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#11
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On May 6, 12:33*am, Mike wrote:
On May 6, 3:49*am, Eric Gisse wrote: On May 5, 10:23*pm, Koobee Wublee wrote: On May 5, JanPB wrote: Mike wrote: Suppose this allien mathematical genius arrives to earth and he is presented with the GR equations. He knows nothing about Newtonian physics, he oes not know what force means for earthlinks, he has never seen F = dp/dt, or F =ma or, F = GMm/r^2 He is asked to find out what are the equations of motion in the weak field limit. Will he be able to derive Newton's laws of motion and universal law of graviation in the weak field limit from the GR equations? Yes. There is no wiggle room there. Ask him/her/it to write down for you where the wiggle room is. Then post it here. There are an infinite number of solutions to the field equations. *In vacuum, one such solution can be the following. ds^2 = G c^2 dt^2 / (1 + r / K) K^4 (1 + r / K) dr^2 / r^4 * * * K^2 (1 + K / r)^2 dO^2 Where ** *G = Dimensionless constant ** *K = Constant of length ** *dO^2 = r^2 cos^2(Latitude) dLongitude^2 + r^2 dLatitude^2 It is static and spherically symmetric. *However, it is not asymptotically flat. *Nevertheless, it is still a valid solution. Does it degenerate into Newtonian law of gravity? *No. Therefore, Mike is correct on this one. *Both Professor Draper and Mr. |
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#12
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On May 6, 5:34*am, "Juan R." Gonzαlez-Αlvarez
wrote: Koobee Wublee wrote on Mon, 05 May 2008 23:23:02 -0700: Therefore, Mike is correct on this one. *Both Professor Draper and Mr. Bielawski are very wrong. *It is time for both gentlemen to propose a graceful retreat. Mike is correct. GR does not reduce to NG in the weak field limit. Although I have not researched the issue extensively as you have done, my understanding is that one has to assume a specific form of the metric to make the linearized equations converge to NG because there are virtually infinite solutions. Maybe you may want to corerct me here if I am wrong. The form of the metric chosen though, implies NG at the weak field limit. Then to come back and assert that GR converges to NG, is a petitio principii, the worse of all falalcies but one found in many places in both SR and GR. It is also found in NM books on some subjects but this is beyond the subject for now. Mike During the thread on Newtonian limit difficulties of GR I have discussed this point with an expert on curved spacetime equations of motion, Eric Poisson [1]. Eric confirms my finding that a = 0 in the linear regime of GR: (\blockquote *Since the energy-momentum tensor is already of first-order, in the *linearized theory the conservation equations must be written down with *the Minkowski metric, and this implies that the matter cannot have *gravitational interactions. Or as you point out, particles would have *to move on straight lines. ) Textbooks and lecture notes take the weak field limit in a wrong way. E.g. Carroll takes the fake limit Z[a] = - L[\Gamma] Z[v v] instead the correct one L[a] = - L[\Gamma v v] = - L[\Gamma] Z[v v] Prof. Carlip adds a couple of more mistakes and falsifications to his 'derivation'. Indeed GR has not Newtonian limit in weak field or not. [1] *http://relativity.livingreviews.org/...es/lrr-2004-6/ --http://canonicalscience.org/en/miscellaneouszone/guidelines.txt |
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#13
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On May 6, 4:52*am, Eric Gisse wrote:
On May 6, 12:33*am, Mike wrote: On May 6, 3:49*am, Eric Gisse wrote: On May 5, 10:23*pm, Koobee Wublee wrote: On May 5, JanPB wrote: Mike wrote: Suppose this allien mathematical genius arrives to earth and he is presented with the GR equations. He knows nothing about Newtonian physics, he oes not know what force means for earthlinks, he has never seen F = dp/dt, or F =ma or, F = GMm/r^2 He is asked to find out what are the equations of motion in the weak field limit. Will he be able to derive Newton's laws of motion and universal law of graviation in the weak field limit from the GR equations? Yes. There is no wiggle room there. Ask him/her/it to write down for you where the wiggle room is. Then post it here. There are an infinite number of solutions to the field equations. *In vacuum, one such solution can be the following. ds^2 = G c^2 dt^2 / (1 + r / K) K^4 (1 + r / K) dr^2 / r^4 * * * K^2 (1 + K / r)^2 dO^2 Where ** *G = Dimensionless constant ** *K = Constant of length ** *dO^2 = r^2 cos^2(Latitude) dLongitude^2 + r^2 dLatitude^2 It is static and spherically symmetric. *However, it is not asymptotically flat. *Nevertheless, it is still a valid solution. Does it degenerate into Newtonian law of gravity? *No. Therefore, Mike is correct on this one. *Both Professor Draper and Mr. Bielawski are very wrong. *It is time for both gentlemen to propose a graceful retreat. Yes, gracefully retreat from the cranks who confuse persistence of lies with facts.