Date: Wed, 02 Feb 2011 15:12:10

Author: --- John Welch

Subject: Re: Methane and Flammable Smoke Rings?


In the youtube airzooka video - it sure looks like they are using
acetylene or oxygen+acetylene. And they use a map gas torch instead of
a candle.

Chuck Patten wrote:

or try super-chilling the base of the tube to make the mixture more dense
for better range and cohesion of the gas ring...


-----Original Message-----
From: [] On
Behalf Of William Beaty
Sent: Monday, January 24, 2011 7:09 PM
To: ''
Subject: Re: [tap-l] Methane and Flammable Smoke Rings?

Propane in Airzooka

Tilt it until the last second so gas doesn't all escape.
Perhaps add smoke, for easy tracking.

On Mon, 24 Jan 2011, Matt Lowry wrote:

A colleague and I were just testing out our new big smoke-ring cannon,
which works beautifully (thanks for all the advice last spring, btw).
But in the process we wanted to see if we could make flammable
methane-rings, so we sprayed some methane gas into the cannon & fired it
at a lit candle, but the rings didn't flame up. We knew they hit the
candle from the fact that it flickered, and we tried a variety of
proximities but nothing worked.

(((((((((((((((((( ( ( ( ( (O) ) ) ) ) )))))))))))))))))))
William J. Beaty SCIENCE HOBBYIST website
billb at amasci com
EE/programmer/sci-exhibits amateur science, hobby projects, sci fair
Seattle, WA 206-762-3818 unusual phenomena, tesla coils, weird sci

John Welch

Cabrillo College Physics Dept.