On a large table draped with hundreds of cables, a maze of mirrors and lenses bounces and guides a thin beam of laser light. It culminates at a silvery capsule, which holds 40,000 strontium atoms cooled to within a whisker of absolute zero. This delicate edifice is an optical clock, one of the world’s most […]
The post The epic quest to redefine the second using the world’s best clocks first appeared on News Health.
Author : News Health
Publish date : 2025-04-02 16:00:00
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