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A strange new theory helps explain why our universe has only one dimension of time

(NASA/Britt Griswold/Maslow Media Group) Over one hundred years ago, a pioneering thinker changed how we understand space and time. He told us that they're both intertwined in a fabric that permeates ...
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Why the speed of light breaks Newton's rules

0:00 - Why time is a dimension 1:43 - Speed of light was a problem 3:54 - How Einstein resolved problem 4:54 - Minkowski ...