5 ms·

I still believe the top contender is Jacques Mattheij's proposal of a pressurized tunnel: http://jacquesmattheij.com/elon-musk-and-the-hyperloop http://jacquesm

by beambot 13y ago

I still believe the top contender is Jacques Mattheij's proposal of a pressurized tunnel: http://jacquesmattheij.com/elon-musk-and-the-hyperloop http://jacquesmattheij.com/elon-musk-and-the-hyperloop

bencollier49 13y ago
Didn't EM say it wasn't pressurised? Could be misdirection, mind.
- wcoenen 13y ago
  No, he said that it is "not an evacuated tunnel".
- dedward 13y ago
  The pressure peaks in a sound wave don't really equate to a pressurized tunnel.. just a localized pressure gradient moving at the speed of sound.
rorrr2 13y ago
That doesn't address all the nightmarish issues of traveling at 600-700 MPH through pressurized air. Riding the pressure peak at exactly the speed of sound makes a lot more sense.
- beambot 13y ago
  Not travelling through pressurized air.... travelling with the pressurized air. The idea behind the article I linked is that the entire system moves as a cohesive mass -- air, vehicles, and all.
bjornsing 13y ago
Seriously? Compared to that design evacuating the tunnel would make a lot of sense, as would going a lot slower than the speed of sound. Now when Elon says it's not an evacuated tunnel, and also (indirectly) that you'll be traveling more or less exactly at the speed of sound, I'm leaning quite heavily towards the OP.