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German student creates electromagnetic harvester that gathers free ...
We are, after all, just talking about wireless power transfer — just like the ... As a concept, though, Siegel's electromagnetic harvester is very interesting. ... There are urban legends about people who install coils of wire in their garage, ... .. This creates a pressure wave which creates wind as air rushes away ... |
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Charging Batteries without Wires | MIT Technology Review
The idea of beaming power through the air has been around for ... The phenomenon behind this sort of wireless-energy transfer is ... outlet and emit low- frequency electromagnetic radiation in the range of 4 to 10 megahertz, explains Soljačić. ... This is due to the low frequency of the radio waves, says John ... |
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Classical waves transfer energy without transporting matter through the medium. Waves ... from wires and go free as Maxwell's waves — electromagnetic waves. |
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