Quote:
Originally posted by bobw
I saw a special on one of the Learing Channels (or Discovery Channel) a few years ago... great show. Apparantly, it is very very difficult.
The show was basically 2 teams, first one to get it to work, got to launch rocks at a mock castle wall built to resemble a true wall...
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I saw that. Very exciting show actually.
I've also seen one that launches automobiles.