“30-Second Cellphone Charge” Not Here Yet

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A California teenager has attracted widespread media attention after creating a “supercapacitor” that could recharge a cellphone battery in under 30 seconds. But much of the coverage appears to have downplayed the word “could.” 18-year-old Esha Khare (pictured above left) won an Intel Young Scientist Award of $50,000 at the company’s International Science and Engineering Fair. [...]

Quantum Internet Has Big Security Hole

Staff at a government laboratory have revealed they’ve been using a quantum internet since late 2010. But it’s an extremely simple model and might not scale well. The idea of a quantum internet scales from quantum computing, which used the magnetic orientation of atomic particles as a way to encode 0s and 1s. Simply put, [...]

Electric Fly Takes Flight

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The world’s smallest flying robot has made its maiden voyage. The tiny device uses electrically-powered movements that mirror the way a fly propels itself. The robot, dubbed RoboBee, is the work of staff at Harvard University. It’s barely bigger than a coin with a three-centimeter wingspan and weighs less than 0.1g. The carbon fiber robot [...]