http://www.einstein-online.info/spot...t_white_dwarfs
Albert Einstein Institute: "One of the three classical tests for general relativity is the gravitational redshift of light or other forms of electromagnetic radiation. However, in contrast to the other two tests - the gravitational deflection of light and the relativistic perihelion shift -, you do not need general relativity to derive the correct prediction for the gravitational redshift. A combination of Newtonian gravity, a particle theory of light, and the weak equivalence principle (gravitating mass equals inertial mass) suffices. (...) The gravitational redshift was first measured on earth in 1960-65 by Pound, Rebka, and Snider at Harvard University..."

Is this a refutation of Einstein's relativity? The top of a tower of height h emits light downwards. According to Newton's emission theory of light, as this light reaches the observer on the ground, its speed relative to him is:

c' = c(1+gh/c^2)

Pound and Rebka showed that the observer on the ground measures the frequency to be:

f' = c'/L = f(1+gh/c^2)

where f is the initial frequency (as measured by the emitter) and L is the wavelength.

Clearly the equation c'=c(1+gh/c^2) given by the emission theory is consistent with the equation f'=f(1+gh/c^2) confirmed by the Pound-Rebka experiment.

On the other hand, the equations c'=c(1+2gh/c^2) given by general relativity and c'=c taught by today's Einsteinians are obviously inconsistent with f'=f(1+gh/c^2). Einstein's relativity is refuted.

Pentcho Valev