Sujet
Government scientists conducting tests on electrical current circa 1938.
Légende
Government experts discover 'perpetual' electrical current. Washington, D.C., March 10. Dr. F.B. Silsbee (left) and Dr. F.G. Brickwedge, of the Bureau of Standards, have just concluded experiments which have proved that an electric current, cut off from its original source, will flow eternally round and round a coiled tin wire circuit when the wire is subjected to 450-degree-below-zero temperature. The tests were made in a new effort to understand what electricity really is, 3/10/38
Crédit
Photo12/UIG/HUM Images
Notre référence
UMG21A21_353
Model release
Non
Property release
Non
Licence
Droits gérés
Format disponible
45,1Mo (2,0Mo) / 37,5cm x 30,2cm / 4424 x 3565 (300dpi)