There is energy in the air all around us, traveling in the form of sound, Wi-Fi and other signals. Duke University researchers announced they successfully converted microwaves into electricity, which could be used to power electronic devices. Their system is about as efficient as a solar cell, and they hope it could someday be built into mobile phones.
Story posted at: bbc.co.uk
{"source":"https:\/\/gigaom.com\/2013\/11\/11\/microwave-signals-turned-into-electrical-power\/wijax\/49e8740702c6da9341d50357217fb629","varname":"wijax_c077075045f79f3938affaf06e97b2dd","title_element":"header","title_class":"widget-title","title_before":"%3Cheader%20class%3D%22widget-title%22%3E","title_after":"%3C%2Fheader%3E"}