Is it possible for a cellphone to recharge itself without any wires? We say, impossible but with Nokia, it will be.
Nokia has taken another baby step in that direction with the invention of a cell phone that recharges itself using a unique system: It harvests ambient radio waves from the air that were released from TV, radio and other mobile phone systems 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.
Nokia says it hopes to commercialize the technology in three to five years. Isn’t it amazing?
Source: http://tech.yahoo.com
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