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The answer is no for lots of reasons. First of all, to move the ends of the stick a compression wave has to move along the stick from the point at which you are holding it to either end. This will be at the speed of sound in the material of the stick. If you are holding the stick in the middle, you may perceive the movement of each end of the stick to be starting at the same time. However this is only from your perspective. From anyone moving with respect to you, the ends would, generally, not start moving at the same time, though there can be positions where the two events would seem to be simultaneous. The whole concept of simultaneity is not meaningful within special relativity unless observers are in a priveleged frame of reference.
Neil,Have you considered using the stick as a humane weedkiller?
Quote from: Geezer on 20/06/2010 20:16:30Neil,Have you considered using the stick as a humane weedkiller?Weeds ?..I see no weeds..I luff all plants !Hang on...ewe want me to humanely kill Little Weed from Bill & Ben ?Nooooooooo !!! [attachment=12303]