News tagged with polarization

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X-rays reveal fuel cells in action

(Phys.org) —Wouldn't it be great to have a magical "energy box" that could convert a wide array of fuels to electricity with high efficiency and lower emissions? Solid oxide fuel cells (SOFCs) show significant ...

dateJun 03, 2013 in Condensed Matter
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Cracking the ice code

(Phys.org) —What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?

dateMay 20, 2013 in Earth Sciences
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Contaminants also a threat to polar bears

The polar bear (Ursus maritimus), one of the largest carnivorous mammals on Earth, is vulnerable to a series of dangers. An international team has established a guide to evaluate the condition of its health, ...

dateApr 07, 2015 in Ecology
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Scientists say polar bears won't thrive on land food

A group of researchers say polar bears forced off melting sea ice will not find enough food to replace their current diet of fat-laden marine mammals such as seals, a conclusion that contradicts studies indicating ...

dateApr 01, 2015 in Ecology
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