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1938 - a photo-electric coil keeps the temperature inside this new electric furnace within 10 degrees of 1,000 degrees Fahrenheit

"CREEP" OF METAL UNDER TERRIFIC HEAT

CD1963008 E&MP19.005

Electric Furnaces

May 1938

A photo-electric coil keeps the temperature inside this new electric furnace within 10 degrees of 1,000 degrees Fahrenheit, while Westinghouse engineers record the stretch or "creep" of metals under the terrific hear. 

Original Caption by Science Service
Westinghouse



National Museum of American History

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