Physicists have for the first time recorded periodic changes in the flow of time on Earth under the influence of the Moon and the Sun
An international group of metrologists linked Europe's optical clocks into a network via 800 km of fiber-optic lines and, for the first time, measured not static but periodic fluctuations of the gravitational potential caused by the tidal influence of the Moon and the Sun. The results have been published on arXiv.
Aziz Karimov