Because the theistic evolution thread could easily be 'hijacked' by UTE's argument with Barry about galaxy rotation and Barry's work, I'm starting what I intend to be a VERY short thread with Barry's response here: In reply to UTE's assertions, let me refer once again to equations 125 and 126. If we neglect the higher order terms which come in as a result of the relativistic treatment, we are left with an equation that reads f* = f + v/L where v is the velocity of rotation and L is the wavelength of the emitted light, both of which are unaffected by any changes in the speed of light. So the v/L term remains constant throughout. UTE's problem then comes with the identification of f on the right hand side of the equation, remembering that f* is the OBSERVED frequency (from earth). UTE is saying that f on the right hand side of the equation should be 1000 fold higher if the speed of light were 1000 times greater. At the point of emission, this might be true. However, in transit, that f changes as the speed of light changes, in direct proportion, so that that f, at the moment of reception, is the same as the spectral line f in our laboratories. Therefore, since f is the same as our current value of f, and v/L is unchanged as the speed of light changes, this means that we are measuring v at the point of reception as being the same as the v at the moment of emission.