topicmaker Veteran


Joined: 28 Feb 2006 Posts: 25653
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Posted: Mon Feb 18, 2008 10:59 am Post subject: Atomic clock accurates to second in 200-plus million years! |
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US physicists have made
an atomic clock that is so accurate it will neither gain nor lose a second
over the next 200 million years. The clock outperforms the official atomic clock
used by the U.S. Commerce Department's National Institute of Standards and
Technology (NIST), which promises to keep accurate time down to t...read more |
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