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So Elon Musk's Hyperloop Is Actually Getting Kinda Serious

• ColinWright 11y ago
  So many submissions, so little comment. Does no one have anything to say? https://news.ycombinator.com/item?id=10105003 https://news.ycombinator.com/item?id=10105003 https://news.ycombinator.com/item?id=10095595 https://news.ycombinator.com/item?id=10095595 https://news.ycombinator.com/item?id=10093968 https://news.ycombinator.com/item?id=10093968
• leni536 11y ago
  >near supersonic speeds Just to nitpick I think they refer to supersonic speeds in standard pressure. The speed of sound in very low pressure ("vacuum") is much lower and they probably far above that.