Talk:Transatlantic tunnel

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This should be merged with Vactrain.

No, but it should link to it. --Golbez 07:22, 24 August 2006 (UTC)
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[edit] Stability of a submerged tube?

A text I read regarding ordinary high-speed trains said that the high-speed railways need very high stability because there can't be "bumps" at a high speed. Therefore a suspension bridge is not usable at high speed. If one is neccesary it must be travelled at lower speed. What about travelling submerged tubes at above 1000 mph? Maybe one trains causes the tube to move, which might make it very unpleasant for the next train? --BIL (talk) 20:58, 20 May 2008 (UTC)

Indeed, such a tunnel or tube is so far beyond current fiscal and engineering capabilities that problems like that seem downright mundane. Presumably such a tube would have integrated mechanisms for active stability, and trains designed specifically to deal with rail movement, rolling of the tunnel due to its weight, change in buoyancy, etc. Or perhaps solving those are so difficult, a magnetically levitated (MagLev) might be justified. —EncMstr (talk) 22:30, 20 May 2008 (UTC)