Archive: 08/13/2014

Dolphins and whales experience pleasure

Sam Ridgway has spent most of his life learning about dolphins and whales. Over his five-decade career he has asked these cetaceans various questions, including how deep they can dive and how depth affects ...

dateAug 13, 2014 in Plants & Animals
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Report: NSA eyed preset strikes in cyberattacks

The National Security Agency secretly planned a cyberwarfare program that could automatically fire back at cyberattacks from foreign countries without any human involvement, creating the risk of accidentally ...

dateAug 13, 2014 in Security
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Towards more efficient solar cells

A layer of silicon nanocrystals and erbium ions may help solar cells to extract more energy from the ultraviolet (UV, high-energy) part of the solar spectrum. Experimental physicists from the FOM Foundation, ...

dateAug 13, 2014 in Nanophysics
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Monitoring meteor showers from space

Those who enjoy the spectacle of the Perseids, Geminids or other annual meteor showers likely aren't thinking about where these shooting stars originated or whether they might pose a danger. Scientists, however, ...

dateAug 13, 2014 in Space Exploration
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