Article View: sci.physics.relativity
Article #6033Re: BRYAN WALLACE AGAINST JEAN-MARC LEVY-LEBLOND
From: Pentcho Valev
Date: Sun, 02 Dec 2007 09:00
Date: Sun, 02 Dec 2007 09:00
147 lines
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9775 bytes
On Dec 1, 16:42, "fritz...@bellsouth.net" <fritz...@bellsouth.net> wrote: > On Dec 1, 3:02 am, Pentcho Valev <pva...@yahoo.com> wrote: > > >Snip > > > Jean-Marc Levy-Leblond's discovery was confirmed by three other > > geniuses: > > >Snip > > >http://www.worldscibooks.com/physics/4114.html > > Jong-Ping Hsu: "....unexpected affirmative answer to the long-standing > > question of whether it is possible to construct a relativity theory > > without postulating the constancy of the speed of light and retaining > > only the first postulate of special relativity. This question was > > discussed in the early years following the discovery of special > > relativity by many physicists, including Ritz, Tolman, Kunz, Comstock > > and Pauli, all of whom obtained negative answers." > > I don't think that Jong-Ping Hsu is correct about Ritz on this matter. > Ritz went to his grave preaching c+v. > > http://www.datasync.com/~rsf1/crit/1908a.htm > > Bob Fritzius This Hsu seems to be a zombie, not a hypnotist. All hypnotists in Einstein criminal cult know that the equation c'=c+v given by the emission theory of light is correct and that it is consistent with any relevant experiment: http://www.amazon.com/Relativity-Its-Roots-Banesh-Hoffmann/dp/0486406768 "Relativity and Its Roots" by Banesh Hoffmann, Chapter 5. (I do not have the text in English so I am giving it in French) Banesh Hoffmann, "La relativite, histoire d'une grande idee", Pour la Science, Paris, 1999, p. 112: "De plus, si l'on admet que la lumiere est constituee de particules, comme Einstein l'avait suggere dans son premier article, 13 semaines plus tot, le second principe parait absurde: une pierre jetee d'un train qui roule tres vite fait bien plus de degats que si on la jette d'un train a l'arret. Or, d'apres Einstein, la vitesse d'une certaine particule ne serait pas independante du mouvement du corps qui l'emet! Si nous considerons que la lumiere est composee de particules qui obeissent aux lois de Newton, ces particules se conformeront a la relativite newtonienne. Dans ce cas, il n'est pas necessaire de recourir a la contraction des longueurs, au temps local ou a la transformation de Lorentz pour expliquer l'echec de l'experience de Michelson-Morley. Einstein, comme nous l'avons vu, resista cependant a la tentation d'expliquer ces echecs a l'aide des idees newtoniennes, simples et familieres. Il introduisit son second postulat, plus ou moins evident lorsqu'on pensait en termes d'ondes dans l'ether." Translation from French: "Moreover, if one admits that light consists of particles, as Einstein had suggested in his first paper, 13 weeks earlier, the second principle seems absurd: a stone thrown from a fast-moving train causes much more damage than one thrown from a train at rest. Now, according to Einstein, the speed of a particle would not be independent of the state of motion of the emitting body! If we consider light as composed of particles that obey Newton's laws, those particles would conform to Newtonian relativity. In this case, it is not necessary to resort to length contration, local time and Lorentz transformations in explaining the negative result of the Michelson-Morley experiment. Einstein however, as we have seen, resisted the temptation to explain the negative result in terms of Newton's ideas, simple and familiar. He introduced his second postulate, more or less evident as one thinks in terms of waves in aether." http://www.aip.org/history/einstein/essay-einstein-relativity.htm This reprints an essay written ca. 1983, "'What Song the Syrens Sang': How Did Einstein Discover Special Relativity?" in John Stachel, Einstein from "B" to "Z". "The idea that a light beam consisted of a stream of particles had been espoused by Newton and maintained its popularity into the middle of the 19th century. It was called the "emission theory" of light, a phrase I shall use. The need to explain the phenomena of interference, diffraction and polarization of light gradually led physicists to abandon the emission theory in favor of the competing wave theory, previously its less-favored rival. Maxwell's explanation of light as a type of electromagnetic wave seemed to end the controversy with a definitive victory of the wave theory. However, if Einstein was right (as events slowly proved he was) the story must be much more complicated. Einstein was aware of the difficulties with Maxwell's theory-and of the need for what we now call a quantum theory of electromagnetic radiation-well before publishing his SRT paper. He regarded Maxwell's equations as some