Talking time travel on BBC Radio 4

October 20, 2015

Time travel in science and cinema ? with me, Adam Rutherford & Francine Stock Cells to Celluloid ?The most shocking thing about time travel is that, after 100 years of trying, physicists have utterly failed to rule it out. In fact, Einstein?s theory of gravity makes it very easy to see how to make a time machine ? at least in principle!

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