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August 4, 2011 02:29 am GMT
Gleaning electricity from radio signals isn't super-efficient (or a new concept), but it's possible technically. Two companies from Japan have recently come up with new devices that can do just that: one is harvesting energy from cell phone signals, the other uses a rectifying antenna (Rectenna) to produce energy.
Original Link: http://feedproxy.google.com/~r/Techcrunch/~3/rZJlVm_BtDc/
Harvesting Energy From Radio Signals: Two New Devices From Japan (Video)
Gleaning electricity from radio signals isn't super-efficient (or a new concept), but it's possible technically. Two companies from Japan have recently come up with new devices that can do just that: one is harvesting energy from cell phone signals, the other uses a rectifying antenna (Rectenna) to produce energy.Original Link: http://feedproxy.google.com/~r/Techcrunch/~3/rZJlVm_BtDc/
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