Dear Doctor, I will post the science on this when I get back next week as I'm Leaving for San Francisco tomorrow. Hold that thought. Michael Thames Luthier www.ThamesClassicalGuitars.com Site design by Natalina Calia-Thames ----- Original Message ----- From: "Doctor Oakroot" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, December 11, 2003 9:41 PM Subject: Re: a rosette by any other name...
> Michael, your physicist friend didn't understand the problem. As Bob > described it the amount of beer in the bottle during the experiment was > fixed. Only the size of the opening changed. > > Michael Thames wrote: > > I've just spoken to my physicist friend, and he explained it like this. > > When you have a beer bottle and blow into it, the pitch changes according > > to how much beer ( air volume) is in the bottle. > > Bob, what has the most significant effect on the pitch is how much beer > > you consumed during your experiment! > > Michael Thames > > Luthier > > www.ThamesClassicalGuitars.com > > Site design by Natalina Calia-Thames > > ----- Original Message ----- > > From: "BobClair or EkkoJennings" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Thursday, December 11, 2003 8:48 AM > > Subject: a rosette by any other name... > > > > > >> > >> Philippe Mottet <[EMAIL PROTECTED]> writes: > >> > >> > I think M. Thames is right when he mentions that a bigger opening, a > >> > rosette with a longer diameter and an airy (?) motive, tends to favor > > bass > >> > and fundamental resonances. > >> > >> And you, also, would be incorrect. I'm not trying to be mean or rude, > >> you > > are entitled to > >> believe whatever makes you happy. But unlike some more subjective > >> things, > > like whether a > >> note is "sparkling" or not, the pitch of the main air resonance of a > > guitar or lute or violin > >> and what happens to that pitch as you make the hole(s) in the top > >> smaller > > (it goes down) are objective > >> things that you can easily measure with a simple experiment. They are no > > more influenced by how you think > >> or feel about them than is the height of the Eiffel tower. > >> > >> As for "this particular rose design causes those particular tonal > > qualities" - there are just way too many > >> variables involved. Making such a statement on the basis of one or two > > instruments is nothing more > >> than a superstition. To make any meaningful statement you would have to > > make two batches of otherwise > >> identical instruments with twodifferent rose patterns and then show > >> that, > > on average, a pair with different > >> roses had a significant difference in the quality you were testing for > > compared to a pair with the same rose design. > >> At this point it would be wise to recall a statement attributed to > >> Michael > > Lowe: "An exact copy of a historical instrument ? > >> I can't even make an exact copy of one of my own instruments." > >> > >> Pendulums ? Divining ? Dowsing? Mysterious Energy ? My contract with the > > Physicist's Union has a clause limiting > >> the amount of time I have to spend arguing with believers so I will just > > leave with a single > >> word: "unlikely". > >> > >> > >> .....Bob > >> > >> ____________________________________________________________ > >> ____________________________________________________________ > >> > >> Replies: (remove the "ZZZZ") > >> > >> Ekko Jennings: [EMAIL PROTECTED] > >> Bob Clair: [EMAIL PROTECTED] > >> > >> > > > > > > > > > > > -- > Rough-edged songs from a dark place in the soul: > http://DoctorOakroot.com > >
