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%. | 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%. | ||
||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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||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. | ||
||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 | |||
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. | 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. | ||
Revision as of 07:07, 30 October 2018
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%.
1916: Time-travelling physician-warrior Asclepius Myrmidon arrives during a machine gun attack in western Europe, sets up emergency field hospital.
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.
2009: Anthropologist and ethnologist Claude Lévi-Strauss dies. His work was key in the development of the theory of structuralism and structural anthropology.
2016: Signed first edition of Blue Green Blossom used in high-energy literature experiment develops artificial intelligence, demands copyright autonomy.
2017: Steganographic analysis of the well-known illustration Asclepius Myrmidon Prepares for Emergency Field Surgery reveals nearly two terabytes of encrypted data.