News tagged with alternative energies

Navy tests ocean drones off US coast

Just beneath the placid, sailboat-dotted surface of Narragansett Bay, torpedo-shaped vehicles spin and pivot to their own rhythm, carrying out missions programmed by their U.S. Navy masters.

dateAug 08, 2012 in Engineering
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How affordable is alternative energy?

Alternative energy sources that are cost-competitive with fossil fuels may be closer than most people realize. Recent renewable energy research has shown that solar, hydropower, wind and other alternative sources are closing ...

dateAug 01, 2012 in Energy & Green Tech
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Green tech cleans up with investors

Is there still big green to be made in green tech? A few years ago, investing in green technology companies in Silicon Valley was as de rigueur as vertical social-media sites. Those sites went away, but money continues to ...

dateJun 07, 2011 in Energy & Green Tech
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