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Published byArnold Lewis Modified over 9 years ago
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Curt Liljeberg, Chad Kreye, Lisa Harris and Cortnie Goodrich
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A cell phone that never needs recharging might sound too good to be true, but Nokia says it's developing technology that could draw enough power from ambient radio waves to keep a cell-phone handset topped up.
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Ambient electromagnetic radiation–emitted from Wi-Fi transmitters, cell-phone antennas, TV masts, and other sources–could be converted into enough electrical current to keep a battery topped up.
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Advantages to new technology No need for power cord to charge phone Elimination of multiple cords to charge multiple phones Ease of charging, no need to be at electrical outlet No need for AC/DC adapters
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http://images.search.yahoo.com/images/view?back=http%3A%2F%2Fimages.s earch.yahoo.com%2Fsearch%2Fimages%3F_adv_prop%3Dimage%26b%3D145%26 ni%3D18%26va%3Dno%2Bchargers%26pstart%3D1%26fr%3Dmcsaoffblock&w=290 &h=284&imgurl=www.freshenmeup.com%2Fwp- content%2Fuploads%2F2007%2F09%2Fchargers.jpg&rurl=http%3A%2F%2Fwww.f reshenmeup.com%2F2007%2F09&size=10k&name=chargers+jpg&p=no+charger s&oid=219342eac240a50e&fr2=&no=149&tt=11917&b=145&ni=18&sigr=112vu9 46m&sigi=11r8uf7be&sigb=13guj50jp
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Disadvantages of New Technology Less efficient than using power cord Metal objects can obstruct charging Battery back-up needed if leaving power port zone Limited distance of charging capability
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