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Time Travel: A revolutionary experiment shows that the laws of space and time can be manipulated

Although Einstein suggested that, in theory, traveling back in time and returning to the starting point in space-time is possible, later research on the matter argued against his believes. In 1949, Kurt Godel, a famous logician, introduced the "grandfather paradox" that seemed to invalidate Einstein's theory: if a person could travel back in time and he would prevent his grandmother to meet his grandfather, then the laws of classical physics...