If you've ever been caught out with a dead phone battery in the middle of nowhere, take heart. A team of researchers from the University of Washington (UW) have developed a phone that requires no batteries. Still in the prototype phase, the basic phone harvests the minimal power it needs from ambient radio signals, yet can communicate with a base station to make voice calls.
.. Continue Reading Battery-free phone harvests ambient energy to make callsCategory: Electronics
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from New Atlas http://ift.tt/2tmQGfs
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