- Hide quoted text - To me and to many people I know, a crank and an imbecile, is a person who while it insists GR is a correct theory of gravitation, he thinks that a = GM/r^2 is and ordinary differential equation. Such a crank exists and is called Eric Gisse as these posts proves beyond any doubt: http://groups.google.gr/group/sci.ph...g/01b8793b2b1f... Eric Gisse's excuse for not being able to sove a simple mechanics problem: "One of these days I'll stop posting on groups when I'm sleep deprived." http://groups.google.gr/group/sci.ph...g/cc76e4770a62... Now, who is the crank here? The one who can't admit he made a mistake. Do you know if radiation pressure exists yet? Dig hard... you are a troll. You are supposed to be in school, yet you instantly reply to 99% of the posts in these groups. Mike Mike - Show quoted text -- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
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#14
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On May 6, 5:25*am, Mike wrote:
On May 6, 4:52*am, Eric Gisse wrote: On May 6, 12:33*am, Mike wrote: On May 6, 3:49*am, Eric Gisse wrote: On May 5, 10:23*pm, Koobee Wublee wrote: On May 5, JanPB wrote: Mike wrote: Suppose this allien mathematical genius arrives to earth and he is presented with the GR equations. He knows nothing about Newtonian physics, he oes not know what force means for earthlinks, he has never seen F = dp/dt, or F =ma or, F = GMm/r^2 He is asked to find out what are the equations of motion in the weak field limit. Will he be able to derive Newton's laws of motion and universal law of graviation in the weak field limit from the GR equations? Yes. There is no wiggle room there. Ask him/her/it to write down for you where the wiggle room is. Then post it here. There are an infinite number of solutions to the field equations. *In vacuum, one such solution can be the following. ds^2 = G c^2 dt^2 / (1 + r / K) K^4 (1 + r / K) dr^2 / r^4 * * * K^2 (1 + K / r)^2 dO^2 Where ** *G = Dimensionless constant ** *K = Constant of length ** *dO^2 = r^2 cos^2(Latitude) dLongitude^2 + r^2 dLatitude^2 It is static and spherically symmetric. *However, it is not asymptotically flat. *Nevertheless, it is still a valid solution.. Does it degenerate into Newtonian law of gravity? *No. Therefore, Mike is correct on this one. *Both Professor Draper and Mr. Bielawski are very wrong. *It is time for both gentlemen to propose a graceful retreat. Yes, gracefully retreat from the cranks who confuse persistence of lies with facts.- Hide quoted text - To me and to many people I know, a crank and an imbecile, is a person who while it insists GR is a correct theory of gravitation, he thinks that a = GM/r^2 is and ordinary differential equation. Such a crank exists and is called Eric Gisse as these posts proves beyond any doubt: http://groups.google.gr/group/sci.ph...g/01b8793b2b1f.... Eric Gisse's excuse for not being able to sove a simple mechanics problem: "One of these days I'll stop posting on groups when I'm sleep deprived." http://groups.google.gr/group/sci.ph...g/cc76e4770a62.... Now, who is the crank here? The one who can't admit he made a mistake. Do you know if radiation pressure exists yet? Dig hard... you are a troll. You are supposed to be in school, yet you instantly reply to 99% of the posts in these groups. Does radiation pressure exist or not, Mike? Mike Mike - Show quoted text -- Hide quoted text - - Show quoted text -- Hide quoted text - - Show quoted text - |
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#15
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On May 5, 11:23 pm, Koobee Wublee wrote:
