|
 CAMBRIDGE, Mass. (AP) - In a perfect world, there'd be no wires. They clutter the view, get tangled behind desks and limit how far networks can reach. That's why the telegraph gave way to the radio. Cell phones unstrung telecommunications. Wi-Fi liberated computer data.
Now even the last knotty wire that seemed destined to remain — the power cord — could be on its way out.
Massachusetts Institute of Technology researchers announced Thursday they had made a 60-watt light bulb glow by sending it energy wirelessly, potentially previewing a future in which cell phones and other gadgets get juice without having to be plugged in.
|