Template:Selected anniversaries/April 9: Difference between revisions

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||1791: George Peacock born ... mathematician. Pic.
||1791: George Peacock born ... mathematician. Pic.
File:Joseph-Louis Lagrange.jpg|link=Joseph-Louis Lagrange (nonfiction)|1805: Mathematician and crime-fighter [[Joseph-Louis Lagrange (nonfiction)|Joseph-Louis Lagrange]] delivers lecture on applications of number theory to the detection and prevention of [[crimes against mathematical constants]].


||1806: Isambard Kingdom Brunel born ... mechanical and civil engineer who is considered "one of the most ingenious and prolific figures in engineering history". Pic.
||1806: Isambard Kingdom Brunel born ... mechanical and civil engineer who is considered "one of the most ingenious and prolific figures in engineering history". Pic.
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File:Edouard-Léon Scott de Martinville.jpg|link=Édouard-Léon Scott de Martinville (nonfiction)|1860: On his phonautograph machine, [[Édouard-Léon Scott de Martinville (nonfiction)|Édouard-Léon Scott de Martinville]] makes the oldest known recording of an audible human voice. A visual recording of audio data, it will first be played back in 2008.
File:Edouard-Léon Scott de Martinville.jpg|link=Édouard-Léon Scott de Martinville (nonfiction)|1860: On his phonautograph machine, [[Édouard-Léon Scott de Martinville (nonfiction)|Édouard-Léon Scott de Martinville]] makes the oldest known recording of an audible human voice. A visual recording of audio data, it will first be played back in 2008.
File:Wilhelm Röntgen.jpg|link=Wilhelm Röntgen (nonfiction)|1864: Engineer and physicist [[Wilhelm Röntgen (nonfiction)|Wilhelm Röntgen]] uses X-rays generator to expose [[Loaded dice (nonfiction)|loaded dice]], reveals organized [[math crime]] cartel in casinos around the world.


File:Charles Proteus Steinmetz.jpg|link=Charles Proteus Steinmetz (nonfiction)|1865: Mathematician and electrical engineer [[Charles Proteus Steinmetz (nonfiction)|Charles Proteus Steinmetz]] born. Steinmetz will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States.
File:Charles Proteus Steinmetz.jpg|link=Charles Proteus Steinmetz (nonfiction)|1865: Mathematician and electrical engineer [[Charles Proteus Steinmetz (nonfiction)|Charles Proteus Steinmetz]] born. Steinmetz will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States.
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||1894: Alfred Theodor Brauer born ... mathematician who did work in number theory. Pic.
||1894: Alfred Theodor Brauer born ... mathematician who did work in number theory. Pic.
File:Moritz Benedikt Cantor.jpg|link=Moritz Cantor (nonfiction)|1895: Mathematician, historian, and [[APTO]] librarian [[Moritz Cantor (nonfiction)|Moritz Cantor]] publishes his monumental study ''Vorlesungen über Geschichte der Gnomonik'', which traces the history of [[Gnomon algorithm]] theory up to 1799.


||1900: Vladimir Borisovich Rojansky born ... physicist, author and educator. Antimatter. Pic: https://www.aip.org/history-programs/niels-bohr-library/photos/rojansky-vladimir-d1
||1900: Vladimir Borisovich Rojansky born ... physicist, author and educator. Antimatter. Pic: https://www.aip.org/history-programs/niels-bohr-library/photos/rojansky-vladimir-d1
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||2016: Duane Clarridge dies ... spy. Pic search.
||2016: Duane Clarridge dies ... spy. Pic search.


File:Green Tangle.jpg|link=Green Tangle (nonfiction)|2018: ''[[Green Tangle (nonfiction)|Green Tangle]]'' voted Picture of the Day by the citizens of [[New Minneapolis, Canada]].


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Revision as of 21:04, 26 January 2022

  • 1770: Physicist and academic Thomas Johann Seebeck born. Seebeck will discover the thermoelectric effect.

    1770: Physicist and academic Thomas Johann Seebeck born. Seebeck will discover the thermoelectric effect.

  • 1860: On his phonautograph machine, Édouard-Léon Scott de Martinville makes the oldest known recording of an audible human voice. A visual recording of audio data, it will first be played back in 2008.

    1860: On his phonautograph machine, Édouard-Léon Scott de Martinville makes the oldest known recording of an audible human voice. A visual recording of audio data, it will first be played back in 2008.

  • 1865: Mathematician and electrical engineer Charles Proteus Steinmetz born. Steinmetz will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States.

    1865: Mathematician and electrical engineer Charles Proteus Steinmetz born. Steinmetz will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States.

  • 1978: Musician and alleged math criminal Skip Digits performs at the Kennedy Center for the Arts.

    1978: Musician and alleged math criminal Skip Digits performs at the Kennedy Center for the Arts.

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