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Dec30-11, 11:01 PM
P: 86
Quote Quote by ghwellsjr View Post
Everything shrinks along the direction of motion according to the Frame of Reference in which it is moving, but not in its own rest frame. Relativity is such a well established principle that any theory (like quantum mechanics) that does not remain invariant after undergoing Lorentz transformation has to be modified until it does.
ok great. But you were explaining for a rod if instantaneous acceleration is applied to all the particles simultaneously it expands else shrinks(in rest frame)but when you consider something as electron the acceleration can only be instantaneous still it shrinks. how can this be explained?