SAN FRANCISCO - Imagine juicing up your laptop computer or cell phone without plugging them into an electrical socket. That's a luxury that could be provided by wireless power transmission, a concept that has been bandied about for decades but is creeping closer to becoming viable.

By Castelvecchi, Davide Cutting the last cord could resonate with our increasingly gadget- dependent lives Marin Soljacic was understandably nervous. The young physicist was about to give his first public presentation of an idea that sounded almost too good to be true.

By Brian Bergstein CAMBRIDGE, Mass. -- The telegraph gave way to the radio, cellular towers unstrung phones and Wi-Fi liberated computer data. Now, the last knotty wire that seemed destined to remain -- the power cord -- could be on its way out.

By Brian Bergstein Associated Press BOSTON - Massachusetts Institute of Technology researchers made a 60-watt light bulb glow by sending it energy wirelessly - from a device 7 feet away - potentially heralding a future in which cell phones and other gadgets get juice without having to be plugged in.

BOSTON | Massachusetts Institute of Technology researchers made a 60-watt light bulb glow by sending it energy wirelessly - from a device 7 feet away - potentially heralding a future in which cell phones and other gadgets get juice without having to be plugged in.