You wrote;
> Now the resultant frequency (resonant) will be fed through an
> inverting amplifier (Class A) and output from the transducer,
> which will effectively cancel (or severely reduce) the resonant
> frequency at that part of the wall. This would effectively cause
> molecular motion to slow....
Excellent, tapping the resonant frequency of a mass, phase conjugating
it so snuff its own natural motion....thanks...
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