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Old 07-21-2013, 10:35 PM
 
8,165 posts, read 9,378,212 times
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I'm curious how it would accelerate. It implies a vacuum-tube like function, and one video said 'rail gun' launch. Both imply sudden, massive acceleration forces. I wonder how they could implement this using survivable, or even comfortable, g-forces during acceleration.

I work in aviation so should this actually be implemented and become successful, I may be out of a job. Even so, go for it. Bring on quicker, more efficient travel. Innovation is good.
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Old 07-21-2013, 10:46 PM
 
Location: DC/NY
1,561 posts, read 2,142,732 times
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Quote:
Originally Posted by 11thHour View Post
I'm curious how it would accelerate. It implies a vacuum-tube like function, and one video said 'rail gun' launch. Both imply sudden, massive acceleration forces. I wonder how they could implement this using survivable, or even comfortable, g-forces during acceleration.

I work in aviation so should this actually be implemented and become successful, I may be out of a job. Even so, go for it. Bring on quicker, more efficient travel. Innovation is good.
I'm curious too. I think in one of the videos in the OP, he said you wouldn't feel the quick acceleration somehow, but I'm not sure how that would be accomplished.
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Old 07-21-2013, 10:50 PM
 
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I am still waiting on the moving sidewalks talked about in the mid 1950's.
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Old 07-22-2013, 02:16 PM
 
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Originally Posted by texdav View Post
I am still waiting on the moving sidewalks talked about in the mid 1950's.
Oh, the irony!


Moving sidewalk at Denver International Airport Concourse B - YouTube
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Old 07-22-2013, 02:18 PM
 
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Okay math whiz kids: How much g force does it require to get from LA to NY in 1/2 hour?

Does the seat you're in need to flip around during deceleration?
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Old 07-22-2013, 05:10 PM
 
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Thought about it some more. The animation shows a straight line route from NY to LA. And yes, to hit speeds in excess of 4000mph, you would need a very, very straight track/tube. Any slight change in direction at those speeds would cause tremendous g-forces. Well, good luck constructing a straight tube across the country. Especially crossing geographic features such as the mountains and valleys in the west, going around building or towns/cities, etc. And any change in the slope or azimuth of the tube would have to be extremely slight and over a very long distance, or the speed would have to be dialed back to the point you may as well take a plane again. I guess you could drill through mountain after mountain, but that would become prohibitively expensive.

I don't know, sounds like a 'pipe dream' the more I think about it.
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Old 07-24-2013, 10:00 PM
 
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This would be magnificent. I basically gave up all travel 10 years ago, figuring that there wasn't any place that I wanted to be badly enough to overcome the problems with getting there. I have a mild to moderate agoraphobia condition that makes getting out without a panic attack somewhat dicey. But if I could be somewhere in 30-45 minutes, I might actually go. Of course, I'm sufficiently old that this will never come to pass for me in this lifetime, but maybe in the next or sometime.
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Old 07-24-2013, 10:17 PM
 
Location: Bethesda
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Originally Posted by Spazkat9696 View Post
If it crashes you're SOL.
You're also sol in an airplane, high speed train, or even the fast lane on the interstate. Evacuated tubes would likely be safer than any of those, although I'll certainly wait to see.
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Old 07-24-2013, 10:19 PM
 
Location: Bethesda
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Originally Posted by NJBest View Post
The $100 price is an insult. It should be well over $1000.
What does this even mean? Not sure if serious...
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Old 07-25-2013, 02:26 PM
 
Location: Here
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I think it is possible, but I don't think it will be that cheap. More in the $500 to $1000 range for a NY to LA trip.
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