On 8/23/2009 3:03 PM, Boris shtrasman wrote:
Sorry for the OT ,
But i guess using systems in other ways then they had been designed is a
bug that not only i posses.
I heard a lot about wireless power transition , while I heard about
products that provide close distant power transmitting (1) what about
using public wifi in my area ?
I met many people that "heard" about some one that know some one that
has access to device that uses radio signal to transfer low amount of
power in short ranges.
As i googled about it i guess it can be done using rectennas but only in
close range to _High_ power radio transmitters (2)
My question is it possible to be done with small radio signal equipment
as Wi-Max and Wi-Fi ,Perhaps even with the new terrestrial transitions.
Do any one have links to this kind of devices ?
I don't have a link now but I saw a thread somewhere about the myth of stealing
power from powerlines with a large coil, and the calculation came to the point
if I remember the numebers correctly that you may be able to run a 1.5v light
bulb using several tons of copper if your are several feet from the power line.
I doubt wifi is any better in this respect.
(1)
http://www.economist.com/sciencetechnology/tq/displayStory.cfm?story_id=13174387
(2)
http://www.telegraph.co.uk/technology/3336114/Over-to-you-Mythical-electricity.html
10x in advance.
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