Machine Breaks Out Last Bit in Longest Tunnel

Swiss engineers have smashed through the last stretch of rock to create the longest tunnel in the world, the 35.4-mile (57-kilometre) Gotthard Base Tunnel. (Oct 15)

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Machine Breaks Out Last Bit in Longest Tunnel

Posted by on October 15, 2010. Filed under News, Video. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry