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| Tags: acceleration, pioneer |
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(Spud) wrote in message ...
Is there enough information to state the acceleration is directly towards the sun ? What if there is an acceleration towards the earth ? From the article of John D. Anderson et al http://www.arxiv.org/abs/gr-qc/0104064 explaining the details of the anomaly observed in the Pioneers 10 and 11, "I understand" that the available information is not enough precise to discriminate if the supposed acceleration is towards the Sun or towards the Earth. More precisely, since they also detect annual and diurnal variations in the effect that they suspect are due to: Quotes "...modeling errors in the Earth's ephemeris, the orientation of the Earth's spin axis (precession and nutation), or in the station coordinates (polar motion and length of day variations), the least-squares process (which determines best-fit values of the three direction cosines) will leave small diurnal and annual components in the Doppler residuals..." ... "...We conclude that for both Pioneer 10 and 11, there are small periodic errors in solar system modeling that are largely masked by maneuvers and by the overall plasma noise. But because these sinusoids are essentially uncorrelated with the constant aP , they do not present important sources of systematic error. The characteristic signature of aP is a linear drift in the Doppler, not annual/diurnal signatures..." /Quotes my interpretation is that the authors believe that it is impossible to elucidate your question under the present circumstances. Isn't this worth investigating. It would be interesting to investigate but I don't think the available data of the Pioneers 10 and 11 are precise enough to extract such information. But actually I don't even believe that the observed anomalous acceleration is real but only apparent as I tried to explain in another thread some time ago. Although I am aware that there are many authors that claim to have explained the anomaly using orthodox Physics I nevertheless ask again for comments to my non-orthodox explanation that received no comments when I posted it (except the typical barking from Uncle Al that I always ignore). This is the URL: oogle.com Spud Best regards Carlos L. |
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On 10 Jul 2004 07:55:45 -0700, (Andr? Michaud) wrote:
John C. Polasek wrote in message . .. On Thu, 8 Jul 2004 21:48:18 GMT, (Andr? Michaud) wrote: (Carlos L) wrote in message ... Although I am aware that there are many authors that claim to have explained the anomaly using orthodox Physics I nevertheless ask again for comments to my non-orthodox explanation that received no comments when I posted it (except the typical barking from Uncle Al that I always ignore). This is the URL: oogle.com Spud Best regards Carlos L. I had a look. Here is my comment. It is pretty well established without any doubt that the speed of light of photons is invariant in vacuum and completely independant of the velocity of the source, which is precisely why Doppler ranging can be used at all. As for the doppler data, if it were not to be trusted in this case, this would make this case the only one on record where Doppler data would be found not to be totally precise. To my knowledge, all cases where verification by other means could be used, the precision cannot be questioned. When orthodox theories can't explain some phenomenon, it is common practice to distrust and finally discard the data as being tainted. Nothin new under the Sun. André Michaud [Mod. note: quoted text trimmed -- mjh] I have the explanation for the Pioneer 10 anomaly as Ch. 13 of my Dual Space book. It requires a new law of gravity and new physics. Relativity has no chance of dealing with it. It can't be explained in a few sentences. It needs the whole Dual Space theory. It's real alright. Hi John Yes. We talked about your book in some other thread, and you seemed interested in an exchange. I sent my home address in a message to your e-mail handle (the one mentioned on top of this post) as per your instructions and then fell into wait mode and eventually forgot about the matter. Is your e-mail address mentioned here valid? André Michaud Yes it is. I may have killed your message if it didn't have a convincing title. Please send it again. |
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(Andr? Michaud) wrote in message ...
