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  HeyyDude <HeyyDude@ao*.co*> wrote (SUbject: A Question of Gas...):-

> ... diluent ... Helium ... I sound like donald duck ... Now, if I use a
> different "noble" gas (such as Neon) as my diluent, how would this affect my
> voice?  Would it sound deeper than normal, or close to that of Helium?

  The high-pitched voice caused by helium is caused not by its unreactiveness
but by the lightness of its molecules (H2 = 2, He = 4, N2 = 28, O2 = 32), so
the vocal cords can move faster. What is the voice pitch like when breathing
hydrogen-oxygen mixture? I have heard of hydrogen as a diving diluent despite
its explosiveness.

  (P.S. Another `Question of Gas' is when the dive boat's course and also the
wind are steady and you find that you are straight downwind from the carbon
mo(NOx)ious blastings from the dive boat's engine's dirty brrrm pipe. Unlike
in a land vehicle which is fast enough to always leave it behind.)

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