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Originally Posted by Adam Y.
Your right. I do believe it crossed the Bearing Straight. It's called the archimedes screw. Rather quite simple concept since it acts just like a giant propeller.
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Ahh, got it. I was thinking of the IceChallenger Expedition's Snowbird 6, which made the first overland trip from the USA to Russia since prehistoric times. You can visit the official website at
http://www.icechallenger.com/