In a message dated 1/29/2011 1:56:45 P.M. Central Standard Time, rnossaman at cox.net writes: I read about a clock maker who noticed that the pendulums of all the clocks on the same wall, all with the same internal works, tended to synchronize with one another while the one on another wall didn't. Strings in a unison do that too. Here is the demonstration of that priniciple: _http://www.youtube.com/watch?v=W1TMZASCR-I_ (http://www.youtube.com/watch?v=W1TMZASCR-I) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110129/f769b9e9/attachment.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC