Klarinet Archive - Posting 000298.txt from 1998/12

From: Patticlar@-----.com
Subj: [kl] Re: klarinet Digest 3 Dec 1998 09:15:01 -0000 Issue 778
Date: Sun, 6 Dec 1998 16:31:01 -0500

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)
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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