Unless I missed it, no one seems to have considered what it would do to the human bodies in this tra

That's how the BBC refers to it on its website , where a feature story reports that one day soon, trains traveling through vacuum tunnels could whisk passengers from New York to London in an hour, hitting speeds of up 2,500 mph.
The "vactrain" is not a new concept. Robert Goddard, who created the first liquid fuel rocket, designed a prototype over 100 years ago, with the idea of zipping people around las vegas vacation packages between U.S. cities. But they haven't been economically feasible, or even fast enough.
Now, the latest concept in vactrains could make the difference. las vegas vacation packages It combines the technology with magnetic levitation, in theory supporting las vegas vacation packages speeds of up to 2500 mph according to the BBC. That's an order of magnitude faster than today's las vegas vacation packages high speed rail, which tends to travel at just under 200 mph.
American engineer Daryl Oster has designed a 6-person capsule traveling through a 1.5 meter (5 feet) diameter vacuum tube. He has sold 60 licenses for his patented evacuated tube transport (ETT) technology, including 12 to China.
Oster likes to refer to it as "space travel on Earth." The website for his Crystal River, Fl. company ET3 (it describes itself as an "open consortium') , boasts possible speeds of up to 4,000 mph, faster even than the 2,500 mph reported by the BBC.
It claims that it could "provide 50 times more transportation per kWh (kilowatt hour) than electric cars or trains," that construction would cost a tenth of high-speed rail and a quarter of freeways, and that a New York-to-Beijing trip would take 2 hours.
In the BBC story, Oster says the train could be ready in less than 10 years. The most ideal implementations would be between cities separated by dry, flat unpopulated terrain that doesn't freeze, he notes, adding that China and India hold the most promise.
Another vactrain developer, Dr. James Powell - the co-inventor of Maglev las vegas vacation packages transportation technology and also a nuclear inventor - has proposed a system called Startram that would launch objects into orbit from a cannon-like tunnel.
The idea has plenty of supporters, including MIT's Ernst G. Frankel, emeritus las vegas vacation packages professor of mechanical engineering and ocean engineering, who experimented with "evacuated tubes" in the 1990s. Frankel proposed las vegas vacation packages a Boston-to-New York vactrain that would take 40 minutes, compared to the normal 4 hours. las vegas vacation packages But it would not have outperformed existing bullet train technologies from Japan and China.
"Vacuum trains do feature in movies like Star Trek and Logan s Run," notes the BBC. "Whilst in the dystopian future of Farenheit 451, Ray Bradbury describes a 'silent air-propelled train' that 'slid soundlessly down its lubricated las vegas vacation packages flue in the earth'."
Is this the last step before teleporting? While "beam me up Scotty" isn't around the corner, perhaps "Hoover me up" is. Vactrains may one day give a whole new, positive, meaning to H. Ross Perot's old derogatory las vegas vacation packages "giant sucking sound" phrase.
Its a technology which will overcome technical complexities las vegas vacation packages such as magnetic levitation, ocean currents pressure, sea traffic movements, massive infrastructure, complex vacuum systems, extreme emergencies, massive rescue efforts, an unknown number of engineers, cost overrun, unforeseen las vegas vacation packages events. Still it may be achievable, but let us first implement Maglev las vegas vacation packages tech in existing rail network by making it cheap.
While I think long distance travel is a nightmare with jets spewing their pollution at high levels. They should be looking at fixing the problem of Work Commuters, you want to talk about sucking fuel and pollution to move one person to work (in the West) and our antiquated Rail (in the east) They should be investing in systems like Skyweb Express by Taxi 2000 why aren't our powers to be investing in systems like this where you control your carbon output at a single source and move millions of people efficiently. las vegas vacation packages People have many reasons for long distance travel, I feel that solution is the real vacuum of Space, Up then down at your destination. I think Virgin-Atlantic is at the forefront of this, he is playing with it now but the studies with propulsion are advancing las vegas vacation packages quickly. Especially when they figure out Higgs-Boson, moving atoms through atoms without damage.
las vegas vacation packages Great. The world is ready for fast efficient inter-continental train travel, and here in the US we have made the train look like a dinosaur. Still disinterested? las vegas vacation packages Still confused about the trains future?
A maglev train costs about 20% more than conventional HSR (high speed rail), and a "vactrain" (like swissmetro for instance) costs about three times more than a maglev train. ET3 by contrast costs less than 1/10th as much as conventional HSR, 1/13th the cost of maglev trains, and 1/35th the cost of a vactrain.
