Can a 700 M.P.H. Train in a Tube Be for Real?">Can a 700 M.P.H. Train in a Tube Be for Real?
A company called Hyperloop proposes to build the world’s fastest train in California. But for now, there are more questions than answers.
A company called Hyperloop proposes to build the world’s fastest train in California. But for now, there are more questions than answers.
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