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...
这部纪录片不仅有知识性，还有观赏性，BBC地平线：如何制造时间机器，值得一看再看！
BBC地平线：如何制造时间机器，让我对时间的概念有了更深的思考，非常推荐给所有人看。
我本来对时间旅行没兴趣，但是BBC地平线：如何制造时间机器，竟然让我着迷了，太神奇了！