Sounds That Can't Be Heard

Creator: Natl Assn Of Manufacturers Film Service Bureau

Format: 16mm

Sound: sound

Description: Introduces ultra-sonic vibration and tells how it is used for measuring the quality of 'MEAT ON THE HOOF,' in working with radar and sonar, in detecting flaws in metals and in precision cutting and drilling.

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Original permalink · Record added: 2023-02-27 04:16:07