Mayor (Helene, you're the mayor now, mesmerize with a bit more
how microphones work: A microphone begins with a metal diaphragm that bends back and forth when it is struck by sound waves. When it bends in, it is called compression.
When there is no sound, the diaphragm is flat. At this point its negatively charge exactly balances the positive charge of the fixed plate. When rarefaction (not really a rare occurance) takes place, the negatively charged metal diaphragm moves away from the fixed plate. Then the negative electrons in the diaphragm repel each other and the flow out of the diaphragm, causing an opposite flow of electrons from the flow that occurs in compression.
These signals are exactly in phase and amplitude to the sound waves hitting the diaphragm. They are usually sent to an amplifier for further processing.
if you can't be with the one you hate, hate the one you're with...
3 comments:
Why must we always have a least one Miss Piggy on the Santa Barbara City Council!!!
I'm afraid there are more than a few priggish politicians out there..
you're right though, Mayor Helene DID show a surprising bit of cleavage on her opening night with the gavel---go Helene!
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