Green Maned Lion
Engineer
Why the heck does this forum delete quotation marks?
Were they so called "smart" (directional) punctuation? If so they will be lost in the posting process. I believe they're not actually deleted and will show up again if you try to edit the post. They just won't be visible after posting. Seems to be some sort of bug or technical limitation of IP.Board forum software.Why the heck does this forum delete quotation marks?
If building tunnel were that easy, we'd have had subterranean HSR for decades now.Hyperloops operate primarily with underground tunnels. Go sufficiently far beneath the ground and easements become easy.
What is keeping us from simply building HSR underground or elevated like is done almost everywhere else in the world? That is hardly an argument in favor of Hyperloop per se.To paraphrase Stanley Kubricks Dr. Strangelove: it is not technically difficult- it requires only the will to do so.
Hyper loops are more easily constructed in the BosWas because the biggest issue with HSR is acquiring adequate amounts of continuous relatively straight rights of way above ground in such a dense area. Hyperloops operate primarily with underground tunnels. Go sufficiently far beneath the ground and easements become easy.
Heck, we'd have another crosstown Metro line, or at least express tracks on the Red Line.If building tunnel were that easy, we'd have had subterranean HSR for decades now.Hyperloops operate primarily with underground tunnels. Go sufficiently far beneath the ground and easements become easy.
http://www.spacex.com/hyperloopWe've never had a billionaire offer his own money to finance it before.
Compared to modern passenger aircraft hyperloops would likely be much more energy efficient and be able to interconnect with commercial scale renewable power sources. Even the very latest passenger aircraft designs are extremely inefficient compared to land and water based transportation and they still aren't designed to fulfill their operational objectives with the energy density and power-to-weight ratio of renewable fuels. Those are advantages worth investigating, probably not here in the land of fossil fuel fanatics, but perhaps in other countries where the idea of experimenting with something new and different isn't quite so confusing and infuriating to average citizens.Seems to me that the only advantage of the vactrain ("hyperloop") is that you'd get airline-like speeds on the ground.
I can only imagine what your grandfather had to say about passenger aircraft or your great grandfather had to say about the horseless carriage. The early days of airline travel were extremely risky and dangerous. Irrational concepts and cowboy logic ruled the day and people like you refused to participate and ridiculed those who did. But other people still kept investigating and correcting and redesigning until they eventually started to get some of it right. Over time more and more flaws in design and operation were resolved and eventually we managed to build one of the safest and most dependable methods of transit available. It's entirely possible that this whole hyperloop idea will simply peter out and die, but it's also possible it will find and address a problem that it excels at resolving. Personally I'm willing to withhold critical judgement until more of the technology has been built and tested.But we already have technology that can give us airplane-like speed. They're called "airplanes." And airplanes only require complex infrastructure at the airports, they don't need to build hundreds and thousands of kilometers of vacuum tubing engineered to high tolerances, separate tube systems for intermediate stops, with very restricted grades and curvature.
Above ground still requires difficult easements and mobilizes NIMBYS in a way a deep small bore tunnel doesnt.What is keeping us from simply building HSR underground or elevated like is done almost everywhere else in the world? That is hardly an argument in favor of Hyperloop per se.To paraphrase Stanley Kubricks Dr. Strangelove: it is not technically difficult- it requires only the will to do so.
Hyper loops are more easily constructed in the BosWas because the biggest issue with HSR is acquiring adequate amounts of continuous relatively straight rights of way above ground in such a dense area. Hyperloops operate primarily with underground tunnels. Go sufficiently far beneath the ground and easements become easy.
As long as Maryland or its taxpayers aren't paying a dime, they don't care who is, Musk can do whatever he wants.http://www.spacex.com/hyperloopWe've never had a billionaire offer his own money to finance it before.
"SpaceX has no affiliation with any Hyperloop companies, including, but not limited to, those frequently referenced by the media."
Seems to me like Mr. Musk isn't financing anything.
I get to use most of my personal funds to take the train once in a while. Poor Mr. Musk; he has to spend his on building one.All that means is that SpaceX isn’t funding anything. It makes no statement about what he is doing with his personal funds.
Ding ding ding. We have a winner here. Don't listen to the bloviation: follow the money.Seems to me like Mr. Musk isn't financing anything.
Yes, but presuming a certain specific bottleneck were resolved (the Hudson tunnels) Amtrak's capacity becomes a lot higher. Even on the current setup Amtrak were using all four of its slots at the Hudson and running 12-car trains for the Regionals and 400-seaters for the Acelas they could push capacity to about 2300 without that.That certainly seems like a scientifically researched article free of bias and bile. It also ignores that Amtraks capacity is what, maximum 1500 or so an hour on the corridor each way? So a 3300 capacity would allow for more than doubled ridership, and one minute headways would handle current ridership.
The vehicles need to be short to handle relatively tight curve radii, naturally. As for braking, the braking limit is not the machine, its the human body- reverse the polarity of the magnet and your car will stop cold. The occupants will be straberry jam, but the pod will be stopped.
Thirty seconds for stopping would be more than enough to stop the pod without injury to the passengers. I once stopped a friends Rhentech E7.2 (a W210 with a 7.2 liter V12) from 165 to zero in... I think it was a touch over 10 seconds. While it is an excellent demonstration of both the power of enormous twin caliper Brembo brakes and why one should never go that fast on the open road, it didnt even hurt. And that was a three point inertia reel, not a four point harness.
These objections, while sounding impressive, are just bloviation.
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