Talk:Transatlantic tunnel

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For an April 2005 deletion debate over this page see Wikipedia:Votes for deletion/Transatlantic tunnel

This article was nominated for deletion on September 8, 2007. The result of the discussion was keep.

This should be merged with Vactrain.

No, but it should link to it. --Golbez 07:22, 24 August 2006 (UTC)[reply]

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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)[reply]

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)[reply]

Maglev does not solve the problem since the railway is still influenced by a force from the train (Newtons third law). Maglev needs centimeter accuracy for the "railway", and would get serious problems with a submerged tube. If air travel still exists, e.g. year 2200, why is a maglev across the Atlantic justified, having the cost in mind? Isn't air travel better? --BIL (talk) 20:45, 22 July 2008 (UTC)[reply]