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Boojatta
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Tue Sep-20-11 08:42 AM Original message |
Are there any high speed commuter trains that run in vacuum tunnels? |
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Fumesucker
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Tue Sep-20-11 08:46 AM Response to Original message |
1. The restaurant in the train station would suck.. |
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formercia
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Tue Sep-20-11 09:17 AM Response to Reply #1 |
7. +10 |
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Yo_Mama
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Tue Sep-20-11 10:00 AM Response to Reply #1 |
16. Thank you |
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Turbineguy
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Tue Sep-20-11 08:46 AM Response to Original message |
2. Interesting idea. |
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FBaggins
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Tue Sep-20-11 08:58 AM Response to Original message |
3. Nope... but it's been the subject of speculation for many decades. |
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elleng
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Tue Sep-20-11 09:03 AM Response to Reply #3 |
4. Sounds like a nightmare to me, and I ain't no chicken! |
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Boojatta
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Tue Sep-20-11 09:09 AM Response to Reply #3 |
5. How much is spent every year on illegal drugs? |
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FBaggins
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Tue Sep-20-11 09:24 AM Response to Reply #5 |
9. Lol... not nearly enough. |
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AtheistCrusader
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Tue Sep-20-11 10:13 AM Response to Reply #9 |
17. And as expensive as the Chunnel was, I bet it isn't water-tight. |
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FBaggins
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Tue Sep-20-11 11:39 AM Response to Reply #17 |
23. I'd imagine so |
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txlibdem
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Tue Sep-20-11 06:15 PM Response to Reply #9 |
32. The Channel Tunnel cost less than 1/6th of what the US Interstate Highways did. |
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Yo_Mama
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Tue Sep-20-11 10:00 AM Response to Reply #3 |
15. Also extremely expensive construction |
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liberal N proud
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Tue Sep-20-11 09:11 AM Response to Original message |
6. Like Mail tubes |
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formercia
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Tue Sep-20-11 09:20 AM Response to Reply #6 |
8. Think of it like thrust, but in the negative sense. |
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FBaggins
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Tue Sep-20-11 09:27 AM Response to Reply #8 |
11. The vacuum wouldn't serve to provide motion to the train. |
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formercia
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Tue Sep-20-11 09:28 AM Response to Reply #11 |
12. ...but waiting on the platform would suck. |
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FBaggins
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Tue Sep-20-11 09:35 AM Response to Reply #12 |
14. Lol... well yes. |
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Tesha
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Tue Sep-20-11 11:15 AM Response to Reply #6 |
19. The earliest NYC subway was built like that, but that's not what we're discussing here. |
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formercia
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Tue Sep-20-11 02:11 PM Response to Reply #19 |
24. Inner Space. |
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tridim
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Tue Sep-20-11 09:27 AM Response to Original message |
10. A good idea if it were possible. |
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Tesha
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Tue Sep-20-11 11:18 AM Response to Reply #10 |
20. You don't need a very good vacuum; the friction would drop roughly in proportion... |
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PoliticAverse
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Tue Sep-20-11 09:33 AM Response to Original message |
13. Gravity Vacuum Transit... |
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Tesha
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Tue Sep-20-11 11:19 AM Response to Reply #13 |
21. "Connecting to all points in (IIRC) 45 minutes!" (NT) |
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muriel_volestrangler
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Tue Sep-20-11 10:31 AM Response to Original message |
18. I doubt commuter trains would ever use a vacuum |
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Tesha
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Tue Sep-20-11 11:21 AM Response to Reply #18 |
22. Equip the car doors with docking collars; no airlock required. (NT) |
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muriel_volestrangler
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Tue Sep-20-11 05:43 PM Response to Reply #22 |
30. Yeah, I guess that would solve that |
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formercia
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Tue Sep-20-11 02:14 PM Response to Reply #18 |
25. Just imagine how much energy it would save |
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muriel_volestrangler
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Tue Sep-20-11 05:37 PM Response to Reply #25 |
29. Perhaps; but that's high speed, not commuter rail (nt) |
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formercia
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Tue Sep-20-11 02:20 PM Response to Reply #18 |
26. Perhaps something like an Airliner at cruising Altitude. |
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txlibdem
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Tue Sep-20-11 04:25 PM Response to Reply #18 |
28. If economics are the ruling factor then you are right |
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hunter
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Tue Sep-20-11 03:55 PM Response to Original message |
27. Just make a universal speed limit of 50 kph. |
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ironrooster
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Tue Sep-20-11 05:47 PM Response to Original message |
31. Brunel tried it - in the 1840's (partial vac) |
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