NIST-F1 Cesium Fountain Atomic Clock
By Mary Bellis, About.com Guide
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Naval Atomic Clock
Two visitors look at the atomic clock timescale at the U.S. Naval Observatory in Washington D.C.
Getty Images/Michael Smith
Visitors look at the atomic clock timescale at the U.S. Naval Observatory in Washington D.C. By a Department of Defense directive, the U.S. Naval Observatory is charged with maintaining the DoD reference standard for Precise Time and Time Interval.
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- NIST-F1 Cesium Fountain Atomic Clock
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- How an Atomic Clock Works
- How an Atomic Clock Works Part Two
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