Fótons

Robson Z. Conti Pesquisador Senior Joined: 09 Jan 2012 Posts: 396 Location: Jundiaí

Posted: Sun Nov 04, 2012 8:34 pm Post subject: Fótons Tendo em vista a já conhecida ordem de despejo emitida pelo Sr. admin, estou adiantando alguns assuntos que estavam aguardando para ser tratados com mais calma. http://en.wikipedia.org/wiki/Photons Experimental checks on photon mass "The photon is currently understood to be strictly massless, but this is an experimental question. If the photon is not a strictly massless particle, it would not move at the exact speed of light in vacuum, c. Its speed would be lower and depend on its frequency. Relativity would be unaffected by this; the so-called speed of light, c, would then not be the actual speed at which light moves, but a constant of nature which is the maximum speed that any object could theoretically attain in space-time.[21] Thus, it would still be the speed of space-time ripples (gravitational waves and gravitons), but it would not be the speed of photons. A massive photon would have other effects as well. Coulomb's law would be modified and the electromagnetic field would have an extra physical degree of freedom. These effects yield more sensitive experimental probes of the photon mass than the frequency dependence of the speed of light. If Coulomb's law is not exactly valid, then that would cause the presence of an electric field inside a hollow conductor when it is subjected to an external electric field. This thus allows one to test Coulomb's law to very high precision.[22] A null result of such an experiment has set a limit of m ≲ 10−14 eV/c2.[23] Sharper upper limits have been obtained in experiments designed to detect effects caused by the galactic vector potential. Although the galactic vector potential is very large because the galactic magnetic field exists on very long length scales, only the magnetic field is observable if the photon is massless. In case of a massive photon, the mass term 1/2m2AmiAmi would affect the galactic plasma. The fact that no such effects are seen implies an upper bound on the photon mass of m < 3×10−27 eV/c2.[24] The galactic vector potential can also be probed directly by measuring the torque exerted on a magnetized ring.[25] Such methods were used to obtain the sharper upper limit of 10−18eV/c2 (the equivalent of 1.07×10−27 atomic mass units) given by the Particle Data Group.[26] These sharp limits from the non-observation of the effects caused by the galactic vector potential have been shown to be model dependent.[27] If the photon mass is generated via the Higgs mechanism then the upper limit of m≲10−14 eV/c2 from the test of Coulomb's law is valid.” [grifos meus] Era só o que faltava, experimentos estão mostrando que fótons têm massa e, para salvar as mais conhecidas teses do meu amigo Einstein, estão dizendo que nem a própria luz se propagaria à velocidade da luz, e sim apenas entidades jamais observadas, ondas gravitacionais e grávitons (isto é ótimo, como falácia é a perfeição, não há como conferir, é como botar a culpa em quem já morreu). Seria cômico, de rolar de rir, como no futuro farão ao ver o que consideramos verdade na era pré-civilização em que vivemos (convenhamos, não dá para considerar a nossa sociedade planetária uma civilização, basta abrir os jornais e constatar que dez milênios depois, apenas sofisticamos as cavernas), na qual os questionamentos e pedidos de esclarecimento são respondidos com o silêncio, a exclusão e o fechamento dos canais de discussão (pelo menos já abandonamos as fogueiras físicas). Seria cômico... mas é trágico. []s _________________ O mundo é simples, é tudo igual, é tudo célula de convecção.