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1941 - one-fifth as bright as the surface of the sun, is completely surrounded by a cooling-jacket carrying running water

LAMP RIVALS SUN

CD 1964060 E&MP27.020

Electric Lighting

1941

An experimental 10,000 Watt mercury-vapor lamp set wrapping paper a short distance away afire when S.G. Hibben, Director of Applied Lighting, Westinghouse Lamp Laboratories, Bloomfield, N.J. displayed it to a conference of university deans and professors, Oct. 18. The lamp. one-fifth as bright as the surface of the sun, is completely surrounded by a cooling-jacket carrying running water. Nevertheless, infra-red radiations fought through the lampís water-jacket to fire the paper in a few seconds. 


Original Caption by Science Service
©Westinghouse



National Museum of American History

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