Template:Selected anniversaries/October 30: Difference between revisions
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||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 | ||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=|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=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. | ||1632: Christopher Wren born ... physicist, mathematician, and architect, designed St Paul's Cathedral. Pic. | ||
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||1909: Homi J. Bhabha born ... physicist and academic. Pic. | ||1909: Homi J. Bhabha born ... physicist and academic. Pic. | ||
||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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||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. | ||
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||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 | ||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%.
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.
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.