----- Original Message ----- From: "Mr. Mac's" <tune-repair at allegiance.tv> To: <pianotech at ptg.org> Sent: Sunday, January 30, 2011 1:34 PM Subject: [pianotech] Q & A Roundtable (metronomes) > Ron, Paul, (now there's a heck of a coincident) > > Finally got that video to show without doing anything extra. > It was fascinating to watch, but I don't get what actually happened or > why. > > Moving the platform of the metronomes onto the aluminum cans didn't help > me at all either. > > Any simple offering to help one in need to know what actually happened > here? > > If not, that's okay. Maybe it will come to me later on down the road, like > the video did > > Keith > >> Ron, >> >> I can't seem to get that YouTube clip to activate. >> >> Did you sign in or sign up to do so? >> >> Keith >> >> On Jan 29, 2011, at 2:31 PM, Ron Nossaman wrote: >> >> > On 1/29/2011 2:08 PM, PAULREVENKOJONES at aol.com wrote: >> >> 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 >> > >> > Yes, and a good one. Note that if the period of one is close enough to >> > those around it, they'll synchronize, like the ones on the right. If >> > they're too far off, like the two on the left, they won't lock in. In >> > unison strings, when you hear an obvious beat, they're too far off to >> > lock in. When you hear the yow, they're trying to synchronize, but the >> > attack is still objectionable. >> > Ron N >> >>
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