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2015-01-08
into the universe with stephen hawking time travel
source: Stephen Hawking 2014年6月28日
The promise of time travel has long been one of the world's favorite scientific "what-ifs?" Hawking explores all the possibilities, warping the very fabric of time and space as he goes. From killing your grandfather to riding a black hole, we learn the pitfalls and the prospects for a technology that could quite literally, change everything.
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