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Message text written by "John J. Stimson-III"
"That doesn't mean that it won't roll due
to vertical forces like sudden changes in the slope of the pavement or
hopping up and down in the driver's seat...
-- 
john@idsfa.net                                              John Stimson
http://www.idsfa.net/~john/                              HMC Physics '94"
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As I recall, hopping up and down in the driver's seat is a stunt designed
to allow a small displacement engine, i.e a go-kart, to rev up and
accelerate the vehicle. It worked for me. <G>
 
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