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New atomic clock is most precise yet

Next test is whether the timepiece can translate precision into long-term accuracy

atomic clock

GRID’S GOT RHYTHM  The world’s most precise timepiece consists of strontium atoms in a grid, ticking off oscillations of laser light trillions of times per second.

The Ye group and Steve Burrows/JILA

By Maria Temming

- More than 2 years ago

A new model of atomic clock is now the world’s steadiest metronome, with a tick rate about six times more precise than the previous record-holder.