Robot glider harvests ocean heat

A sea-going robotic glider that harvests heat energy from the ocean has been tested by US scientists.

The yellow, torpedo-shaped machine has been combing the depths of seas around the Caribbean since December 2007.

The team which developed the autonomous vehicle say it has covered “thousands of kilometres” during the tests.

The team believe the glider - which needs no batteries - could undertake oceanographic surveys for up to six months at a time.

BBC NEWS | Technology | Robot glider harvests ocean heat

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