synchronizing vibrations

[Stéphane Collin]

http://www.youtube.com/watch?v=W1TMZASCR-I

 

This is interesting, methinks.  How natural frequencies of vibrations are
influenced when driven by others.

I was sure that this would ring some Pianotech bells, by analogy.

 

Comments welcome, because probably interesting.

 

Stéphane Collin.

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