Template:Selected anniversaries/October 2: Difference between revisions

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||1853: François Arago dies ... mathematician, physicist, astronomer, and politician, 25th Prime Minister of France.
||1853: François Arago dies ... mathematician, physicist, astronomer, and politician, 25th Prime Minister of France.


||1854: Patrick Geddes born ... biologist, sociologist, geographer, and philanthropist (d. 1932)
||1854: Patrick Geddes born ... biologist, sociologist, geographer, and philanthropist.


File:François Arago.jpg|link=François Arago (nonfiction)|1853: Mathematician and politician [[François Arago (nonfiction)|François Arago]] born.  He observed that a rotating plate of copper tends to communicate its motion to a magnetic needle suspended over it, an effect now known as eddy current.  
File:François Arago.jpg|link=François Arago (nonfiction)|1853: Mathematician and politician [[François Arago (nonfiction)|François Arago]] born.  He observed that a rotating plate of copper tends to communicate its motion to a magnetic needle suspended over it, an effect now known as eddy current.  


||1883: Karl von Terzaghi born ... geologist and engineer.
||1883: Karl von Terzaghi born ... geologist and engineer.
||1886: Astronomer Robert Julius Trumpler born. He will observe that the brightness of the more distant open clusters is lower than expected, and the stars appear more red, a phenomenon caused by interstellar dust absorbing interstellar light.


File:Édouard Lucas.png|link=Édouard Lucas (nonfiction)|1890: Mathematician and crime-fighter [[Édouard Lucas (nonfiction)|Édouard Lucas]] translates the Fibonacci sequence into a series of [[Gnomon algorithm functions]] which will quickly find application in the detection and prevention of [[crimes against mathematical constants]].  
File:Édouard Lucas.png|link=Édouard Lucas (nonfiction)|1890: Mathematician and crime-fighter [[Édouard Lucas (nonfiction)|Édouard Lucas]] translates the Fibonacci sequence into a series of [[Gnomon algorithm functions]] which will quickly find application in the detection and prevention of [[crimes against mathematical constants]].  

Revision as of 07:20, 19 June 2019