NIST Launches a New U.S. Time Standard: NIST-F2 Atomic Clock
1:55
NIST Launches a New U.S. Time Standard: NIST-F2 Atomic Clock
2014年4月3日
nist.gov
NIST launches a new US time standard: NIST-F2 atomic clock
5:00
NIST launches a new US time standard: NIST-F2 atomic clock
2014年4月3日
phys.orgNational Institute of Standards,Technology
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NIST launches an atomic clock 3 times more accurate than the last
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arstechnica.com
134K views · 2.5K reactions | How do scientists measure a second?  Watch this video to learn more about our new atomic clock, NIST-F4, and how we measure time. | National Institute of Standards and Technology (NIST) | Facebook
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