There are an infinite number of solutions to the field equations. In vacuum, one such solution can be the following. ds^2 = G c^2 dt^2 / (1 + r / K) K^4 (1 + r / K) dr^2 / r^4 K^2 (1 + K / r)^2 dO^2 Where ** G = Dimensionless constant ** K = Constant of length ** dO^2 = r^2 cos^2(Latitude) dLongitude^2 + r^2 dLatitude^2 It is static and spherically symmetric. However, it is not asymptotically flat. Nevertheless, it is still a valid solution. Does it degenerate into Newtonian law of gravity? No. Therefore, Mike is correct on this one. Both Professor Draper and Mr. Bielawski are very wrong. It is time for both gentlemen to propose a graceful retreat. Another solution that is static, spherically symmetric, and (this time) asymptotically flat is the following. ds^2 = G c^2 dt^2 / (1 + K^2 / r^2) 4 r^2(1 + K^2 / r^2) dr^2 / K^2 r^4 dO^2 / K^2 Does is degenerate into Newtonian law of gravity? No, because it follows an inverse-cubed law instead of the inverse squared law. The Einstein field equations represent an utter nonsense. They suit for the ones to promote mysticism as wisdom. shrug |
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#16
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On May 6, 2:24 pm, Koobee Wublee wrote:
On May 5, 11:23 pm, Koobee Wublee wrote: There are an infinite number of solutions to the field equations. In vacuum, one such solution can be the following. ds^2 = G c^2 dt^2 / (1 + r / K) K^4 (1 + r / K) dr^2 / r^4 K^2 (1 + K / r)^2 dO^2 Where ** G = Dimensionless constant ** K = Constant of length ** dO^2 = r^2 cos^2(Latitude) dLongitude^2 + r^2 dLatitude^2 It is static and spherically symmetric. However, it is not asymptotically flat. Nevertheless, it is still a valid solution. Does it degenerate into Newtonian law of gravity? No. Therefore, Mike is correct on this one. Both Professor Draper and Mr. Bielawski are very wrong. It is time for both gentlemen to propose a graceful retreat. Another solution that is static, spherically symmetric, and (this time) asymptotically flat is the following. ds^2 = G c^2 dt^2 / (1 + K^2 / r^2) 4 r^2(1 + K^2 / r^2) dr^2 / K^2 r^4 dO^2 / K^2 It's the same solution as Schwarzschild's, you merely changed the numbers labelling the spheres of symmetry. Does is degenerate into Newtonian law of gravity? No, because it follows an inverse-cubed law instead of the inverse squared law. I think you meant "inverse-Koobeed" (you knew I'd write that!) Anyway, since you reshuffled the numbers labelling the events, obviously you get a different expression wrt those labels. Using the same method, I can define an electrostatic force that's inversely proportional to the 17th power of the coordinate. This sort of manipulations is just name- changing and as such it obviously has no influence on the physics. The Einstein field equations represent an utter nonsense. They suit for the ones to promote mysticism as wisdom. shrug You've said that before. It's wrong. -- Jan Bielawski |
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#17
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On May 6, 8:28 pm, JanPB wrote:
On May 6, 2:24 pm, Koobee Wublee wrote: Another solution that is static, spherically symmetric, and (this time) asymptotically flat is the following. ds^2 = G c^2 dt^2 / (1 + K^2 / r^2) 4 r^2 (1 + K^2 / r^2) dr^2 / K^2 r^4 dO^2 / K^2 It's the same solution as Schwarzschild's, you merely changed the numbers labelling the spheres of symmetry. The Schwarzschild metric has the following form. ds^2 = c^2 dt^2 (1 + K / r) dr^2 / (1 + K / r) r^2 dO^2 For the queer of England to continue living in that fat castle in the air, he/she/it needs to talk himself/herself/itself into believing both of the above equations are exactly the same. Well, both are solutions to the field equations using the spherically symmetric polar coordinate system and nothing else. There are no coordinate transformations involved. They are just independent solutions to the field equations. shrug As I said before, for a mere $99,999, I will design the universe of your choice from the field equations. I think that is a small price for a universe. Does it degenerate into Newtonian law of gravity? No, because it follows an inverse-cubed law instead of the inverse squared law. I think you meant "inverse-Koobeed" Not at all. shrug (you knew I'd write that!) No. shrug Anyway, since you reshuffled the numbers labelling the events, Hardly. shrug obviously you get a different expression wrt those labels. We are talking about mathematics and not black magic. shrug Using the same method, I can define an electrostatic force that's inversely proportional to the 17th power of the coordinate. You are incoherent as usual. shrug This sort of manipulations is just name- changing and as such it obviously has no influence on the physics. There are no manipulations. shrug You are totally delusional. shrug Please seek psychiatric help. The Einstein field equations represent an utter nonsense. They suit for the ones to promote mysticism as wisdom. shrug You've said that before. It's wrong. Please check yourself in a mental asylum. It will do you good. You will have companies also claiming to be queers of England. |
