It still seems to be an unresolved question as to whether the Einstein equivalence principle is satisfied in the comparison between a charge supported in a uniform gravitational field and a charge fixed in a uniformly accelerated reference frame.

Anatoly Logunov has set out a relativistic theory of gravity that is not the same as the orthodoxy of the "general theory of relativity". What do we make of this?

The pendulum clock is affected by gravity and by its size. The fountain atomic clock is not affected locally by acceleration, so far as I can see. Is that proof that gravity does not affect it? What about Fokker's spherical light clock? What about other clocks? The effect of gravity on a clock may depend on the angle between the acceleration and the velocity?