New research shows you can extract a tiny voltage and current from a stationary tube in the earth’s magnetic field. Is this real? It is scaleable to be useful?
Paper: http://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.7.013285
IEEE article: http://spectrum.ieee.org/decarbonized-future
Forum: http://www.eevblog.com/forum/blog/eevblog-1680-free-energy-from-the-earths-magnetic-field/
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