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#18
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On May 6, 3:18 pm, Eric Gisse wrote:
On May 6, 1:24 pm, Koobee Wublee wrote: Another solution that is static, spherically symmetric, and (this time) asymptotically flat is the following. ds^2 = G c^2 dt^2 / (1 + K^2 / r^2) 4 r^2(1 + K^2 / r^2) dr^2 / K^2 r^4 dO^2 / K^2 Does it degenerate into Newtonian law of gravity? No, because it follows an inverse-cubed law instead of the inverse squared law. The Einstein field equations represent an utter nonsense. They suit for the ones to promote mysticism as wisdom. shrug Its' the same solution as Schwarzschild, idiot. It is not the Schwarzschild metric. Any sane and intelligent person can tell you that. I proved it to you previously. Have you forgotten _already_ ?! http://groups.google.com/group/sci.p...sg/5e4cf198adb... Ahahaha... You continue to show why you remain a multi-year super- senior at the very prestigious University of Alaska majoring in basket weaving. shrug |
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#19
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On May 6, 8:59*pm, Koobee Wublee wrote:
On May 6, 3:18 pm, Eric Gisse wrote: On May 6, 1:24 pm, Koobee Wublee wrote: Another solution that is static, spherically symmetric, and (this time) asymptotically flat is the following. ds^2 = G c^2 dt^2 / (1 + K^2 / r^2) 4 r^2(1 + K^2 / r^2) dr^2 / K^2 * * * r^4 dO^2 / K^2 Does it degenerate into Newtonian law of gravity? *No, because it follows an inverse-cubed law instead of the inverse squared law. *The Einstein field equations represent an utter nonsense. *They suit for the ones to promote mysticism as wisdom. *shrug Its' the same solution as Schwarzschild, idiot. It is not the Schwarzschild metric. *Any sane and intelligent person can tell you that. If there is a coordinate mapping between two supposedly different metrics, they are the same. I proved it to you previously. Have you forgotten _already_ ?! http://groups.google.com/group/sci.p...sg/5e4cf198adb... Ahahaha... *You continue to show why you remain a multi-year super- senior at the very prestigious University of Alaska majoring in basket weaving. *shrug |
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#20
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On May 6, 11:25 pm, Eric Gisse wrote:
On May 6, 10:10 pm, Koobee Wublee wrote: Yes. Or do you somehow think the coordinate labels determine the physics? Choice of coordinate does not change physics. This has been what I have been saying all along. You are merely a malicious troll. That is why you remain a multi-year super-senior even at the University of Alaska. shrug Sink this in. We have no more to discuss if you do not understand the following very basic points. ** The geometry must be invariant. ** The choice of coordinate is observer dependent. ** The metric which together with the coordinate system describes the geometry. Therefore, the metric must be coordinate dependent. Upon proper treatment, all solutions to the field equations are independent although somewhat related to each other. This relationship among all these solutions is what you call transformation. However, at the stage where all these field equations are laid out to be solved of their solutions, the choice of coordinate system is cast in concrete. You cannot change the coordinate system any more. Thus, each solution can only be valid with the already established choice of coordinate system. In this case, it is the common spherically symmetric polar coordinate system. You have been told this many times over. It is time for you to understand this very basic mathematical relationship. shrug Once again, I ask you to explicitly apply a coordinate transformation to G_uv = kT_uv and PROVE that a transformed solution is no longer a solution. Once again, I have told you there is no such transformation. shrug Each solution to the field equations is independent of each other using the same set of coordinate system. Do you not know how, or do you somehow think that proves nothing? Can you dig that, multi-year super-senior? |
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