Episode 65: Causality, Time and the Experiment Paradox with Michal Eckstein
Physics Frontiers
00:00
The Second Clock Effect
Paul GR is a metric theory. The difference between the bi-structure and the metric structure is sometimes called the second clock effect. This again is something that can be violated in some modified gravity theories, not in GR. And it is being done as far as I know there are some bounds on how large can it be.
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