Re: Feynman's Light Clock

On 2025-05-04 18:42:33 +0000, LaurenceClarkCrossen said:

Feynman thought that time ran faster in higher gravity because his light
clock in a rocket ship ran faster the faster it accelerated. The light
flashes bounced from end to end.

Actual experiments have shown that the prediction was correct.

Relativists now will say that atomic clocks are better than light
clocks, so we can judge by them.

They are better for practical purposes such as the definition of
the meaning of a measurement of time.

The clock's rate is only one process, so it cannot be equated to the
rate of time.

One of those processes can be equated to meaning of the measurement
of time. The expression "the rate of time" can be left without
meaning because it is not that important.
--
Mikko