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Evacuated tube transportation, space travel on Earth?

Evacuated tube transportation, space travel on Earth?

(9:25) Theoretical physicist Michio Kaku has classified the progress of civilisation into three stages - Type 0 to Type 3 (link). Currently we are firmly a Type 0 civilisation, and remain so while we are still burning fossil fuels as our main source of energy. In terms of transportation, a Type 1 civilisation will use air-resistance free vacuum tubes to propel passengers around the world at many thousands of miles an hour.

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WalterEgo WalterEgo (1692 days ago)
We should scrap HS2, put half the money in modernising Britain's current rail sytem and broadband, while investing the rest in ET3 research and technology. Time to shift our asses and move pronto into the future!
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We should scrap HS2, put half the money in modernising Britain's current rail sytem and broadband, while investing the rest in ET3 research and technology. Time to shift our asses and move pronto into the future!
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Guest: Kamikaze (1688 days ago)
Latest comment: The kind of "international backbone" he talks about can never happen as long as there's political instability. Can you imagine a more natural target for terrorists? It's a beautiful idea, but think of all the problems with Air travel and terrorism, and this would be far more difficult to implement any kind of moderately effective security measures. Travel cross-country in 45 minutes, but spend three days getting through security first...
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Latest comment: The kind of "international backbone" he talks about can never happen as long as there's political instability. Can you imagine a more natural target for terrorists? It's a beautiful idea, but think of all the problems with Air travel and terrorism, and this would be far more difficult to implement any kind of moderately effective security measures. Travel cross-country in 45 minutes, but spend three days getting through security first...
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TheBob TheBob (1692 days ago)
If ETT is comparable to the London Underground, I hope it's not like the Northern Line
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If ETT is comparable to the London Underground, I hope it's not like the Northern Line
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Guest: (1692 days ago)
fraction of the cost of an airline ticket? That's the point you lost me. Amortise the cost of building a global ET3 transport network over its lifespan (realistically 40-50 years) and I'm pretty sure that the cost is going to be more than that of a flight with Easyjet.
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fraction of the cost of an airline ticket? That's the point you lost me. Amortise the cost of building a global ET3 transport network over its lifespan (realistically 40-50 years) and I'm pretty sure that the cost is going to be more than that of a flight with Easyjet.
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WalterEgo WalterEgo (1691 days ago)
I wouldn't jump to that conclusion so quick. Compared to an airline, the system would transport many more people. The 'fuel' costs would be minute in comparison to flying an aeroplane, and the service is not affected by weather. As for the cost of the infrastructure, I'm no expert but it is economically viable to build pipelines that crisscross the world to transport oil.
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I wouldn't jump to that conclusion so quick. Compared to an airline, the system would transport many more people. The 'fuel' costs would be minute in comparison to flying an aeroplane, and the service is not affected by weather. As for the cost of the infrastructure, I'm no expert but it is economically viable to build pipelines that crisscross the world to transport oil.
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Guest: (1688 days ago)
supercooling a maglev vacuum pipe across those sort of distances would require enormous amounts of energy, not sure where the fuel savings come in there. Oil pipelines are a million miles from the sort of technology required here.
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supercooling a maglev vacuum pipe across those sort of distances would require enormous amounts of energy, not sure where the fuel savings come in there. Oil pipelines are a million miles from the sort of technology required here.
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Guest: mad (1688 days ago)
not to mention the problems arising if superconductivity is lost (too high a current/magnetic field or temperature)
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not to mention the problems arising if superconductivity is lost (too high a current/magnetic field or temperature)
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