In reply to John Fields's message of Sat, 19 Sep 2009 10:08:09 -0500: Hi, [snip] >On Sat, 19 Sep 2009 14:18:54 +0200, you wrote: > >>John, sorry for the late answer. >> >>Unwanted induction heating on rings necklaces etc: they say it doesn't >>happen because you need very fine tuning to receive (see the TED video >>I linked to, the guy walks happily through the power beam, same thing >>for the original MIT research team photographed while sitting in the >>beam, photo shown in the video) > >--- >As far as I know, the ring or necklace would act like a shorted >single-turn secondary of a transformer and would heat up without regard >to the frequency of the field, the heating depending only on the turn's >resistance, its orientation relative to the field it was in, and the >intensity of the field.
I agree, however because a metal ring wouldn't be tuned, the energy transfer would go as 1/r^2, and be just as inefficient as an air core transformer at considerable distance, so I don't think heating would be a problem unless you were quite close to the source. IOW best placement in the home for the transmitters would probably be in the ceiling. BTW while we are on the topic, consider that it might be possible to use the lower Van Allen belt as the transmitter, allowing reception of free power. (The belt itself is of course powered by the solar wind). There should be a point where the strength of the Earth's magnetic field results in a cyclotron frequency that has a wavelength long enough to reach the Earth's surface, ensuring that we are within 1 wavelength of the "transmitter". I have for some time suspected that this concept may lie behind some of the stranger free energy devices. [snip] Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/Project.html
