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photocell
What is a Photocell?
A photocell is basically an electronic device that detects light and sends a signal when exposed to light.

A Short History of the Photocell
In 1925 Westinghouse demoed the first photocell at the Electrical Show at Grand Central Palace in New York.





last edited (November 6, 2003) by BadAttitude, Number of views: 1438, Current Rev: 1

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