So you agree that clocks going slower (less ticks) in a gravitational field is nonsense? Ah, this is a subtle and important point! Let’s...

The curvature of light rays due to a varying index of refraction is also responsible for the curvature of geodesics because the...

Gravitational Time Dilation vs Doppler Effect The temporal part of the relativistic indefinite metric is d\tau^2=(1-2GM/c^2r)dt^2 which...