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@ 2017/08/11Runs off radio signals
US boffins have emerged from their smoke filled labs with a prototype of a battery-free mobile phone.
The phone is the work of a group of researchers at the University of Washington in Seattle and works by harvesting tiny amounts of power from radio signals, known as radio frequency or 'RF' waves.
US boffins have emerged from their smoke filled labs with a prototype of a battery-free mobile phone.
The phone is the work of a group of researchers at the University of Washington in Seattle and works by harvesting tiny amounts of power from radio signals, known as radio frequency or 'RF' waves.
