Klarinet Archive - Posting 000363.txt from 1998/12

From: Roger Shilcock <roger.shilcock@-----.uk>
Subj: Re: [kl] Re: klarinet Digest 3 Dec 1998 09:15:01 -0000 Issue 778
Date: Mon, 7 Dec 1998 08:24:23 -0500

It might put you "six feet under" for all I know, but SF6 is *sulphur*
hexafluoride, not silane. As far as I know silane is SiH4.
Roger Shilcock

On Sun, 6 Dec 1998 Patticlar@-----.com wrote:

> Date: Sun, 6 Dec 1998 12:38:18 EST
> From: Patticlar@-----.com
> Reply-To: klarinet@-----.org
> To: klarinet@-----.org
> Subject: [kl] Re: klarinet Digest 3 Dec 1998 09:15:01 -0000 Issue 778
>
>
> In a message dated 12/3/98 1:14:45 AM, klarinet-digest-help@-----.org writes:
>
> <<Date: Thu, 3 Dec 1998 08:58:55 +0000 (GMT)
> To: klarinet@-----.org
> From: Roger Shilcock <roger.shilcock@-----.uk>
> Subject: Re: [kl] The helionet
>
> Where would UF6 vapour put us - apart from in the terminal ward????
> Roger S.
>
> On Wed, 2 Dec 1998, Grant Green wrote:
>
> > Date: Wed, 2 Dec 1998 18:22:14 -0800
> > From: Grant Green <gdgreen@-----.com>
> > Reply-To: klarinet@-----.org
> > To: klarinet@-----.org
> > Subject: Re: [kl] The helionet
> >
> > Ran a few figures:
> >
> > The speed of sound in air is proportional to the square root of (the
> > pressure divided by the density). I'll assume the pressure is a constant.
> > The density of a gas is roughly proportional to its molecular weight:
> >
> > He - 4 g/mol
> > dry air ~ 29 g/mol
> > CO2 - 44 g/mol
> > SF6 - 146 g/mol
> >
> > If we say that the speed of sound in air is "1", the speed of sound in He
> > is SQRT(29/4) @-----.8, and SF6 = SQRT(29/146)
> > @-----. So, playing on helium should raise the pitch by over an octave,
> > CO2 will send you a few steps flat, and SF6 would put you in the bass
> > clarinet range (or between bass and Eb contra).
> >
> > Enjoy!
> >
> > Grant>>
>
> I was just now reading this with the technical help of my husband who works in
> Silicon Valley, CA. He told me the breathing SF6 otherwise known as Silane
> would but you six feet under!
>
> Lets be careful folks,
>
> Patricia
>
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