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Groups > sci.physics.relativity > #364482
| From | Poutnik <Poutnik4NNTP@gmail.com> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: Was Dirac serious? |
| Date | 2015-09-18 18:15 +0200 |
| Organization | Good company |
| Message-ID | <mthd7i$fe7$1@dont-email.me> (permalink) |
| References | <8ba76db8-f79e-4458-b933-a7822311231a@googlegroups.com> <mth43o$9lc$1@dont-email.me> |
On 09/18/2015 03:39 PM, Poutnik wrote: > On 09/18/2015 02:55 PM, partso2@yahoo.com wrote: >> Dirac had a proof that any relativistic theory which includes Heisenberg's principle, must yield that the velocity of *any* particle is c at any given moment. E.g., the electron always moves at c. And if we measure its velocity as < c, that's because it changes direction every few instances. It moves at c at (say) positive x direction, then for a little while it goes back in the negative x direction, again at c, then again in the positive direction for a while, and so on, so its *average* velocity is always < c, although its instanteous velocity at every instant must be exactly c. >> >> Now my question: did he seriously propose that the electron always moves at c? that would mean that its changes of direction are instanteous (of course), implying that an infinite force was applied, and the conservation of momentum was violated, and its momentum at every instant is infinite (or -infinite) so that the momentum of every system is essentially undefined (being the sum of many infinites and -infinites) so that conservation of momentum is meaningless even for large systems, as well as many other physical and philosophycal problems. >> >> It seems to me that Dirac has simply proves that there is no way to combine relativity with Heisenberg. > This can provide some ideas about that. > > http://ag-physics.org/electron/ > See also https://en.wikipedia.org/wiki/Zitterbewegung >> >> Also, another question. Given a photon moving away from any mass, it must lose energy, as it moves towards a region of greater gravitational potential.. But what if its energy (its E=hv) is simply smaller than the energy it's supposed to lose? that is, it's a photon of too long a wavelength. Will it simply disappear in the middle? I saw the answer in a textbook once, but I can't find it now. >> If it is smaller, than it would be emitted inside the event horizon of black hole. -- Poutnik ( the Czech word for a wanderer ) Knowledge makes a great man humble, but a small man arrogant. Eventual Wikipedia articles are provided with intention of a convenient reference, not as an evidence, argument, and usually not as a primary source of my knowledge.
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Was Dirac serious? partso2@yahoo.com - 2015-09-18 05:55 -0700
Re: Was Dirac serious? Poutnik <Poutnik4NNTP@gmail.com> - 2015-09-18 15:39 +0200
Re: Was Dirac serious? Poutnik <Poutnik4NNTP@gmail.com> - 2015-09-18 18:15 +0200
Re: Was Dirac serious? partso2@yahoo.com - 2015-09-19 11:04 -0700
Re: Was Dirac serious? Poutnik <poutnik4nntp@gmail.com> - 2015-09-19 23:54 +0200
Re: Was Dirac serious? shuba <tim@sh.uba> - 2015-09-20 01:55 +0000
Re: Was Dirac serious? Poutnik <poutnik4nntp@gmail.com> - 2015-09-20 11:33 +0200
Re: Was Dirac serious? Rafael Valls Hidalgo-Gato <rvalls162@gmail.com> - 2015-09-18 07:31 -0700
Re: Was Dirac serious? "Dono," <sa_ge@comcast.net> - 2015-09-18 08:07 -0700
Re: Was Dirac serious? wugi <brol@brol.be> - 2015-09-19 22:06 +0200
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