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The Nature Of Sound (1948)

Boy uses his radio equipment to demonstrate how sound is produced and transmitted.

Released Jan. 1, 1948 11 min None+
Runtime: 11 min.
Released: Jan. 1, 1948
Status: Released
Certification: NR

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Updated: 1 week, 4 days ago
Next update: 1 year, 3 months from now
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