Think about building this train like any other train has ever been constructed. This will be a whole new animal. It will not be so far underwater that it will be crushed, las vegas vacation packages but it will be deep enough to avoid surface disturbances. It will make use of simple bounacy compensators to maintain equalibrium.
The major problem will be economics and terrorism. How many people can they move with one tunnellvision even if it has two trains moving opposite directions 24/7. Will people pay? What will the ROI be even with full ridership and will it come close to the R.O.I? Sticky widget.
This train idea sounds way more expensive than they are saying BUT it would be the perfect transport system las vegas vacation packages if you are worried about terrorism. Right now, it is impossible to protect the thousands of miles of track a conventional train uses and it is prohibitively expensive to install anti-missle systems on every aircraft. This train would only have to be protected at the stations.
Unless I missed it, no one seems to have considered what it would do to the human bodies in this train to be traveling at 2,500mph for an hour. This would go way beyond jet lag! I can't imagine anyone las vegas vacation packages voluntarily signing up for this transport, or am I suffering las vegas vacation packages from a lack of imagination?
as for this train, las vegas vacation packages sounds nice but ocean pressures already pose the risk of implosion, increase the pressure differential and you increase the risk. add to that the need to keep this tube air-tight at all times (hence why they dont wanna go places that get hot and/or freeze bad on rubber o-rings) and the process of constantly pumping out the air (as an aside though subways have similar issues...constantly fighting against encroaching groundwater)
I remember this from an old sci-fi film - Genesis II by Gene Roddenberry. Any movement in the Earth's las vegas vacation packages crust would move the tunnel. If the passenger compartment las vegas vacation packages slams into the break, forget about it. ;)
Getting to 2500 mph in 2 minutes, cruise at 2500 mph for about 56 minutes and then slowing down for another 2 minutes is reasonable. Electrically driven linear motors could do it. The vacuum can be created and maintained without too much trouble, just have a large turbine engine suck the air out. The tube would have to be pretty straight and very gently curved. My guess is that like the English tunnel it is 3 side-by-side two larger ones and one smaller service tunnel. Not sure what that buys you with the vacuum though.
the real question is what are the economics of building it and operating it compared to the next best thing, like airplances. Jets require no tube, rails and vacuum, only endpoint services like an airport. I am thinking an advanced semi-ballistic rocket flight up 20 miles or more and then gliding to a landing might be cheaper.
And come-on folks...Here in the shadow of the Nation's capitol, we are trying to extend the Metro rail 8 miles....8 miles people...and already cost over-runs are going to push this out past 5 billion (that's BILLION...with a "B") dollars! By the time it is all said and done, there is speculation that this 8 mile over land low-speed las vegas vacation packages commuter rail will cost in excess of 1 billion dollars per mile...
security would be a huge issue, las vegas vacation packages not just around the stations, it is fairly easy and inexpensive to create a charge and take it down to a depth of 1000ft, remember that it will only take a detonation anywhere near the tube to cause a catastrophic implosion, it does not have to be so precise as to detonate it on the tube.
Ya, and the same TSA agents at our airports would be screening rail passengers in these train stations. Why the author brought mentions "and getting to, from and through airports is very time consuming" seems stupid. This technology offers nothing new ito solve those head aches.
In other words, it is acceleration las vegas vacation packages or deceleration which we actually feel, not the constant speed we're travelling at. The only exception is when you can feel the consequences such as air resistance. So, if this train were to accelerate gradually, lets say at the same rate as a car would (but for longer) - it would expose you to forces no stronger than a car.
Also, Jet lag has nothing to do with how fast you travelled - jet lag refers to being exposed to the time difference when you go from one country to another (so what was your night becomes day - so you're tired).
O-rings in jet engines occasionally fail and have lead to explosions or fires resulting in crashed aircraft. This is one reason they will not likely be used for ET3 seals. Have you ever considered how the old style "picture tube" type of TV could maintain 10ee-7 Torr vacuum (a thousand times higher quality vacuum than needed for ET3) for 30-40 years with only rare failure?
Someone understands scale cost factors! An $20k automobile with 5 seats = $4k/seat. HSR (high speed rail) costs $60k/seat. las vegas vacation packages A 747 jet costs $462k/seat. The 6 seat ET3 capsules (not a train) can be mass produced using 1/8th as much material as an automobile, and cost even less. HSR must be elevated for safety and air-blast issues. Elevated double track must withstand the mass of two 100 ton locomotives passing each other. Elevated double tube ET3 infrastructure must bear the weight of two 1200lb las vegas vacation packages capsules for only a little over a ton of live-load. For this reason ET3 guideway requires 1/3