https://www.bbc.co.uk/iplayer/episode/b0bb33ht/horizon-2018-3-how-to-build-a-time-machine Time travel is not forbidden by the laws of nature, but to build a time machine, we would need to understand more about those laws and how to subvert them than we do now. And every day, science does learn more. In this film Horizon meets the scientists working on the cutting edge of discov...展开
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Tim Burchett André Carson James Clapper Eric Davis Luis Elizondo Brett Feddersen Tim Gallaudet Kirsten Gillibrand Anna Paulina Luna Chris Mellon Karl Nell Hal Puthoff Mike Rounds 马尔科·鲁比奥 Jim Semivan Jay Stratton