DiscussWhat does it take to build a 57.5km tunnel?

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Offline thedoc

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On June the 1st, Switzerland announced the opening of the world’s longest tunnel. Called the Gotthard tunnel, it runs under the Alps to link Northern and Southern Europe; and at 57.5km, it’s fair to say,  you certainly wouldn’t be able to see the light at the end of it! Our resident technology expert Peter Cowley talked Connie Orbach through the project.

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« Last Edit: 08/06/2016 10:13:13 by _system »