Excursions in Science No. 2
Excursions in Science No. 2
orologio Excursions in Science No. 2 en Altadefinizione. Toothless gears (actuated by magnetism); a photoelectric sorter, for beans; the manufacture of lamps. Well photographed and adequately narrated, this holds interest all through. Especially absorbing is the last section.
- Genere: Documentario
- Nazione: United States
- Direttore:
- Cast:
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