Klarinet Archive - Posting 000038.txt from 2010/12

From: Fred <vze2bsbs@-----.net>
Subj: Re: [kl] Snake Charmers
Date: Fri, 03 Dec 2010 18:35:36 -0500

I guess a "mathematically literate" anything could do it- that
statement is sort of meaningless. But if it was meant to rile me for
(assumed) lack of mathematical ability, there may be another 4 month
thread approaching. We ALL aren't engineers you know. :)

And I am aware that the digest people are getting p***** o*** at the
length of this message. So how come they have stopped complaining about that?

Fred

At 05:58 PM 12/3/2010, you wrote:
>Yes. At my usual consultancy rates, surely worth it to nail your obsession?
>:-)
>
>(but then, so could a mathematically literate school pupil)
>
>Keith
>
>-----Original Message-----
>From: Fred [mailto:vze2bsbs@-----.net]
>Sent: 03 December 2010 19:23
>To: The Klarinet Mailing List
>Subject: Re: [kl] Snake Charmers
>
>Now could you calculate the coefficient of friction necessary to
>exist at the clarinet's joints to prevent the clarinet from flying
>apart at these speeds?
>
>I always have been obsessed with that thought.
>
>Fred
>
>
>At 01:11 PM 12/3/2010, you wrote:
> >This sort of factual commentary is exactly why I have kept my
> >subscription to Klarinet all these years!
> >
> >:~)
> >
> >Joseph D. Vaccarino
> >clarinet@-----.com
> >
> >On Dec 3, 2010, at 1:05 PM, Tim Roberts wrote:
> >
> > > "Jim Lytthans" <lytthans@-----.net>
> > >> I've been reading the many, many comments on moving clarinetists. My
>real
> > >> issue with over-done movement with wind players is the Doppler
> > effect. I can
> > >> hear this moving train pitch shift on recordings of clarinetists
> > especially,
> > >> and also with flutists and oboists.
> > >
> > > My initial reaction was to scoff at this. Intuitively, it seemed
> > > impossible that a clarinetist could generate enough speed to Doppler
> > > shift the pitch to a detectable degree. Being an engineer, I decided to
> > > run the numbers.
> > >
> > > I read that a frequency difference of 0.3% is detectable by the human
> > > ear. Running that through the Doppler equations, it would require a
> > > velocity of 0.5 meters per second to generate that difference.
> > >
> > > So, I no longer scoff. It's quite possible for an over-enthusiastic
> > > player to move their bell at a rate higher than 0.5m/s.
> > >
> > > --
> > > Tim Roberts, timr@-----.com
> > > Providenza & Boekelheide, Inc.
> > >
> > > _______________________________________________
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> >
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>
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