The epic quest to redefine the second using the world’s best clocks

The epic quest to redefine the second using the world’s best clocks

A more precise definition of the second is crucial to all sorts of physical measurements – but to get there, scientists have to pack up their extraordinarily fragile optical clocks and take them on tour A more precise definition of the second is crucial to all sorts of physical measurements – but to get there, scientists have to pack up their extraordinarily fragile optical clocks and take them on tour  New Scientist – Home

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