> It's not a vacuum system ... I don't understand where people are getting this idea. http://www.teslamotors.com/sites/default/files/blog_attachments/hyperloop

> It's not a vacuum system ... I don't understand where people are getting this idea. http://www.teslamotors.com/sites/default/files/blog_attachments/hyperloop_alpha3.pdf http://www.teslamotors.com/sites/default/files/blog_attachme... Page 12: "The pressure of air in Hyperloop is about 1/6 the pressure of the atmosphere on Mars." Sounds like a near vacuum to me.