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Change in Frequency of Voice with Helium

Helium introduced into a resonant cavity, including the lungs of the demonstrator, will increase the frequency of all pitches originating in the cavity.  This is because the speed of sound in helium is greater than the speed of sound in air.

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MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated over 1 year ago

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July 26, 2012 12:00
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