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Ultrasound

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This is an old revision of this page, as edited by The Anome (talk | contribs) at 14:04, 19 May 2002 (vibrations with frequencies too high to be audible by the human ear.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Ultrasound is defined as sound of vibrations with frequencies too high to be audible by the human ear. Some sound that is ultrasound to the human ear can be heard by animals, such as dogs. Ultrasound has industrial and medical applications, e.g. as an alternative to X-rays.

See also physics, light.


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