(Carlos L) wrote in message ... Note: I posted this 5 days ago but since that post has not appeared I remove the follow_ups to sci.physics.research and sci.astro research and I post it again (because I don't want to leave the impression that I've been convinced that my ideas on this issue have been proven wrong). ---------------------- Thanks André for having looked and for your comments about my non-orthodox explanation that was posted in the thread "Pioneer Anomaly" URL: http:// oogle.com Here is my comment. It is pretty well established without any doubt that the speed of light of photons is invariant in vacuum and completely independant of the velocity of the source, which is precisely why Doppler ranging can be used at all. I know "that" and I believe it is true. Unfortunately everybody finds difficult to understand my (very simple) interpretation of the constancy of the speed of light in vacuum. (It must be that I don't explain myself clearly enough). I try again: I do believe that the speed of light is independent of the speed of the source. But I believe that the speed of light in vacuum is always c *relative to the physical apparatus* that detects it. The speed of light will also be c relative to the reference frame of description if the detector is at rest in it (as is generally the case). But since SR does not dare forbid to use detectors that move relative to the reference frame of description, I assume that in these cases the speed of light will no longer be c relative to the frame of description (until some experiment, in vacuum, proves me wrong). An implication of such interpretation is that since "all" detectors, whatever their speed relative to the source, are known to receive light from moving sources it must be assumed that a typical source emits light-type disturbance at a continuum of speeds. (I don't want to discuss in this thread the details of the *other* implications or problems with this idea). My hope here was to find some reader able to believe in the possibility that such idea is compatible with the experimental facts and be willing to discuss my interpretation of the Pioneers anomalies. As for the doppler data, if it were not to be trusted in this case, this would make this case the only one on record where Doppler data would be found not to be totally precise. I also believe that this case (of the Pioneers) is indeed the first in which the Doppler data do not agree with the expected position of a body governed by the very trustable celestial mechanics laws. But this is a special case because, for the Pioneers: (1) the position (as a function of time, therefore including velocity, acceleration, ...) is (supposedly) known with enormous precision and the experimenter is not allowed to say "the disagreement with our Doppler data must be due to our imprecise knowledge of their position". (2) the velocities of the observed bodies (the Pioneers) have a "big" component v along the line of sight, and according to my interpretation, the effect is proportional to such component. That is not the case for the moon that is AFAIK the only other celestial body whose position is known with such precision. To my knowledge, all cases where verification by other means could be used, the precision cannot be questioned. I believe that also. When orthodox theories can't explain some phenomenon, it is common practice to distrust and finally discard the data as being tainted. Well, after having studied and discarded all other "reasonable" explanations, I suppose that it is the best thing to do. Mine has not been contradicted yet except by you that has not fully understood it, (my fault). But anyway, thanks again. Carlos L. André Michaud |
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(Carlos L) wrote in message . com...
(Andr? Michaud) wrote in message ... (Carlos L) wrote in message ... Note: I posted this 5 days ago but since that post has not appeared I remove the follow_ups to sci.physics.research and sci.astro research and I post it again (because I don't want to leave the impression that I've been convinced that my ideas on this issue have been proven wrong). ---------------------- These monitored forums are reserved for discussions on currently accepted orthogox theories and ideas that can be directly related to them. No other ideas will be discussed. Thanks André for having looked and for your comments about my non-orthodox explanation that was posted in the thread "Pioneer Anomaly" URL: http://groups.google.com/groups?selm...g.g oogle.com Here is my comment. It is pretty well established without any doubt that the speed of light of photons is invariant in vacuum and completely independant of the velocity of the source, which is precisely why Doppler ranging can be used at all. I know "that" and I believe it is true. Unfortunately everybody finds difficult to understand my (very simple) interpretation of the constancy of the speed of light in vacuum. (It must be that I don't explain myself clearly enough). I try again: I do believe that the speed of light is independent of the speed of the source. But I believe that the speed of light in vacuum is always c *relative to the physical apparatus* that detects it. Isn't that somewhat contradictory with what you say in the previous sentence? You do imply here that velocity c of EM energy, although independent of the source (which implies that c may be an absolute velocity for EM energy in vacuum), would not be independent of the velocity of a physical apparatus that would detect it. That's what brought my comment. If c were an absolute velocity in vacuum for EM energy, it seems to me not to be reconcilable with the idea that it could at the same time be relative to an apparatus that may itself have a velocity. I would agree if said apparatus could be immobilized with respect to vacuum, but how could this be achieved? Aren't we confronted here whith the age old lack (or perceived lack) of an absolute reference with respect to which such zero velocity could be achieved in vacuum? The speed of light will also be c relative to the reference frame of description if the detector is at rest in it (as is generally the case). But since SR does not dare forbid to use detectors that move relative to the reference frame of description, I assume that in these cases the speed of light will no longer be c relative to the frame of description (until some experiment, in vacuum, proves me wrong). I see your point, but ref to my interrogation above. An implication of such interpretation is that since "all" detectors, whatever their speed relative to the source, are known to receive light from moving sources it must be assumed that a typical source emits light-type disturbance at a continuum of speeds. Your postulate seems to imply this of course, but I personally lean towards concluding, from all experimental evidence that I considered, that c would be an absolute velocity in vacuum, unless experiments could show otherwise. (I don't want to discuss in