Disorder can improve the performance of plastic solar cells

Scientists have spent decades trying to build flexible plastic solar cells efficient enough to compete with conventional cells made of silicon. To boost performance, research groups have tried creating new plastic materials ...

DALER project shows a walking flying robot (w/ Video)

(Phys.org) —At the Laboratory of Intelligent Systems we are developing a novel flying platform which has the ability to move on the ground by using its wings only. Using the wings as whegs to move on rough terrains instead ...

Twitter hands down new rules to beat abusive talk (Update)

Twitter is handing down new rules to control abusive language, the company said Saturday, a move which follows a barrage of nasty, harassing, and threatening messages directed at high-profile female users of the microblogging ...

As dams loom, Mekong fishermen fear for their future

The waters of the mighty Mekong have sustained generations of families but nowadays its fishermen often find their nets empty and fear hydropower mega-dams will destroy their livelihoods.

From recession's wake, education innovation blooms

On a warm spring evening, hundreds of investment bankers, venture capitalists and geeky tech entrepreneurs gathered near the pool of the Phoenician, a luxury resort outside Phoenix. The occasion? A high-profile gathering ...

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