Hear better: healthy ears
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Opens with a summary of the pleasures that result from hearing well. The structure of the ear is shown in detail and the process of receiving air vibrations and transmitting them into sounds is explained. Concludes with general information on how to take care of the ears.
Sources
- 16mm Filmography (legacy record) — title, description, catalog record
Original permalink · Record added 2026-01-23 03:35:32