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2. The sudden release of air from the popped bag or balloon causes a
disturbance or wave in the surrounding air (in simple terms it "shakes"
the surrounding air for a moment). This sudden disturbance (release of
energy) to the surrounding air then propagates outward as an ordinary
sound (i.e., pressure) wave. This is what you hear.
(I have absolutely zero problems with this pop being heard a long
distance away from the source, it is simply a sound wave.)
a
conservation of air molecules argument that implies that the extra air
molecules that are released have to go somewhere and as they escape they
cause a local increase in air pressure that your ears hear since the air
pressure momentarily increases at your ears as the molecules in the
surrounding air adapt to the extra molecules you just released.
This argument makes no sense to me and without actually calculating the
increase in the air pressure 100 meters away, I just don't see that it
would be a very loud pressure sensation to your ear.
Comments?
Thanks,
John
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John E. Sohl, Ph.D.