from Hacker News

Why the Hyperloop is impossible in practice [video]

by wdrw on 7/25/16, 2:20 AM with 4 comments

• by Iv on 7/25/16, 4:01 AM

  Ok, did not watch the video completely but it seems mostly about the low pressure requirements. It seems that the author does not realize that hyperloop is not a vacuum tube but a low-pressure environment. Actually the pod depends on surrounding air to create the air cushion it drives on.

  Also, the way to mitigate earthquakes and thermal expansion are (albeit vaguely) mentioned in the alpha document: the tube rests on pylons and the overall structure deforms slightly.

  http://www.spacex.com/sites/spacex/files/hyperloop_alpha-201...