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#1
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Richard Clark wrote:
Cecil Moore wrote: some people use that exact same argument to try to prove that no current is flowing in the middle of a transmission line Or uncanceled reflections brighter than the sun are black. In a lossless system sourced by monochromatic coherent light, if the 1st medium is air and if the index of refraction of the 3rd medium is the square of the index of refraction of the 1/4WL 2nd medium, then all reflections are canceled in the 1st medium. That's one of the rules of optics for non-reflective coatings. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#2
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On Sat, 13 Aug 2005 22:34:38 -0500, Cecil Moore
wrote: then all reflections are canceled in the 1st medium "all," of course, if you discard precision to force the theory to fit the expectations. About as respectable as E = M · C² ±3dB |
#3
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Richard Clark wrote:
Cecil Moore wrote: then all reflections are canceled in the 1st medium "all," of course, if you discard precision to force the theory to fit the expectations. About as respectable as E = M · C² ±3dB Given an ideal system with carefully selected boundary conditions, all reflections are canceled. That is a concept, not something that can be achieved in reality. Your height and weight on your driver's license is not 100% accurate either but it is good enough for government work. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
#4
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On Sun, 14 Aug 2005 07:23:56 -0500, Cecil Moore
wrote: Your height and weight ±3dB? All the expectation of a Dr. Atkins diet. |
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