Films produced by A O Bondy

Laboratory experiments which later are applied to practical use are detailed here. Among the problems attempted and executed are the preparation of...

Toothless gears (actuated by magnetism); a photoelectric sorter, for beans; the manufacture of lamps. Well photographed and adequately narrated, this...

Deals with liquid air, magnetic thickness gages, and the cathode ray oscillograph.

The third in the interesting series demonstrating developments in the various fields of science. These reels have a strong appeal for all those of a...

The marvels of the "Electric Eye" scientifically known as the photo electric cell are very entertainingly presented in this industrial from the...

Scientific accomplishments: a demonstration of magnets that push as as pull, causing an object to float in the air; "walking oil," which mixes with...

The fascinating subject of crystal. Narration at footage's outset pointedly conveys that while there may have been little science in the mystic...

Laboratory experiments which later are applied to practical use are detailed here. Among the problems attempted and executed are the preparation of...

Toothless gears (actuated by magnetism); a photoelectric sorter, for beans; the manufacture of lamps. Well photographed and adequately narrated, this...

Deals with liquid air, magnetic thickness gages, and the cathode ray oscillograph.

The third in the interesting series demonstrating developments in the various fields of science. These reels have a strong appeal for all those of a...