12/30/2008 05:12 am ET Updated May 25, 2011

Scientists: Revolutionary Device Can Harness Ocean Currents To Power The World

A revolutionary device that can harness energy from slow-moving rivers and ocean currents could provide enough power for the entire world, scientists claim.

The technology can generate electricity in water flowing at a rate of less than one knot - about one mile an hour - meaning it could operate on most waterways and sea beds around the globe.

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