On 12/14/2010 3:46 PM, Jim Stewart wrote:

Early on, I tried to convince a cow-orker that a 30"
pipe pressurized to 400 psi would be quite capable
of heaving itself out of the ground and 100 feet away
just by the pressure of the gas released through a
failed weld. He wouldn't believe me....

Send him this link (fast forward to about 1:10 for the good stuff) to
see a graphic example of the power potential of compressed air or gas.

http://www.youtube.com/watch?v=xnyh7...eature=related


Jon