Redefining the second is a big project. This is one crucial step towards accomplishing that goal.
The intricate system working to make your New Year’s Eve a little longer
Time for an upgrade
Scientists think optical clocks are ready to replace the atomic clock as the standard
Such a location system would work underwater and indoors.
And they're about 10 billion times more precise than your quartz wristwatch.
The clock monitors how close we are to doomsday, as decided by the heads of The Bulletin of Atomic Scientists.
Atomic clocks are the most accurate timekeepers in the world, but a “nuclear clock” would be even better. An international...
Unless you’re disputing the world record in the 100-meter dash or a buzzer-beater in basketball, a single second is generally...
The slightest whisper of warmth induces miscalculations in the world’s most precise atomic clock, researchers say. Accounting for this effect...
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