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On 12 sep, 22:17, Richard Clark wrote:
On Sun, 12 Sep 2010 15:30:04 -0700 (PDT), lu6etj wrote: Hello dear Richard, how are you? I hope very well with yours: Mylar conductive ballon replacement it is not a valid refutation for the hipotesis analized, that antenna was only a "test antenna", any liquid antenna can be replaced by a metalic antenna...! what prove that? Hi Miguel, What does it prove? *What does water prove? *That it is a poor replacement? *Yes. I do not know lens dielectric antennas, I learnt radiation it due accelerating charges, That repeated epithet is rather too simple. *An electron is always accelerating. *A circular orbit guarantees that. electrons are charges, free ions also, non free dielectric charges (E field induced dipoles) too; alternating electric field applied to them produce movement on them, then acceleration, then = radiation. Am I wrong? (yes I know, loss too sometimes). Does swinging a battery around produce radiation? You say: "This reflection is a function of a severe mismatch between two poor conductors. *You don't need sea water to achieve the same thing" What "two" conductors? POOR conductors. you know air not work as a "conductor" in this analitic environment, Right, it is a very poor conductor (and, yet, we still see lightning conducting through it on a summer evening - all a matter of degree). it would the same it there were empty vacuum, reflecting medium properties are responsibles for earth reflections. I suppose so. "Mismatch" it is another magic word, improper of you indeed my friend!, not an explanation :) Magic happens. Classic EM radiation (or the same "re-irradiation") it sometimes explained due accelarating charges, and YES, I agree with you, certainly "you do not need sea water to achieve the same thing", you can do it with any other vibrating charge, sea water charges it is only one possibility, conductors, soil substances are other familiar things capable to do it. So then, classic EM radiation is pretty common, and has lost its magic. We know waves are reflected to ionosphere by those mediums, we can explain that reflections with incident electromagnetic fields and earth surface induced currents; however, "current" not implies here free electrons traveling miles inside a conductor, we have a "current" with any little induced movement on a charge and if this movemente is not constant we have acceleration then = EM radiation, what other classical process could explain the EM earth reflection? I do not know. Mismatch. However I am not supporting practical liquid antennas here, I have not made the experience and I have not theoretical enough knowledge neither to prove or refute the hipotesis without much more working, I only have some pointers to think over about it. Ever hear a flame speaker? *No magnets, no cone, just a flame and an amplifier feeding two probes and *sound* comes out. *No one builds them either. 73's Richard Clark, KB7QHC How easy it is for you, eh? some day I will catch you in spanish... :) Well, it is funny discuss some things with you. (Sorry, I don know how properly quoting with Google, let me use for your sentences). ......... Is not that IEEE paper what you called "the Workbench", have done your duties in "The Bench" to refute that paper? :D ...... What does it prove? What does water prove? That it is a poor replacement? Yes Certainly "a wooden leg it is a poor replacement for the original one" (Capt. Hooke dixit), but it is better than no leg at all when you do not have money to pay "the million dollar man leg". Science deals with possibilities not with Harvard economists efficientist laws. We, carbonous beings have made of electrolites, open your ham mind, what was about spirit of "to boldly go where no man has gone before"? ........ That repeated epithet is rather too simple. An electron is always accelerating. A circular orbit guarantees that. Time ago you have troubles with this item, until today do you not believes Bohr postulates was intended for atomic orbitals?, do you have forgotten ciclotron radiation?, I talked to you about this curious habit of emmiting waves of circular accelerated charges when we are young. ........ Does swinging a battery around produce radiation? Do you believe? ....... Air a POOR conductor of EM? Oh no! you are not my Clarke, this newsgroup has been infiltered by etherians. They have hi jacked my old newsgroup friend...! (electronic ether, where I read that, before?) ...... PSE explain me MISMATCH. (I bet that "mismatch" in some point will ends up in Maxwell's Faraday and generalized Ampere law). 73 (so much english for a day to me) Miguel Ghezzi |
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