Excursions in Science No. 4

Name: Excursions in Science No. 4
Genre: وثائقي
Released: 1937-07-26
Duration: 9 min

وثائقي

1937•

9د

القصة

The marvels of the "Electric Eye" scientifically known as the photo electric cell are very entertainingly presented in this industrial from the laboratories of General Electric. A narrator explains everything in popular language.