Sun Bending Light: Gravity Warps Space-Time?

[RandallB]

I tried another model: Space is not curved, but light moves faster in one height than in the other (because of time dilatation). . ... .
Is something wrong with my model?

IMO yes there is,
I know of now method of applying a time dilation to only one direction of space to allow light to change speed based on the direction you pick. It will appear to slow down in all directions

Also I don't understand your comment:

Space time curvature component can be easily calculated. I can show and Tiger Space showed (not to zero precision).

What Space Tiger (not Tiger Space) showed was how Newton’s Gravity calls for light to bend simply based on his gravity formulas. You can take a “no-mass” photon, as acting the same as “any small mass” as those formulas results do not depend on the mass of the moving entity. That component cancels out and the Impulse analyses Space Tiger used as far as I can see give a completely exact and precise result; giving one half the answer that GR gives. [In fact this is the same result as Einstein’s 1914 GR prediction, but corrected before publishing in 1916, had they been able to test the 1915 eclipse with his wrong 1914 prediction who knows what would have happened to GR, but the war delayed the test to 1919 after GR was completed in 1916]
What do you mean by “not to zero precision”??

One half of the GR result is defined by a curve caused by classical gravity is understandable. (A curve in space if you like)
What is missing is an explanation for the other half in terms of Time Dilation alone, a curve caused by time dilation alone, not “space-time”.
GR gives the complete “space-time” solution.
This thread attempts to break that into two pieces:
Space Tiger derived the gravity part (IMO with precision).
What is missing is the derivation of a “Special Relativity treatment of Newtonian gravity” to give the other half due to time dilation.

 

[Pgotac]

I thought the classical way of finding the bending of light was by finding the mass of light with whatever debroglies thing is (I forget but I know frequency is in there), and then using that mass to find the gravitational attraction with F = GMm/r^2. and is it rly off by exactly a factor of 2? that seems like a huge coincidence...

Who first calculated bending of light using Newton's Laws? Did he know Debroglie mass?(h/(wavelenght x c). Could someone help?

 

[jtbell]

The calculation of the (Newtonian) gravitational deflection of light was first published by Johann Georg von Soldner in 1801.

http://www.einstein-online.info/en/spotlights/light_deflection/

Note that the Newtonian deflection doesn't depend on the mass of the particle, for the same reason that objects of different masses fall with the same acceleration towards the Earth.

 

[Hal King]

The light should be 'uneffected' -- its the observer's state that determines the answer. How the observer (or the light) got to that state is also not relevant.