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#1
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On Thu, 03 Jan 2008 12:25:59 -0600, Cecil Moore
wrote: The presence of this poster providing misleading information makes this group a rather unique learning environment. For the record: The only controversial assertion that I have ever made is that coherent EM wave cancellation can cause a redistribution of the EM energy in the opposite direction in a transmission line. No one has proved that assertion to be wrong. What an ego to rush to slip into a TNT vest in the hope of being associated with Nobel. As usual, Cecil's arguments are so script driven, that I cannot pass up this mocking opportunity: I shall assert that coherent EM wave cancellation can not cause a redistribution of the EM energy in the opposite direction in a transmission line. No one has proved that assertion to be wrong. Does that misleading statement qualify me for Keith's anointed villain of the group? Cecil certainly has described me as being scurrilous enough to so qualify! ;-) Besides, I think I look better in that vest than he does. 73's Richard Clark, KB7QHC |
#2
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Richard Clark wrote:
I shall assert that coherent EM wave cancellation can not cause a redistribution of the EM energy in the opposite direction in a transmission line. No one has proved that assertion to be wrong. The Melles-Groit and FSU web pages certainly seem to disagree with you. To the best of my knowledge, they prove your assertion to be wrong and support my contention of redistribution of energy after wave cancellation. http://www.mellesgriot.com/products/optics/oc_2_1.htm "Clearly, if the wavelength of the incident light and the thickness of the film are such that a phase difference exists between reflections of p, then reflected wavefronts interfere destructively, and overall reflected intensity is a minimum. If the two reflections are of equal amplitude, then this amplitude (and hence intensity) minimum will be zero." (Referring to 1/4 wavelength thin films.) "In the absence of absorption or scatter, the principle of conservation of energy indicates all 'lost' reflected intensity will appear as enhanced intensity in the transmitted beam. The sum of the reflected and transmitted beam intensities is always equal to the incident intensity. This important fact has been confirmed experimentally." http://micro.magnet.fsu.edu/primer/j...ons/index.html "... when two waves of equal amplitude and wavelength that are 180-degrees ... out of phase with each other meet, they are not actually annihilated, ... All of the photon energy present in these waves must somehow be recovered or redistributed in a new direction, according to the law of energy conservation ... Instead, upon meeting, the photons are redistributed to regions that permit constructive interference, so the effect should be considered as a redistribution of light waves and photon energy rather than the spontaneous construction or destruction of light." In an RF transmission line, since there are only two possible directions, the only "regions that permit constructive interference" at an impedance discontinuity is the opposite direction from the direction of destructive interference. -- 73, Cecil http://www.w5dxp.com |
#3
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On Thu, 03 Jan 2008 14:17:11 -0600, Cecil Moore
wrote: No one has proved that assertion to be wrong. The Melles-Groit and FSU web pages certainly seem to disagree with you. There is a vast gulf between seeming and proving. My assertion stands unassailed! [except for a few pecks by a duck] |
#4
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Richard Clark wrote:
There is a vast gulf between seeming and proving. Richard, you seem to exist. Please prove that you indeed do exist. -- 73, Cecil http://www.w5dxp.com |
#5
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On Thu, 03 Jan 2008 20:58:52 GMT, Cecil Moore
wrote: Richard Clark wrote: There is a vast gulf between seeming and proving. Richard, you seem to exist. Please prove that you indeed do exist. Gad, with built-in failures of logic like this question, it is SO, SO easy, I can do it in stereo: First, I can pinch myself: corporeal reality! However, you are just amusing words on a screen that I can erase at will, hence you are a figment of the imagination - the essential seeminess. Second (this is the same mystery investigated as the Chinese Room Argument), your messages only appear to be intelligent. Subsequent correspondence reveals that to be a fiction. What a pair of slam dunks for the home team. Want to go for the trifecta? Both the first and second tests can be independently corroborated by a multitude of other posters here! Dubito Tu Es |
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