Sound Waves
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✎ Suggest a correction(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.
Credits
- Produced by
- Frank Wells
Sources
- Bell & Howell Filmosound Library Catalog of Educational Motion Pictures, 1942 — title, creator, length, format, color, sound, genre, description
- Wikidata · Q123374247 ↗ — year, country, credits
Record added 2026-09-27 14:20:41 · Suggest a correction