NIST Launches a New U.S. Time Standard: NIST-F2 Atomic Clock

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NIST has officially launched NIST-F2
More Info: http://go.usa.gov/kqbQ.

NIST-F2, a new atomic clock based on a "fountain" of cesium atoms, is now the U.S. civilian time standard. NIST-F2 will neither gain nor lose one second in 300 million years, making it more than twice as accurate as its predecessor, NIST-F1, which was the U.S. civilian time and frequency standard since 1999.

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