Sound Waves

Duration: 11 min

Genre: Natural Science

Creator: Bray

Format: 16mm

Color: B&W

Sound: Silent

Description: (a) Actual Photography of Sound Waves, made at Cornell University, demonstrating principle underlying wireless communications. (b) How the Telephone Talks, practical application, with animated technical drawings.

Metadata Source:Bell & Howell Filmosound Library Catalog of Educational Motion Pictures, 1942