Re: Wireless power a reality?
- From: Benj <bjacoby@xxxxxxxxxxx>
- Date: Thu, 07 Jun 2007 23:59:15 -0700
Sam Wormley wrote:
Wireless power a reality (Jun 7)
http://physicsweb.org/article/news/11/6/5
The mess of electrical cables that recharge our laptops, mobile phones
and PDAs could soon disappear altogether -- at least according to a team
of US physicists, who have shown how power can be transmitted without
wires using special "resonant" antennas. The researchers used the system
to power a 60-W light bulb placed two metres from a wireless
transmitter, and say that it could be scaled down for use in portable
devices without a loss of efficiency (Science Express doi:
10.1126/science.1143254).
Gosh, just 120 years after Tesla (who holds the patents) MIT
physicists discover magnetic induction and the tuned tank circuit.
Guess that's what keeps that place number one!
.
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