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I believe there was a thread about 15 years ago in which we covered things like "balls to the wall" , referring to the wide open position of governors on a steam engine and "freeze the balls off a brass monkey ", which covered the phenomenon of different rates of expansion and contraction between Iron cannon balls and the brass matrix upon which they were stored(the monkey).
Best
Les
__________________
Best
Les
My train of thought has been replaced by a bumper car.
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