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Space-Time According to Einstein The special theory of relativity, formulated by Albert Einstein in 1905, is based on the experimentally confirmed idea that the velocity of light is the same universal constant, c= 3x1010 cm./sec., for all observers who move uniformly in straight lines relative to each other. Consequently, Einstein's genius deduced that events which are simultaneous to one observer are not simultaneous to a second observer. Furthermore, moving clocks run slow. Moving measuring sticks contract in length along the direction of motion. Energy is equivalent to mass -- i.e. E = mc2. And the mass of a particle increases to infinity as the velocity approaches that of light. Einstein's results have been confirmed many times in physics laboratories. Like all scientific facts, these results pres...