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June 17, 2009 // 7:56 pm - Nokia has invented a cell phone that recharges itself using a unique system: It harvests ambient radio waves from the air, and turns that energy into usable power.

Enough, at least, to keep a cell phone from running out of juice.

To quote: Nokia's system isn't finicky about where it gets its wireless waves. TV, radio, other mobile phone systems - all of this stuff just bounces around the air and most of it is wasted, absorbed into the environment or scattered into the ether.

Nokia picks up all the bits and pieces of these waves and uses the collected electromagnetic energy to create electrical current, then uses that to recharge the phone's battery.

Currently Nokia is able to harvest all of 5 milliwatts from the air; the goal is to increase that to 20 milliwatts in the short term and 50 milliwatts down the line. That wouldn't be enough to keep the phone alive during an active call, but would be enough to slowly recharge the cell phone battery while it's in standby mode, theoretically offering infinite power.

Nokia says it hopes to commercialize the technology in three to five years.

Prototype Nokia Phone Recharges Itself Without Wires

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#13 - SamuelRSmith - July 6, 2009 // 5:54 pm
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I remember seeing this video where Nokia were talking about having microscopic plants that lived on the surface of the device which could then produce energy via photosynthesis.

I couldn't see that being very practical, though; I mean, how on earth would you water the damned plants?

#12 - bl0wfish - June 26, 2009 // 4:01 am
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This is excellent. i am always having trouble keeping my phone charged.

just think, i could be out in middle of no-where, phone goes flat. if i had this phone, i could turn it on stand-by, wait 30 mins or so. then have enough power to call someone to come resue me.

#11 - lokdu - June 20, 2009 // 8:38 pm
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Could be a great idea if it works. maybe they could consider to do this for bigger things

#10 - netpredakonn - June 20, 2009 // 12:39 pm
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This is just amazing. Not only because of this cellphone. This could mean the end of cables to all electronics. You could buy one machine to generate these waves an power your entire home without if other kinds of electronics were to support this. Kudos to Nokia.

#9 - denunes - June 18, 2009 // 9:06 pm
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just see this

its the signals from radio station+tv stations+wireless networks+...
all this waves are coliding the antena.
free energy

#8 - killburn - June 18, 2009 // 7:55 pm
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too good to be true... so this will cause cancer


#7 - kake2k - June 18, 2009 // 2:25 pm
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even 1000 years in the future, there will be less tech than 2000 years in the future!

this is really cool though!! wireless power haha!

#6 - walidahmadi - June 18, 2009 // 2:12 pm
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well this thing would be awesome

#5 - GrandpaHomer - June 18, 2009 // 1:15 pm
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He he - can't find the charger - put mobile into Microwave for a few seconds ...

#4 - effbee - June 18, 2009 // 10:29 am
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Those waves aren't really free, when you start harvesting them your degrading the range and strength of the signal to whoever it was intended for. If lots of phones start using this it is going to really mess things up.