If the atomic clock in the University of Colorado Boulders JILA laboratory had been started when the earth came into existence, its time would still be perfect down to the very second today. The laboratorys atomic clock is — perhaps unsurprisingly — said to be the most precise one in the world, and its being unveiled today by a paper in Nature. Ye is a fellow with the National Institute of Standards and Technology (NIST), which runs the JILA lab in partnership with CU Boulder. For NIST, proving that its technology is definitively the best is an ongoing battle.
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