[HCRA] Variations on a them by Tesla

[Rick Lindquist, N1RL]

Migrant labor camp residents have been siphoning off electricity (and
occasionally electrocuting themselves) for decades without a physical
connection to a power source. They use a coil of wire strategically placed
within the electromagnetic field of a high-voltage transmission line -
essentially an airwound transformer. The coil was greater than 2 meters away
from the overhead line, I'm sure, but the resulting voltage had to be rather
unpredictable.

73

-----Original Message-----
From: hcra-bounces at mailman.qth.net [mailto:hcra-bounces at mailman.qth.net] On
Behalf Of Daniel Sullivan
Sent: Thursday, June 07, 2007 3:23 PM
To: VWS at mail.viennawireless.org; hcra at mailman.qth.net; rlx at yahoogroups.com
Subject: [HCRA] Variations on a them by Tesla

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Thursday, June 7, 2007
MIT discovery could unplug your iPod forever

http://www.boston.com/business/ticker/2007/06/mit_discovery_c.html

The latest technical advance out of MIT could dramatically change the 
drudgery of recharging portable devices: An MIT research team has figured 
out how to wirelessly illuminate an unplugged light bulb from seven feet 
away.

Details about WiTricity, or wireless electricity, are scheduled to be 
reported today in Science Express, the advance online publication of the 
journal Science, the Massachusetts Institute of Technology said.

In a December story in the Globe, MIT physicist Marin Soljacic sketched out 
a vision of how everything from iPods to laptops could be wirelessly 
recharged by using a carefully designed magnetic field to deliver power to 
such devices from a range of 10 to 15 feet.

Now, MIT said, Soljacic and a research team he works with have some data to 
begin validating his theory - namely, the successful experiment to light a 
60-watt light bulb from a power source two meters away, with no physical 
connection between the power source and the light bulb.

If Soljacic's idea bears fruit, consumers could be truly unplugged, their 
rechargers replaced by single device that transmits power wirelessly.
(By Chris Reidy, Globe staff)
Posted by Boston Globe Business Team at 01:42 PM

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