for and influence on the practice of symbolic anthropology, and who was considered "for three decades...the single most influential cultural anthropologist in the United States." Pic.
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File:Claude Lévi-Strauss receiving Erasmus Prize (1973).jpg|link=Claude Lévi-Strauss (nonfiction)|2009: Anthropologist and ethnologist [[Claude Lévi-Strauss (nonfiction)|Claude Lévi-Strauss]] dies.  His work was key in the development of the theory of structuralism and structural anthropology.
File:Claude Lévi-Strauss receiving Erasmus Prize (1973).jpg|link=Claude Lévi-Strauss (nonfiction)|2009: Anthropologist and ethnologist [[Claude Lévi-Strauss (nonfiction)|Claude Lévi-Strauss]] dies.  His work was key in the development of the theory of structuralism and structural anthropology.


File:Blue Green Blossom.jpg|link=Blue Green Blossom (nonfiction)|2016: Signed first edition of ''[[Blue Green Blossom (nonfiction)|Blue Green Blossom]]'' used in [[high-energy literature]] experiment develops [[Artificial intelligence (nonfiction)|artificial intelligence]], demands copyright autonomy.
||2011: Jonas Kubilius dies ... mathematician who worked in probability theory and number theory.  Pic.


File:Asclepius Myrmidon Prepares for Emergency Field Surgery.jpg|link=Asclepius Myrmidon Prepares for Emergency Field Surgery|2017: Steganographic analysis of the well-known illustration ''Asclepius Myrmidon Prepares for Emergency Field Surgery'' reveals nearly two terabytes of encrypted data.
||2012: After Hurricane Sandy came ashore in New Jersey on the 29th, the huge weather system was captured with an overlay to emphasize it's Fibonacci-like structure. *HT to Bob Mrotek for sending me this image. https://pballew.blogspot.com/2018/10/on-this-day-in-math-october-30.html


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Latest revision as of 14:36, 7 February 2022

  • 1626: Astronomer and mathematician Willebrord Snellius dies. In 1615 he conducted a large-scale experiment to measure the circumference of the earth using triangulation, underestimating the circumference of the earth by 3.5%.

    1626: Astronomer and mathematician Willebrord Snellius dies. In 1615 he conducted a large-scale experiment to measure the circumference of the earth using triangulation, underestimating the circumference of the earth by 3.5%.

  • 1878: Electrical engineer and inventor Arthur Scherbius born. He will invent and patent the famous mechanical cipher Enigma machine.

    1878: Electrical engineer and inventor Arthur Scherbius born. He will invent and patent the famous mechanical cipher Enigma machine.

  • 1925: Engineer and inventor John Logie Baird creates Britain's first television transmitter.

    1925: Engineer and inventor John Logie Baird creates Britain's first television transmitter.

  • 2008: Mathematician, social activist, and crime-fighter Irving Adler publishes evidence that high-level crimes against mathematical constants have been covered up by the government for decades.

    2008: Mathematician, social activist, and crime-fighter Irving Adler publishes evidence that high-level crimes against mathematical constants have been covered up by the government for decades.

  • 2009: Anthropologist and ethnologist Claude Lévi-Strauss dies. His work was key in the development of the theory of structuralism and structural anthropology.

    2009: Anthropologist and ethnologist Claude Lévi-Strauss dies. His work was key in the development of the theory of structuralism and structural anthropology.

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