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Topic:
GEOMETRIZED GRAVITY: THE FUNDAMENTAL RED HERRING IN EINSTEINIANA
Replies:
3
Last Post:
Jun 19, 2013 8:12 PM




Re: GEOMETRIZED GRAVITY: THE FUNDAMENTAL RED HERRING IN EINSTEINIANA
Posted:
Jun 12, 2013 12:05 PM


A javelin graduated in centimeters is thrown downwards from the top of a tower of height h. Initially the centimeter marks pass an observer at the top of the tower with frequency f, speed s and "wavelength" L (1cm):
f = s/L
What are the frequency f', speed s' and "wavelength" L' as measured by an observer on the ground? Newton's theory gives a straightforward answer (it is assumed that s>>s's):
f' = f(1+gh/s^2) = (s+v)/L s' = s(1+gh/s^2) = s+v L' = L
where v=s's is the increase in speed.
Then the observer at the top of the tower emits light towards the ground. Relative to this observer, the light has frequency f, speed c and wavelength L:
f = c/L
What are the frequency f', speed c' and wavelength L' as measured by an observer on the ground? Newton's emission theory of light gives a straightforward answer again:
f' = f(1+gh/c^2) = (c+v)/L c' = c(1+gh/c^2) = c+v L' = L
where v=c'c is the increase in speed. The PoundRebka experiment confirmed the predictions of Newton's emission theory of light:
http://www.einsteinonline.info/spotlights/redshift_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 196065 by Pound, Rebka, and Snider at Harvard University..."
Pentcho Valev



