Actually you just explained his idea, no? The difference between the dense parti... | Hacker News

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		redwood on July 18, 2013 \| parent \| context \| favorite \| on: Hyperloop: riding sound’s density peak to exploit ... Actually you just explained his idea, no? The difference between the dense particles just behind the craft with maximal drag and sparse particles just in front, means a pressure differential pushing the vehicle forward

jasallen on July 18, 2013 [–]

No, that would be a mechanic to provide thrust, which is not what he was describing.

redwood on July 18, 2013 | [–]

Sure, some thrust. The idea here is to find the sweet spot where enough thrust is provided to balance against the drag.. right?

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