On Sun, 02 Apr 2006 15:18:05 -0500, Bert Hickman wrote:
Winfield Hill wrote:
....
How much of the energy is taken up by the coin crushing and
coil stretching?

It's really hard to say... but I'd be surprised if even 50% of the
energy actually ends up going into shrinking the coin. Considerable
energy goes into explosively ejecting coil fragments. A fellow shrinker
in Texas has calculated fragment velocities of up to 5000 fps.

All I can say is, you guys are nuts! ;-)

Cheers!
Rich