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					Originally Posted by Rangsk
					
				 
				You can't.  Einstein showed us through relativity that nature's laws are constant no matter how fast you are moving, as long as you are moving at a constant velocity.  Moving at a constant velocity is the SAME as being at "rest." 
			
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 I don't normally nit-pick but this is backwards.  
Special Relativity doesn't show us that nature's laws are constant.  That is a 
postulate of the theory.  In otherwords, it is an 
assumption that the theory of 
Special Relativity is based on.  Why do we make this assumption?  Because, experimentally, it seems to be true.  However, you never know, it could be wrong and that's why we still call it a 
theory...