You are also free to believe that pushing (with the pushing finger being behind the point of contact with the string) against the end of a string to straighten it is exactly equivalent to pulling the string (with the pulling agent being in front of the point of contact with the string). However, your personal opinion doesn't become legitimized (become more scientifically "true") by adopting a mocking tone.
Jeff.[/quote]
I will go with Yoda's definition of a pull as posted. Jeff when are you going to release your Scientific Review of TGM on your website?
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