The following is from Accelerating spaceships paradox and physical meaning of length contraction by Vesselin Petkov. Quite a well known paper I think. Speaking of Bell's Spaceship Paradox he says ----This paradox still appears to be regarded by some physicists as proof that (i) only physical bodies, but not space, undergo relativistic length contraction and (ii) a relativistically contracted body experiences a stress.----- I assume from the context that he is talking about standard SR formulation rather than Lorentz formulation. If my assumption is incorrect then my questions are irrelevant so please ignore them. The first part seems to be disputed. What are the arguments for space not contracting in standard SR as opposed to Lorentz Ether Theory? I have seen the question about space contraction asked before on the forum but no one seems to have given a yes or no answer to the question. As to the second, it seems so obvious to me (not always a good sign) that it it cannot be true that relativistically contracted bodies, as opposed to Lorentz contracted bodies, experience stress. What are the arguments for such stresses ocurring? Matheinste.