It was the "hot trick" to shatter the pot metal lock
mechanism on a "Kryptonite" bike or motorcycle U lock.

Dump a whole can of freon (Was .99 cents a can at this time
for R-12) on the inset lock mechanism then give a heathly
smack with a hammer and pick the guts out with a screwdriver.

As for real locks a nice sledgehammer for backup and a ball
peen for doing the smacking would destroy most locks. Had to
do that all the time when I worked picking up motorcycles for
a cycle shop and the customer had left the bike locked at
a apartment complex. (I ALWAYS had the license plate number
so I wasn't picking up the wrong bike!)

Bart D. Hull

Tempe, Arizona

Check http://www.inficad.com/~bdhull/engine.html
for my Subaru Engine Conversion
Check http://www.inficad.com/~bdhull/fuselage.html
for Tango II I'm building.

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Jeff Dantzler wrote:

Jeff Wisnia wrote:



You just reminded me that circa 1960 I watched with disbelief as the
then fiftyish Dr. D.H. Tomboulian, of the Department of Physics at
Cornell University, tossed a small paper cup full of LN down his throat
like it was Jack Daniel's, with no apparent pain or ill effects.





He did belch up a storm for the next few minutes though. He told us the
moisture in his alimentary canal had something to do with keeping the
tissues from being damaged during the time it took for the LN to boil off.





I never had the nerve to do it myself.





Anybody here seen, or maybe even tried, that stunt?



He probably doesn't swallow.

Look he

http://www.alcaudon.com/humor/humor_nitrogen.html

I wouldn't try that!

BTW, if any one in Seattle wants to try an experiment w/ LN, let
me know--I have access to it. We could see if a lock will actually
shatter. Personally, I doubt one could break say a bicycle U-lock
like this. Mythbusters any one?

One day I was fooling around in lab. I made a finger out of aluminum
foil and poured some LN into it. LOX condensed out of the air and
dribbled down the outside of the finger. I collected some in a tube
and dropped a match in... POOF!

Jeff Dantzler