From: FJORDING@aol.com
Date: Fri, 20 Jul 2001 08:42:56 EDT
Subject: Re: helium and voice
To: balloon@balloonhq.com

In a message dated 7/20/01 8:41:56 AM Eastern Daylight Time, FJORDING writes:

<< In a message dated 7/20/01 7:11:03 AM Eastern Daylight Time, 
dacrofts@yahoo.com writes:
 
 << just to clear up how helium does alter the voice. I
  believe it is just the fact that the vocal chords are
  operating in a helium environment, as you breathe out
  and speak, rather than a physiological effect directly
  on the vocal chords; the vocal chords vibrate at a
  higher frequency because helium is less dense - >>
 
  Bravo! Finally some truth and accuracy on the subject. I wonder what the 
speed of sound is in a pure helium environment. What would an organ pipe or 
whistle do if blown with it? Not much information on this number available. 
Merek  >>