Energy & Green Tech

Redesigning batteries for ultrafast-charging EVs

It's hard to ignore the difference: You can fill a car's tank with gas in mere minutes. Charging the battery of an electric vehicle (EV) can take 30 minutes or more.

Consumer & Gadgets

Radar wristband turns your arm into a smartwatch trackpad

Researchers at North Carolina State University have developed technology that turns a smartwatch user's forearm into a trackpad, allowing the user to scroll, zoom, click on icons and so on. The system relies on a radar system ...

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