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Atomic Clocks So Accurate they Can Measure Signals from Early Universe

News   Nov 29, 2018 | Original Story from the National Institute of Standards and Technology.

 
Atomic Clocks So Accurate they Can Measure Signals from Early Universe

NIST physicist Andrew Ludlow and colleagues achieved new atomic clock performance records in a comparison of two ytterbium optical lattice clocks. Laser systems used in both clocks are visible in the foreground, and the main apparatus for one of the clocks is located behind Ludlow. Credit: Burrus/NIST.

 
 
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