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A short Relativistic Enigma
On May 3, 8:50 am, hippolyte Lapoyat wrote:
Most of the people know that Sir Eddington made a measurement of the deflection of light by the sun in 1919. Very few people know that a friend of him, walking on the sun made a measurement , with the same light ray, from the same star, at the same minute. What is the value of the light deflection his friend have found? The photon deflection experiment must be performed with observations of at least two stars, and the observations must be conducted in two different time incidences. Only by comparing the relative positions of the two stars in two such observations, the deflected angle can be determined. In Eddington’s case, the instances were observed at exactly 6 months apart where the “night” side measurement is not subject to sun’s deflection. By comparing the “day” side observation to the “night” side observation (undistorted), Eddington was able to determine the angle of deflection. However, he lacked accurate and precision measuring equipment to perform such task. His observations were bogus, but this is beside the point. In your case, you don’t have such luxury of finding a known undistorted observation. In every measurement, at least one of the two stars will be deflected by the same amount. Thus, you cannot determine the angle of photon deflection at all. shrug |
#2
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A short Relativistic Enigma
On May 5, 4:36*pm, Koobee Wublee wrote:
On May 3, 8:50 am, hippolyte Lapoyat wrote: Most of the people know that Sir Eddington made a measurement of the deflection of light by the sun in 1919. Very few people know that a friend of him, walking on the sun made *a measurement , with the same light ray, from the same star, at the same minute. What is the value of the light deflection his friend have found? The photon deflection experiment must be performed with observations of at least two stars, and the observations must be conducted in two different time incidences. *Only by comparing the relative positions of the two stars in two such observations, the deflected angle can be determined. In Eddington’s case, the instances were observed at exactly 6 months apart where the “night” side measurement is not subject to sun’s deflection. *By comparing the “day” side observation to the “night” side observation (undistorted), Eddington was able to determine the angle of deflection. *However, he lacked accurate and precision measuring equipment to perform such task. *His observations were bogus, but this is beside the point. In your case, you don’t have such luxury of finding a known undistorted observation. *In every measurement, at least one of the two stars will be deflected by the same amount. *Thus, you cannot determine the angle of photon deflection at all. *shrug Well, if you take the advantage of the sun’s rotation, you can locate a star which is not deflected. The situation occurs when the star, you, and the center of the sun form into a straight line. By comparing this non-deflected star with two other deflected ones, you might be able to determine the angle of deflection after comparing to at least one more observation. shrug |
#3
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A short Relativistic Enigma
Y, I'm not replying to your ejaculation ...
nor is this a spermbank. hypothetically, the regime diametrically opposite of the sunfacing node (say, on the surface of Eaaarth) would have some sort of conjugate effect upon "rays" of light, even though that is nothing but geometrical optics, not part of a theory of light. I mean, the air is too thin to beathe, out there in either direction, but you can try it! |
#4
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A short Relativistic Enigma
I suggest to compare our thought experiment with the Shapiro
experiment About the Shapiro effect, Wikipedia says: In a near-static gravitational field of moderate strength (say, of stars and planets, but not one of a black hole or close binary system of neutron stars) the effect may be considered as a special case of gravitational time dilation. The speed of light in meters per given interval of "local time" (calculated by the metric tensor) is a constant, however the travel time of any electromagnetic wave, or signal, moving at 299,792,458 meters per "second" is affected by the time dilation in regions of the space through which it travels. This is because the coordinate time and locally calculated time diverge as the gravitational field potential increases (by absolute value). Shapiro effect is related to the time delay due to light traveling around a single mass. However, we can imagine that the Shapiro experiment is also used to study the light deflection. For the reasons above, time dilation is the main factor for curving the light ray. If you look at the web site “newton-einstein.com”, you will be convinced that in such circumstances (low gravitation- limited time dilation) SR and GR are merged into the Newton mechanics. I am inclined to conclude that Eddington’s friend has found a angle of light deflection compatible with the newtonnian calculus i.e: Half the value supposed to be measured by Eddington. |
#5
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A short Relativistic Enigma
On May 6, 12:48 am, hippolyte Lapoyat wrote:
On May 5, Koobee Wublee wrote: The photon deflection experiment must be performed with observations of at least two stars, and the observations must be conducted in two different time incidences. Only by comparing the relative positions of the two stars in two such observations, the deflected angle can be determined. In Eddington’s case, the instances were observed at exactly 6 months apart where the “night” side measurement is not subject to sun’s deflection. By comparing the “day” side observation to the “night” side observation (undistorted), Eddington was able to determine the angle of deflection. However, he lacked accurate and precision measuring equipment to perform such task. His observations were bogus, but this is beside the point. In your case, you don’t have such luxury of finding a known undistorted observation. In every measurement, at least one of the two stars will be deflected by the same amount. Thus, you cannot determine the angle of photon deflection at all. shrug Well, if you take the advantage of the sun’s rotation, you can locate a star which is not deflected. The situation occurs when the star, you, and the center of the sun form into a straight line. By comparing this non-deflected star with two other deflected ones, you might be able to determine the angle of deflection after comparing to at least one more observation. shrug Shapiro effect is related to the time delay due to light traveling around a single mass. However, we can imagine that the Shapiro experiment is also used to study the light deflection. For the reasons above, time dilation is the main factor for curving the light ray. Gravitational delay should not be confused with gravitational deflection. shrug If you look at the web site “newton-einstein.com”, you will be convinced that in such circumstances (low gravitation- limited time dilation) SR and GR are merged into the Newton mechanics. Under pre-electromagnetism Newtonian mechanics, light particles can be deflected by the sun’s gravity with the following effects: ** The deflection will result in a slightly longer path for the light particle. ** Gravity will also cause a light corpuscle to increase speed during inbound but decrease speed during outbound. Say each contributes to one nibble of gravitational delay. The total expected gravitational delay in this model is just 1 nibble. Under Maxwellian electromagnetism, light particles can be deflected by the sun’s gravity as well where the Aether forms a gravitational lens that deflects light just like a prism would but with the following effects. ** The deflection will result in a slightly longer path for the light particle. ** Gravity will also cause the propagation of light to slow down. The total expected gravitational delay in this model is 2 nibbles. Under the Schwarzschild metric under GR, a photon can be deflected with the following effects: ** The deflection will result in a slightly longer path for the light particle but with twice the Newtonian prediction. So we have 2 nibbles here. ** Gravitational time dilation will cause light to slow down. This effect contributes to only 1 nibble. Adding up to all these effects, one would expect the gravitational delay under GR to be 3 nibbles. What did Shapiro have? 2 nibbles of gravitational delay. Only Maxwellian electromagnetism passes Shapiro. shrug |
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