I was a partner in a studio for 10 years (sound engineer) the stuff in
the fog machine is propylene glycol. Same substance used in most
e-cigarettes. In fact they proably evolved from fog machines.
DO NOT mix fog machine fog with a bubble machine! lol
I tried making fog bubbles and it does work but the mess it makes is
horrable! if you hit the fog bubbles with a scanned laser the effect is
very cool.
-------- Original Message --------
Subject: [AR] Re: scuba or astronaut gas temperature question
From: David Weinshenker <daze39@xxxxxxxxxxxxx>
Date: Sat, August 22, 2015 10:25 am
To: arocket@xxxxxxxxxxxxx
Henry Vanderbilt wrote:
Mind, there's a good chance what you've seen was actually produced by a
"fog machine" atomizing some sort of glycerin or oil. Widely used for
stage fog, and the result does persist as you've described.
https://en.wikipedia.org/wiki/Fog_machine
I've never liked those, mind - inhaling the results is allegedly
harmless, but I've always had my doubts.
Apparently a lot of opera singers would agree with you - machine-produced
fog effects are apparently very popular with the stage directors, but the
singers complain that the fog makes their throats sore. :(
-dave w