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Re:Hyperloop by DonPedro on Wednesday August 14, 2013 @04:13PM (#6213935)
Not by itself, but maybe in combination with another technology: http://www.popsci.com/technology/article/2010-11/nasa-engine...

Whatever you were launching would have to move through normal air, not the minimal pressure you have in the Hyperloop tube. It is hard to pass an airlock at supersonic velocities...

Re:Hyperloop by tocomment on Thursday August 15, 2013 @09:05AM (#6217507)
Could you gradually re-introduce air pressure at the end of the tube before the payload exits towards orbit?