Template:Selected anniversaries/October 2: Difference between revisions

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||1854 – Patrick Geddes, Scottish biologist, sociologist, geographer, and philanthropist (d. 1932)
||1854 – Patrick Geddes, Scottish biologist, sociologist, geographer, and philanthropist (d. 1932)
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, Czech-American geologist and engineer (d. 1963)
||1883 – Karl von Terzaghi, Czech-American geologist and engineer (d. 1963)

Revision as of 17:51, 25 February 2018