this thread the details of the *other* implications or problems with this idea). My hope here was to find some reader able to believe in the possibility that such idea is compatible with the experimental facts and be willing to discuss my interpretation of the Pioneers anomalies. I would be willing to discuss but I must say that I have been convinced for long time that velocity of EM energy is invariant in vacuum and not relative to any source or observer. As for the doppler data, if it were not to be trusted in this case, this would make this case the only one on record where Doppler data would be found not to be totally precise. I also believe that this case (of the Pioneers) is indeed the first in which the Doppler data do not agree with the expected position of a body governed by the very trustable celestial mechanics laws. Trustable only in light of what we knew before. Consider that both Pioneers are the first small bodies that have been sent on hyperbolic escape trajectories from the Solar system with us receiving EM signals from them for quite a while. This is the first data available for small bodies on such trajectories. I am not that surprised that our physics theories (classical as well as relativistic) may not be able to predict with precision observed behaviour that could be observed only in such cases and that had not been observed before. But this is a special case because, for the Pioneers: (1) the position (as a function of time, therefore including velocity, acceleration, ...) is (supposedly) known with enormous precision As I said, according to the state of our theories, which are based on the only data that was available previously. and the experimenter is not allowed to say "the disagreement with our Doppler data must be due to our imprecise knowledge of their position". If the Doppler data is ok, then I say our theories simply need to be reconsidered in light of this new data on top of all previously verified data. (2) the velocities of the observed bodies (the Pioneers) have a "big" component v along the line of sight, and according to my interpretation, the effect is proportional to such component. Yes, making the Doppler data all the more significant in my view, almost "ideally" significant. That is not the case for the moon that is AFAIK the only other celestial body whose position is known with such precision. And that are not small bodies on hyperbolic escape trajectories. To my knowledge, all cases where verification by other means could be used, the precision cannot be questioned. I believe that also. When orthodox theories can't explain some phenomenon, it is common practice to distrust and finally discard the data as being tainted. Well, after having studied and discarded all other "reasonable" explanations, I suppose that it is the best thing to do. It is one option of course. But in view of the fact that it is the first time in history that we lay hands on Doppler data (that in all other cases proved trustworthy) from small bodies sent on hyperbolic escape trajectories, I lean rather towards thinking that our theories simply need a long overdue final shake down to integrate and explain coherently this behavior in light of all that we now know. Mine has not been contradicted yet except by you that has not fully understood it, (my fault). But anyway, thanks again. Maybe I understood your view. Carlos L. André Michaud |
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(Andr? Michaud) wrote in message ...
(Carlos L) wrote in message ... Thanks André for having looked and for your comments about my non-orthodox explanation that was posted in the thread "Pioneer Anomaly" URL: http:// oogle.com Here is my comment. It is pretty well established without any doubt that the speed of light of photons is invariant in vacuum and completely independant of the velocity of the source, which is precisely why Doppler ranging can be used at all. I know "that" and I believe it is true. Unfortunately everybody finds difficult to understand my (very simple) interpretation of the constancy of the speed of light in vacuum. (It must be that I don't explain myself clearly enough). I try again: I do believe that the speed of light is independent of the speed of the source. But I believe that the speed of light in vacuum is always c *relative to the physical apparatus* that detects it. The speed of light will also be c relative to the reference frame of description if the detector is at rest in it (as is generally the case). But since SR does not dare forbid to use detectors that move relative to the reference frame of description, I assume that in these cases the speed of light will no longer be c relative to the frame of description (until some experiment, in vacuum, proves me wrong). An implication of such interpretation is that since "all" detectors, whatever their speed relative to the source, are known to receive light from moving sources it must be assumed that a typical source emits light-type disturbance at a continuum of speeds. (I don't want to discuss in this thread the details of the *other* implications or problems with this idea). My hope here was to find some reader able to believe in the possibility that such idea is compatible with the experimental facts and be willing to discuss my interpretation of the Pioneers anomalies. As for the doppler data, if it were not to be trusted in this case, this would make this case the only one on record where Doppler data would be found not to be totally precise. I also believe that this case (of the Pioneers) is indeed the first in which the Doppler data do not agree with the expected position of a body governed by the very trustable celestial mechanics laws. But this is a special case because, for the Pioneers: (1) the position (as a function of time, therefore including velocity, acceleration, ...) is (supposedly) known with enormous precision and the experimenter is not allowed to say "the disagreement with our Doppler data must be due to our imprecise knowledge of their position". (2) the velocities of the observed bodies (the Pioneers) have a "big" component v along the line of sight, and according to my interpretation, the effect is proportional to such component. That is not the case for the moon that is AFAIK the only other celestial body whose position is known with such precision. To my knowledge, all cases where verification by other means could be used, the precision cannot be questioned. I believe that also. When orthodox theories can't explain some phenomenon, it is common practice to distrust and finally discard the data as being tainted. Well, after having studied and discarded all other "reasonable" explanations, I suppose that it is the best thing to do. Mine has not been considered yet except by you that has not fully understood it, (my fault). But anyway, thanks again. Carlos L. Nothin new under the Sun. André Michaud |
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(Andr? Michaud) wrote in message . com...
