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Engineers made a battery-free radio the size of an ant

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The tiny chips, which are powered by harvesting radio signals and don’t require external power, are small enough to fit on gadgets in your home, but still powerful enough to send and receive transmissions. The hope, according to the creators, is for device-makers to start using the chips in gadgets for the Internet of Things. Add one of the chips to a lightbulb, and make your stuff a little a smarter — able to communicate with you and all the electronics around you.
via The Verge

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