3 ms·
Note that Japan's Chuo Shinkansen is to be approximately 60% underground (much of that "deep underground"). ... and it's real-world, actually-being-built, long
by snogglethorpe 13y ago
Note that Japan's Chuo Shinkansen is to be approximately 60% underground (much of that "deep underground").
... and it's real-world, actually-being-built, long-distance (about 300km for the first phase), safety-critical (transports passengers at high-speed), market-financed project in a highly seismically active area.
http://en.wikipedia.org/wiki/Ch%C5%AB%C5%8D_Shinkansen http://en.wikipedia.org/wiki/Ch%C5%AB%C5%8D_Shinkansen
- Groxx 13y agoThat's only about half the speed that the hyperloop is being advertised at, though. That route is claiming ~500km/h, which would put you from SF to LA in about an hour, if this site is accurate: http://www.mapcrow.info/Distance_between_Los_Angeles_US_and_San_Francisco_US.html http://www.mapcrow.info/Distance_between_Los_Angeles_US_and_... Which is not to imply that's not an incredible feat - the Shinkansens are awesome, and work. Just that things get harder practically exponentially as you increase speed, so doubling it is a very, very big jump.
- snogglethorpe 13y agoSure, I was just responding to the subthread about the feability of long-distance precise/safety-critical tunnel-construction in seismically active areas. Nobody knows what hyperloop is anyway (and it's not even clear that Musk actually has a real plan), so it's hard to say much about the details! :]