Sound Waves and Their Sources

Duration: 22

Year Published: 1933

Creator: Encyclopaedia Britannica Educ Corp

Format: 16mm

Color: B&W

Description: Demonstrates the production of sound waves from three sources: a vibrating string, a vibrating diaphragm, and a vibrating air column. Animated drawings symbolize the transmission of sound waves through air. The sound track contributes to graphic explanations of frequency amplitude, wave length, fundamentals, and harmonics.


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