Ion Clock Laser 3 (Photo James Burrus)
A Walk Through Time –
The Evolution of Time Measurement through the Ages
James Burrus, Public
Information and Outreach Coordinator, National Institute of Standards and Technology,
Boulder
Explore the history of time and timekeeping with James
Burrus of the National Institute of Standards and Technology (NIST). NIST
develops standards for timekeeping and creates revolutionary technology,
including an atomic clock the size of a grain of rice! The NIST-F1 atomic clock
(the U.S. national standard for time and frequency) counts the natural
vibrations in cesium atoms so accurately… it will neither gain nor lose a
second in over 100 million years!
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