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On 14 sep, 05:06, "Szczepan Bialek" wrote:
*"tom" wrotenews:4c8eceb5$0$24412$80 ... On 9/13/2010 12:15 PM, Szczepan Bialek wrote: This favored hypothesis of liquid antenna possibilities because would suffice for the ions (charges) of the liquid vibrate slightly around their points of rest to act as radiators (I do not to solve issues related + ion mass to best "close" my questions). Ions in copper vibrate with the acoustic frequencies. Cool! *Which frequencies are the acoustic ones? Do not you heard about the kids telephone? The two cans and the wire. The ions in the wire are the medium for the acoustic waves. For the electric waves the medium are the electrons. The same is with the Sun. The bumps on the surface we see after 8 min. The auroras after a few days. S* Sorry S* I did not read this post (I have to solve aome problem with Google "tree view"). When I talked about ions I do it thinking in electrolytes containing feee heavy ions, not isolators. My doubts with "mass" are about radiation of heavy ions with low electric fields. Larmor analysis shows radiaton of ions must be various orders of magnitud below radiation of electrons at lower electric fields intensities because its larger mass. We need higher electric fields intensities to get accelerations capable of radiating equivalent power obtained from electrons with lower E fields, then I believe they are not responsibles of useful possible EM radiation in our conditions. Athough I have built ionic 50 ohms dummy loads with salt and water, then, I saw it is possible to establish VHF frequencies currents in such electroytes, however Larmor equation would dismiss (I think) efficient ions's radiation from it. Physics books explain EM wave reflections saying low energy EM photons can transfer its energy to electrons, and they inmediatily return this energy at the same frequencies (they not become "excited"), then I think that a possible explanatory mechanism is that radiating charges in electrolyte be simply the not free electrons (not heavy ions) vibrations induced by electric field in electrolite. I do not quite trust in NEC optimistic results I got, because I do not know if resistivity model includes electrolytic conductors, but this it is only my ignorance about it, not an sustented opinion. 73 Miguel Ghezzi LU6ETJ |
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