Why Does Breathing Helium Make Your Voice So High? - S1.E3
The discovery of how the density of several elements affects sound, what is needed for sound to be present, and how sound works. The pitch of a person's voice compared to that of a musical instrument is discussed, along with how changing the speed of sound affects the pitch of the voice, and how the pitch can be changed.
Why Does Breathing Helium Make Your Voice So High? - S1.E3
September 26, 1999
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