4 ms·
Atomic clocks can do it: https://www.latimes.com/science/sciencenow/la-sci-sn-atomic-clock-gravity-20180212-story.html https://www.latimes.com/science/scienceno
by hnuser123456 2y ago
Atomic clocks can do it: https://www.latimes.com/science/sciencenow/la-sci-sn-atomic-clock-gravity-20180212-story.html https://www.latimes.com/science/sciencenow/la-sci-sn-atomic-...