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Originally posted by Phage
reply to post by bigfatfurrytexan
A brief but way too interesting aside to pass up.
The only observer who doesn't see the distortion is the one within the bent frame of reference. All outside observers see the longer path no matter what their perspective is.
But that does bring up an interesting exception. If the distortion lies in a single plane and an observation directly along the plane perpendicular to the distortion is made, would the observer see a straight path? It seems that for that observer, light would appear to slow down since the curve would not be apparent.
I wonder how that could be tested.
While relativists have always been partial to the curved space-time explanation of gravity, it is not an essential feature of GR. Eddington (1920, p. 109) was already aware of the mostly equivalent “refracting medium” explanation for GR features, which retains Euclidean space and time in the same mathematical formalism. In essence, the bending of light, gravitational redshift, Mercury perihelion advance, and radar time delay can all be consequences of electromagnetic wave motion through an underlying refracting medium that is made denser in proportion to the nearness of a source of gravity. (Van Flandern, 1993, pp. 62-67 and Van Flandern, 1994) And it is now known that even ordinary matter has certain electromagnetic-wave-like characteristics. The principal objection to this conceptually simpler refraction interpretation of GR is that a faster-than-light propagation speed for gravity itself is required. In the context of this paper, that cannot be considered as a fatal objection.
Originally posted by XPLodER
Originally posted by Phage
reply to post by XPLodER
Sorry. No, it isn't.
First you were talking about gravity being lensed (focused) by mass and now about light being lensed by gravity and somehow being accelerated in the process. You are speaking as if light behaves the same way as gravity does.
Mass bends space time which causes light to "bend". Gravity is the result of that bending.
edit on 6/4/2011 by Phage because: (no reason given)
ill try again
lets asume three things first
before eclipse the moon is microlensing the sun
but it is micro lensing the "apparent position" of the sun 8.3 mins ago
as the moon gets closer to full eclipse the microlensing shortens the time for light to go from the sun to the earth,
in this case, with these conditions
the light source changes from "apparent" to "acual" location of the sun
this would present as a jumping of "apparent" position of the earth aginst the micro lense and backround light source
is there such an observation?
edit to ask
is there any lunar eclipse anomoloies with transit time of "appairent" motion or increase/decrease in observed length in transit?
edit on 4-6-2011 by XPLodER because: add extra question for phage
Why do total eclipses of the Sun by the Moon reach maximum eclipse about 40 seconds before the Sun and Moon’s gravitational forces align? How do binary pulsars anticipate each other’s future position, velocity, and acceleration faster than the light time between them would allow? How can black holes have gravity when nothing can get out because escape speed is greater than the speed of light?
Horacio R. Salva*
Centro Atómico Bariloche and Instituto Balseiro, CNEA-UNCuyo-Conicet, Av. Bustillo 9500, (8400) Bariloche, Argentina
Received 28 December 2010; published 16 March 2011
I have measured the precession change of the oscillation plane with an automated Foucault pendulum and found no evidence (within the measurement error) of the Allais effect. The precession speed was registered and, due the variations involved, if the precession speed would changed 0.3 degree per hour (increasing or decreasing the angle of the normal precession speed) during the all eclipse, it would be notice in this measurement.
© 2011 American Physical Society
95.10.Gi, 04.20.Cv, 45.50.Pk
this is the most recent experiment i have found
We conclude on the contrary that it rather confirms that there is an essential and intrinsic
difference between the measures observed during eclipse and those without eclipse [14, 17,
18]. Our interpretation is that both anomalies result from the same phenomenon revealing an
antigravity. The paraconical pendulum, of which the oscillation plane is free to turn all sides
at the same time, seems to indicate that the more the anomaly increases the degree of
oscillating plane (with regard to the plane corresponding to the Foucault effect), the more the
deviated plane escapes the gravitation. The pendulum, and thus the Earth, is ‘lightened’.
Within the framework of the general relativity, the excess of arcseconds would mean that
there is a flatness, or a geodesic more remote from the Sun than the theoretical geodesic.
Scientific history seems to repeat itself.
When the GR predicted for the deflection of starlight just grazing the edge of the Sun an
angular distance of 1,74 arcseconds, two times the Newtonian prediction, the question of the
precise value of the deviation became a matter of principle which had to allow to choose
between both theories. The Relativity took it. Today, the Allais effect and the anomaly of
residual arc during total solar eclipse persuade us that it is not the complete story. The
observed 1,97 arcseconds for the deviation, considered up to here as one of the proofs of the
GR, is the average of the observations done during eight eclipses between 1919 and 1960. But
this number is higher than the number predicts by the calculation and in a proportion superior
to the experimental errors. And, as we tried to demonstrate it, the unexplained arcseconds
excess of these experiments would be in concomitance and in accordance with the abrupt shift
of the plane of oscillation of the Allais pendulum with regard to the plane corresponding to
the effect of Foucault. We do not hesitate to assert that these confirmed experiments and data
question the interpretation of the GR and once more our conception of the Universe.
The Sun happens to be 400 times the Moon's diameter, and 400 times as far away. That coincidence means the Sun and Moon appear to be the same size when viewed from Earth. A total solar eclipse, in which the Moon is between the Earth and Sun, blocks the bright light from the Sun's photosphere, allowing us to see the faint glow from the corona, the Sun's outer atmosphere.