Willoughby Smith

Standard Name: Smith, Willoughby

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1866: Willoughby Smith discovered that light lowers...

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1866

Willoughby Smith discovered that light lowers electrical resistance of selenium rods. This, the "photoelectric effect," is the basic principle behind fax machines and televisions.
McNeil, Ian, editor. An Encyclopedia of the History of Technology. Routledge, 1996.
743-4

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