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.
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.
Engineering
Aug 8, 2012
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I love the idea of electric cars. But I wasn't enamored with the Ford Focus Electric.
Energy & Green Tech
Aug 4, 2012
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Fuel efficiency was the most important car-purchase factor for 37 percent of those surveyed in the new Consumer Reports National Research Center car-owner survey.
Energy & Green Tech
May 28, 2012
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(Phys.org) -- Hydrogen gas offers one of the most promising sustainable energy alternatives to limited fossil fuels. But traditional methods of producing pure hydrogen face significant challenges in unlocking its full potential, ...
Materials Science
May 10, 2012
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The electric car might not be enjoying a good moment. General Motors Corp. stopped production for five weeks on the Chevy Volt, and sales of new all-electric cars such as the Volt and the Nissan Leaf are dismal. It's further ...
Energy & Green Tech
May 8, 2012
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(Phys.org) -- Even alternative energy technologies can sometimes be a little greener, according to a Kansas State University graduate student's research.
Materials Science
Apr 9, 2012
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Technology alone won't help the world turn away from fossil fuel-based energy sources, says University of Oregon sociologist Richard York. In a newly published paper, York argues for a shift in political and economic policies ...
Environment
Mar 19, 2012
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(PhysOrg.com) -- Scientists at the Brookhaven National Laboratory and collaborators have developed a new catalyst that reversibly converts hydrogen gas and carbon dioxide to a liquid under very mild conditions. The work -- ...
Materials Science
Mar 18, 2012
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Hydrogen fuel cells, like those found in some "green" vehicles, have a lot of promise as an alternative fuel source, but making them practical on a large scale requires them to be more efficient and cost effective.
Materials Science
Mar 15, 2012
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If the increased use of biomass to produce alternative fuels is to become a reality, more attention needs to be paid to logistics how, for example, biomass raw materials are shipped from farm to refinery, as well as ...
Energy & Green Tech
Feb 18, 2012
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