"B Gilmour" wrote in message
...
There is a simple thought experiment posted at the following, which
suggests
that there may be a gravitational component to cosmological redshift which
only becomes significant at extreme QSO distances.
Ideas as to why it is incorrect would be appreciated.

http://home.i-zoom.net/~wgilmour/Redshift.html

For those of you who have read the page.

1] would you agree that a photon will be redshifted upon traveling from the
center ot the earth.
[of course it will be yes]
2] would you agree we should be able to vary both variables to any value we
want and redshift should still be observed. [variables being, -density of
medium, and radius]
[ the answer should be yes]
3] would you maintain that the redshift somehow disappears when these
two variables reach Pc (critical density) and the radius of the visible
horizon, but would still be there just prior to these values.