Wi-Fi Devices That Use Stray Radio Waves as Their Power Source - MIT Technology Review
 

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Wi-Fi Devices That Use Stray Radio Waves as Their Power Source
MIT Technology Review
A new breed of mobile wireless device lacks a battery or other energy storage, but it can still send data over Wi-Fi. These prototype gadgets, developed by researchers at the University of Washington, get all the power they need by making use of the Wi ...





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