Curt Liljeberg, Chad Kreye, Lisa Harris and Cortnie Goodrich.

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Presentation transcript:

Curt Liljeberg, Chad Kreye, Lisa Harris and Cortnie Goodrich

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.

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.

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

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= 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

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