>Ron, > Very interesting. I am not implying an infinite stiffness anywhere and am >aware of the standing waves generated in the plate but maintain that they occur >as a result of the superposition of the traveling waves. I am not the least >bit suprised that a ten pound weight would cause the case and plate to flex. >What would be more interesting would the deflection be at far lower weights, >for example that of a tuning fork. Even this I think is much greater than the >pressure change exerted on the bridge by a string or a tuning fork. This is >the point of contention. >Regards, Robin Hufford The point I obviously am still failing to make is that the effect scales. A lesser weight would, I would think obviously, cause a lesser - but still real - deflection. Yes, even the vibrations from a tuning fork or vibrating string. Ron N
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