(Carlos L) wrote in message . com... (Andr? Michaud) wrote in message ... (Carlos L) wrote in message ... Note: I posted this 5 days ago but since that post has not appeared I remove the follow_ups to sci.physics.research and sci.astro research and I post it again (because I don't want to leave the impression that I've been convinced that my ideas on this issue have been proven wrong). Oops. The post has just appeared in sci.physics.research and sci.astro.research and has been repeated here. I perhaps should have waited a bit more. These monitored forums are reserved for discussions on currently accepted orthogox theories and ideas that can be directly related to them. No other ideas will be discussed. It used to be like that, but it seems that in the last months their moderators are allowing for less orthodox issues to be discussed. Anyhow, I prefer to omit the follow-ups to moderated groups when discussing non orthodox ideas at a qualitative level. [...] I do believe that the speed of light is independent of the speed of the source. But I believe that the speed of light in vacuum is always c *relative to the physical apparatus* that detects it. Isn't that somewhat contradictory with what you say in the previous sentence? It isn't contradictory if we imagine that an emission is like an explosion in which we can find fragments of many different speeds and we imagine that a detector catches only the fragments of speed c relative to it (e.g. acts like those speed selectors used in some experiments that let through only the particles of a given speed). From what you say below I guess that you actually admit the consistency of this idea (even if you don't like it). You do imply here that velocity c of EM energy, although independent of the source (which implies that c may be an absolute velocity for EM energy in vacuum), would not be independent of the velocity of a physical apparatus that would detect it. Yes That's what brought my comment. If c were an absolute velocity in vacuum for EM energy, it seems to me not to be reconcilable with the idea that it could at the same time be relative to an apparatus that may itself have a velocity. I would agree if said apparatus could be immobilized with respect to vacuum, but how could this be achieved? Aren't we confronted here whith the age old lack (or perceived lack) of an absolute reference with respect to which such zero velocity could be achieved in vacuum? You seem to be thinking, like Einstein, of an aether that can not be assigned a specific state of movement since it must be at rest relative to all observers. That is not the only possibility as I am explaining. The speed of light will also be c relative to the reference frame of description if the detector is at rest in it (as is generally the case). But since SR does not dare forbid to use detectors that move relative to the reference frame of description, I assume that in these cases the speed of light will no longer be c relative to the frame of description (until some experiment, in vacuum, proves me wrong). I see your point, but ref to my interrogation above. An implication of such interpretation is that since "all" detectors, whatever their speed relative to the source, are known to receive light from moving sources it must be assumed that a typical source emits light-type disturbance at a continuum of speeds. Your postulate seems to imply this of course, but I personally lean towards concluding, from all experimental evidence that I considered, that c would be an absolute velocity in vacuum, unless experiments could show otherwise. I'm glad to hear that you are open to consider the possibility that "experiments could show otherwise". Nobody (in mainstream Physics) seems open to accept that possibility. In spite of the claims that SR has been confirmed by "all" sorts of different experiments there still exist some type of experiments that have never been done. e.g. I sketched one in an old post of the thread "Three questions" of URL: http://groups.google.com/groups?selm...ws.bcn.ttd.net (I don't want to discuss in this thread the details of the *other* implications or problems with this idea). [...] I would be willing to discuss but I must say that I have been convinced for long time that velocity of EM energy is invariant in vacuum and not relative to any source or observer. Thanks. [...] Consider that both Pioneers are the first small bodies that have been sent on hyperbolic escape trajectories from the Solar system with us receiving EM signals from them for quite a while. This is the first data available for small bodies on such trajectories. I am not that surprised that our physics theories (classical as well as relativistic) may not be able to predict with precision observed behaviour that could be observed only in such cases and that had not been observed before. But this is a special case because, for the Pioneers: (1) the position (as a function of time, therefore including velocity, acceleration, ...) is (supposedly) known with enormous precision As I said, according to the state of our theories, which are based on the only data that was available previously. and the experimenter is not allowed to say "the disagreement with our Doppler data must be due to our imprecise knowledge of their position". If the Doppler data is ok, then I say our theories simply need to be reconsidered in light of this new data on top of all previously verified data. I believe that what is happening is that the *interpretation* of the Doppler data is *not* ok, not because of a deficient experimental handling of the data but because of more fundamental reasons. (2) the velocities of the observed bodies (the Pioneers) have a "big" component v along the line of sight, and according to my interpretation, the effect is proportional to such component. Yes, making the Doppler data all the more significant in my view, almost "ideally" significant. Significant yes, but not necessarily reliable if the data are wrongly interpreted (by the mainstream theory). [...] ... But in view of the fact that it is the first time in history that we lay hands on Doppler data (that in all other cases proved trustworthy) from small bodies sent on hyperbolic escape trajectories, I lean rather towards thinking that our theories simply need a long overdue final shake down to integrate and explain coherently this behavior in light of all that we now know. I think that our theories do indeed need a shake, but a big one. [...] Best regards Carlos L Carlos L. André Michaud |
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