When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The vision sounds irresistible: step onto a train in New York, and emerge 54 minutes later in ...
On a flat, windswept green plain north of Hamburg in the state of Schleswig-Holstein, Germany, a Herrenknecht tunnel boring machine is now 200 meters deep into burrowing under the Elbe River estuary.
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