On Fri, 24 Dec 2004 03:52:21 GMT, "Mark Jerde"
wrote:

P.S. Those who finished engineering degrees are invited to correct my
mis/mal understandings. ;-)

I think that the difference involved occurs when both are under load.
A bull and a mouse can pull a small toy behind them a the same speed
if the bull takes it slow and easy. If the toy sticks against
something, the mouse will stall. The bull will destroy the toy, the
something, and anything else that gets in the way. It's smart to not
overdo it.