National Geographic Mighty Movers By Sea
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The Dutch port of Rotterdam is the largest in the world. More complex than its rival, Singapore, Rotterdam is both a port and a massive distribution center, with ten times the number of cargo terminals. Here, speed equals money?? and danger. At the wharf, a 200-foot high crane, with a reach longer than a city block, slings cargo ashore at the stunning speed of 300 feet per minute?