News tagged with polarization

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Polar bear diet changes as sea ice melts

A series of papers recently published by scientists at the American Museum of Natural History suggests that polar bears in the warming Arctic are turning to alternate food sources. As Arctic sea ice melts ...

dateJan 22, 2014 in Ecology
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Image: Polar vortex enters northern US

The polar vortex is a whirling and persistent large area of low pressure, found typically over both North and South poles. The northern polar vortex was pushing southward over western Wisconsin and eastern ...

dateJan 07, 2014 in Environment
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Knut the polar bear's medical legacy

Keeping wild animals is an important component of the mission of zoos to educate the public and preserve endangered species. When animals die, tracking the potential cause becomes an investigation of pathogens ...

dateJan 03, 2014 in Plants & Animals
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Image: Titan's sunlit edge

(Phys.org) —The sunlit edge of Titan's south polar vortex stands out distinctly against the darkness of the moon's unilluminated hazy atmosphere. The Cassini spacecraft images of the vortex led scientists ...

dateDec 03, 2013 in Space Exploration
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