10 Jul '12, 9pm

Could a 2,500mph VacTrain Replace Airlines?

There's been precious little world-changing progress in the mass transportation arena lately. Like, since the commercial airplane. Over the last couple of decades, technology has overhauled the way we communicate, the way we wage war, the way we eat. But not so much the way we move—barring some interesting tinkering around the edges, it's still planes, trains, and automobiles, and bikes. So, we're overdue for a big, disruptive leap in transportation technology. I'm not saying the 2,500 mile per hour VacTrain is it, but I'm not saying it's not, either. Here's how it works, via Smart Planet : one day soon, trains traveling through vacuum tunnels could whisk passengers from New York to London in an hour, hitting speeds of up 2,500 mph … The key is in the vacuum. Suck the air out of a transatlantic tunnel, and you eliminate resistance to the vehicle. In the oceanic version, en...

Full article: http://www.treehugger.com/public-transportation/could-250...

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