Interesting idea-- travel in a vacuum tube at 760 MPH. Seems like if/when they figure it out this would be a more affordable and easier way to get around the USA relative to airplanes.
http://www.extremetech.com/extreme/196232-elon-musks-speed-of-sound-hyperloop-is-actually-being-built
http://www.extremetech.com/extreme/196232-elon-musks-speed-of-sound-hyperloop-is-actually-being-built
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