Here is a little clip about how time travel can occur. The clip was taken from: The World’s First Time Machine (Discovery Channel). Dr Ronald Mallett
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Time travel is a staple of science fiction stories, but is it actually possible? It turns out nature does allow a way of bending time, an exciting possibility suggested by Albert Einstein when he discovered special relativity over one hundred years ago. Colin Stuart imagines where (or, when) this fascinating phenomenon, time dilation, may one day take us.
Lesson by Colin Stuart, animation by TED-Ed.