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1938 - two giant spheres used to measure high voltages in lightning tests

SUNSHINE AND SHADOW

E&MP 72.097

Artificial Lightning

ca. 1938

A thin beam of sunshine streaming through a slit in the darkened laboratory made possible this eerie study of the two giant spheres which are used to measure high voltages in lightning tests at the Westinghouse works in Sharon, Pa.

248725 No. 8 (2 of 2 072.076)

Original Caption by Science Service
Westinghouse



National Museum of American History

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