DonPedro

5 ms·

1.
by DonPedro 13y ago
This, I thought. "Maybe guide rails leading up to it"
2.
by DonPedro 13y ago
Re. headroom in Model S: http://www.teslamotorsclub.com/showthread.php/10879-Any-tall...
3.
by DonPedro 13y ago
ROFLMAO
4.
by DonPedro 13y ago
Not by itself, but maybe in combination with another technology: http://www.popsci.com/technology/article/2010-11/nasa-engine... Whatever you were launching would have to move through normal air, not the mini
5.
by DonPedro 13y ago
Just the simple fact that the Aerotrain was on a track and not in a tube makes all the difference in the world. And I don't get this "look someone proposed something similar before" thing (everything from vacuum tubes to mag
6.
by DonPedro 13y ago
I'll go out on a limb here and wager that SpaceX engineers know the Mach value for various permutations of temperature and air density. But I might be wrong...
7.
by DonPedro 13y ago
ty
8.
by DonPedro 13y ago
I'd rather be stuck in my seat for 35 minutes than to travel to an airport, go through security, check-in, waiting and boarding, fly for 90 minutes and then apply all the logistics in the other end. Your point is valid, but I would co
9.
by DonPedro 13y ago
BYO3?
10.
by DonPedro 13y ago
Obvious engineering issues for further investigation. I would just point out that fatal failure mechanisms can be pointed out in any transportation system. The acceptance criterion is a sufficiently low fatality rate.
11.
by DonPedro 13y ago
The basic issue the hyperloop overcomes is the energy waste in train transportation, especially at high speeds. This is primarily about aerodynamics, and secondarily about carrying with you the propulsion system. Third, it overcomes the &
12.
by DonPedro 13y ago
Link?
13.
by DonPedro 13y ago
They are taking it out at the ends. Assume a fixed point in the middle, and you have some 1000' of movement at either end. That should be feasible, but the tube needs to be designed for very significant longitudinal movement through
14.
by DonPedro 13y ago
No you could not. The steel tube will expand and contract as temperatures change. Along most of the route, that longitudinal movement of the tube will be in the 10s and 100s of feet, which means that the "valley" could be anywhe