Hyperloop

Sporky

Axe_meister said:

Trouble with those kinds of speeds is the sound barrier. As the pressure goes down so does the speed of sound, 
So lots of shock waves to deal witj

That's a fair point. At half an atmosphere (an educated guess on my part) it's going to be around 700mph.

What I'm not sure of is whether the sonic boom gets less severe as pressure drops.

Axe_meister

The sonic boom will be just as severe.
so you will have to design the train/pod such that the shock waves travel down the pipe rather than into it. Otherwise you will get a higher chance of metal fatigue.

Axe_meister

I had a book in 70s called trains of the future and a very similar concept was explored so now a new idea at all.

Snap

Abu Dhabi to Dubai isn't a 4 hour flight. Its a pretty short drive.

roundthebend

Sporky said:

so Ranty McRantyChops really does need to do some reading before posting his everything-sucks videos.

That's game, set and match!

Drew_TNBD

http://media.salon.com/2015/03/shutterstock_159587795.jpg