"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." View the complete lesson at TED-Ed.
David Tong on Einstein's Theory of General Relativity A lecture exploring one of the 20th century’s ground breaking theories. On SoundCloud