https://www.nasa.gov/image-article/einsteins-theory-of-relativity-critical-gps-seen-distant-stars/
First, the analogy with a person running up an escalator that is going down and the energy thereof is explained by newtonian physics and has nothing to do with general relativity. The analogy...
An introduction to Refractional redshift, and how it was confused with gravitational redshift
Marius L. Vasile @ Vasile effect
In this article I will prove that refraction causes a redshift, which I cleverly named Refractional redshift, and that this redshift was not so cleverly confused with...