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