“In essence what relativity says is that space and time are not absolute but relative both to the observer and the thing being observed, and the faster one moves the more pronounced these effects will become. We can never accelerate… — Bill Bryson Copy Share Image
“We thus arrive at the important result: Events that are simultaneous with reference to the embankment are not simultaneous with respect to the train,” said Einstein. The principle of relativity says that there is no way to decree that the… — Walter Isaacson Copy Share Image