Surfingall

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Tireless diving robot feeds on the ocean’s heat

Posted by surfingall on April 29, 2010

NASA has unveiled an ocean-going robot that really can go on forever. It is the first of its kind to be fuelled entirely by renewable energy.This month the agency revealed that SOLO-TREC, a wax-filled buoy powered only by the temperature differences in the water around it, has been tirelessly diving to depths of 500 metres off the Hawaiian coast three times a day since November 2009. The float gathers data on temperature and salinity to improve studies of ocean currents.

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