✉news ScienceScience first seen 14 h ago, last 51 min ago, peak #12
Physicists unveil the most accurate atomic clock ever built
Original: Physicists unveil the most accurate atomic clock ever — and it could literally redefine the second
Physicists have announced the most accurate atomic clock ever created, a device so precise it could prompt a redefinition of the second itself. The breakthrough pushes timekeeping beyond the limits of the current caesium standard, opening the door to more exact navigation, fundamental physics tests and a future redefinition of the SI unit of time based on optical clocks.
Why now: The announcement of a record-breaking clock that could change the official definition of the second is a major scientific milestone attracting wide coverage.
atomic clockphysiciststhe second (SI unit)
Evidence
- Physicists unveil the most accurate atomic clock ever — and it could literally redefine the second · Live Science
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