sort of statistical average-of what he did not know, of course-which worked very well to explain many optical phenomena, but could not be used to explain all the interactions of light and matter. A notable feature of his first light quantum paper is that it almost completely avoids mention of the ether, even in discussing Maxwell's theory. Giving up the ether concept allowed Einstein to envisage the possibility that a beam of light was "an independent structure," as he put it a few years later, "which is radiated by the light source, just as in Newton's emission theory of light." http://press.princeton.edu/chapters/i6272.html John Stachel: "Not only is the theory [of relativity] compatible with an emission theory of radiation, since it implies that the velocity of light is always the same relative to its source; the theory also requires that radiation transfer mass between an emitter and an absorber, reinforcing Einstein's light quantum hypothesis that radiation manifests a particulate structure under certain circumstances." http://www.gobiernodecanarias.org/educacion/fundoro/einstein_2nd/abstract_booklet_web.pdf Jean Eisenstaedt: "In 1786, Robert Blair, an unknown astronomer from Edinburgh, gave a systematic treatment of a -classical and relativistic-Newtonian kinematics of light. Two years before, John Michell had developed a Newtonian theory of the action of gravitation on light, and invented what Laplace later called dark bodies. In the same way Soldner will calculate the deviation of light due to gravitation. Michell had also pointed out that the velocity of light could be measured with the help of refraction experiments and put forward the essence of the Einstein Doppler gravitational effect. Blair went a step further and inferred the existence of the Doppler- Fizeau effect: a variation of refraction due to a relative motion of the source and the observer." http://ustl1.univ-lille1.fr/culture/publication/lna/detail/lna40/pgs/4_5.pdf Jean Eisenstaedt: "Il n'y a alors aucune raison theorique a ce que la vitesse de la lumiere ne depende pas de la vitesse de sa source ainsi que de celle de l'observateur terrestre ; plus clairement encore, il n'y a pas de raison, dans le cadre de la logique des Principia de Newton, pour que la lumiere se comporte autrement - quant a sa trajectoire - qu'une particule materielle. Il n'y a pas non plus de raison pour que la lumiere ne soit pas sensible a la gravitation. Bref, pourquoi ne pas appliquer a la lumiere toute la theorie newtonienne ? C'est en fait ce que font plusieurs astronomes, opticiens, philosophes de la nature a la fin du XVIIIeme siecle. Les resultats sont etonnants... et aujourd'hui nouveaux." Translation from French: "Therefore there is no theoretical reason why the speed of light should not depend on the speed of the source and the speed of the terrestrial observer as well; even more clearly, there is no reason, in the framework of the logic of Newton's Principia, why light should behave, as far as its trajectory is concerned, differently from a material particle. Neither is there any reason why light should not be sensible to gravitation. Briefly, why don't we apply the whole Newtonian theory to light? In fact, that is what many astronomers, opticians, philosophers of nature did by the end of 18th century. The results are surprising....and new nowadays." Pentcho Valev pvalev@yahoo.com
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X-Google-Thread: 10f545,218e63d076be118d X-Google-Thread: 10b271,218e63d076be118d X-Google-Thread: fa4c1,218e63d076be118d X-Google-Thread: 1139f8,218e63d076be118d X-Google-Thread: f55d3,218e63d076be118d X-Google-Attributes: gid10f545,gid10b271,gidfa4c1,gid1139f8,gidf55d3,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!s36g2000prg.googlegroups.com!not-for-mail From: Pentcho Valev <pvalev@yahoo.com> Newsgroups: sci.physics.relativity, sci.physics, fr.sci.physique, fr.sci.maths, fr.sci.philo Subject: Re: BRYAN WALLACE AGAINST JEAN-MARC LEVY-LEBLOND Date: Sun, 2 Dec 2007 01:00:07 -0800 (PST) Organization: http://groups.google.com Lines: 147 Message-ID: <3ee2b432-5d57-4fb7-bd77-5dd0a8159caa@s36g2000prg.googlegroups.com> References: <a47ee915-67fe-4c2f-bc87-8fa2c78635b6@s12g2000prg.googlegroups.com> <5b971c6d-f01a-4c9c-aec8-c6bb505def46@o42g2000hsc.googlegroups.com> NNTP-Posting-Host: 85.91.141.159 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: posting.google.com 1196586008 1659 127.0.0.1 (2 Dec 2007 09:00:08 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Sun, 2 Dec 2007 09:00:08 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: s36g2000prg.googlegroups.com; posting-host=85.91.141.159; posting-account=Lz-LbgoAAABPDavKeW-eYeobwLHD_cvQ User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30),gzip(gfe),gzip(gfe) Content-Disposition: inline