10 Atomic Clocks Connected Across 6 Countries In Most Ambitious Timekeeping Experiment Ever

In a nutshell Scientists connected 10 ultra-precise atomic clocks across six countries in the largest coordinated timekeeping experiment ever conducted While many clocks agreed to extraordinary precision, the study revealed concerning discrepancies that highlight challenges in global clock synchronization This research is a crucial step toward redefining the international second using optical clocks by 2030, potentially revolutionizing global timekeeping ****************************************************************** EUROPE — Every clock in your house probably tells a slightly different time. Now picture those clocks as the most precise instruments humanity has ever built, so accurate that they wouldn’t lose or gain a second for billions of years....