Mark Davidson wrote: > Force is static. Work is not static. Work=energy=force*distance. > My concern is conservation of energy. > How do you get more work/energy out of the back of the key than you put in > at the front? > (Hint: you don't.) > Where does the extra work come from? > > I understand the leverage issues/argument. But leverage isn't energy. > > -Mark Hmmmmm a very interesting point that hadnt crossed my mind at all. I have to think (and sleep) on this one. And with that, and a final thanks for the evening on all the good input from you folks on this, I bid you all a good nite. Cheers RicB -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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