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1942 - a tiny electric lamp producing one candlepower

MEASURING ONE FOOT CANDLE -- ABRAHAM LINCOLNíS LIGHT

CD 1964025 E&MP26.009

Electric Light

December 30, 1942

This is an example of one footcandle of light (that which Abraham Lincoln read by in his early youth) as demonstrated in the General Electric Illuminating Laboratory at Schenectady, N.Y. The light is produced by a tiny electric lamp producing one candlepower and placed in the center of a one foot radius sphere. An engineer is shown reading a book under the illumination. 


Original Caption by Science Service
©General Electric



National Museum of American History

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