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by infogulch
4146 days ago
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What if you have an enclosed track in a partial vacuum that runs up along a mountain and exits where the air is thinner? Everest is 8.8km tall, and air at that height has 1/3 the pressure as at sea level [1]. If you can build a 1km tower on top to extend the track, you can get down to 1/4 the pressure. [1]: http://www.engineeringtoolbox.com/air-altitude-pressure-d_46... |
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