Viewing profile — milo256

You have a strange idea of what a hyperloop is. nobody says it has to be sealed around the edges like a syringe plunger.

Why would you use a hydrogen piston engine as opposed to fuel cells?

Huh? In what world is a hyperloop going maybe 700mph comparable to a spacecraft reentering from orbit at 17,000mph? Also, maybe there's something I'm missing but spacecraft can and…