Archive: 12/4/2013

Tracking marine food sources

Oceans cover nearly 75 percent of the earth's surface and have always been an important source of food and resources. Yet overfishing, pollution and mismanagement threaten marine ecosystems and thus one of ...

dateDec 04, 2013 in Ecology
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Composite battery boost

(Phys.org) —New composite materials based on selenium (Se) sulfides that act as the positive electrode in a rechargeable lithium-ion (Li-ion) battery could boost the range of electric vehicles by up to ...

dateDec 04, 2013 in Materials Science
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A leap forward in X-ray technology

X-rays transformed medicine a century ago by providing a noninvasive way to detect internal structures in the body. Still, they have limitations: X-rays cannot image the body's soft tissues, except with the ...

dateDec 04, 2013 in General Physics
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Commercial drones on the horizon

Internet retail giant Amazon.com hopes eventually to deliver packages by using flying robots, self-guided drones akin to those used by the military. The concept conjures images of holiday skies clouded with ...

dateDec 04, 2013 in Robotics
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