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| Tags: effect, fresnel |
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#1
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A few years ago, broadband internet was hard to get, and I played with the idea for a while to have a wireless link. Researching the possibilities and vendors I read about "the Fresnel effect", that a beam between two antenna's spreads out, and that it is not enough to have a narrow sight contact between the antenna's, one also needs some width, or else the transmission is impaired. Now, this is weird. This means that some 'photons' follow a curved trajectory, that they are influenced by the receiving antenna, at long distance. Ok, quantum mechanics explains this. But now, consider MMX. Think Fizeau. Is light interference not a typical quantum fenomenon ? Is that not the worst way of measuring an relativistic effect ? Hayek. |
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#2
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Hayek wrote:
A few years ago, broadband internet was hard to get, and I played with the idea for a while to have a wireless link. Researching the possibilities and vendors I read about "the Fresnel effect", that a beam between two antenna's spreads out, and that it is not enough to have a narrow sight contact between the antenna's, one also needs some width, or else the transmission is impaired. Now, this is weird. This means that some 'photons' follow a curved trajectory, that they are influenced by the receiving antenna, at long distance. Ok, quantum mechanics explains this. But now, consider MMX. Think Fizeau. Is light interference not a typical quantum fenomenon ? Is that not the worst way of measuring an relativistic effect ? Calculate the numeric aperture of an antenna for your purpose vs. its Airy circle. It is better to know something factual about which you spew before you condemn all of physics for being as ignorant as you are. The Fizeau experiment was performed in 1849, jackass. You are pathetic. http://psheldon.rmwc.edu/ssattar/laserlab.htm -- Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) "Quis custodiet ipsos custodes?" The Net! |
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