Archive: 09/04/2013

Reliable packaging for chemical-free food

It is not obvious when examining a wrapped lettuce or a microwavable bowl of Chinese soup. But plastic food packaging is made of multiple layers designed to act as a barrier for oxygen or bacteria. "Each of these layers is ...

dateApr 09, 2013 in Other
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Polluting plastic particles invade the Great Lakes

Floating plastic debris—which helps populate the infamous "Great Pacific Garbage Patch" in the Pacific Ocean—has become a problem in the Great Lakes, the largest body of fresh water in the world. Scientists reported on ...

dateApr 09, 2013 in Environment
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Retired star found with planets and debris disc

(Phys.org) —ESA's Herschel space observatory has provided the first images of a dust belt – produced by colliding comets or asteroids – orbiting a subgiant star known to host a planetary system. The team of scientists ...

dateApr 09, 2013 in Astronomy
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A primary voltage standard for the whole world

(Phys.org) —PML researchers are on the verge of reaching a long-sought major goal: Providing the world with a programmable quantum voltage standard that has an uncertainty of less than 1 part per billion, never needs calibration, ...

dateApr 09, 2013 in General Physics
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