Fri Feb 15, 3:59 PM ET
U.S. Physicists have made a Clock so accurate it will neither gain nor lose even a second in more than 200 million years, a finding sure to please even the most punctually minded.
The clock, described in the Friday issue of the journal Science, outperforms the official atomic clock used by the U.S. Commerce Department's National Institute of Standards and Technology, which promises to keep accurate Time down to the Second for 80 million years.
The new atomic clock is vying for the Title of world's most accurate with another experimental clock developed in the same lab at the Joint Institute for Laboratory Astrophysics, a collaboration between NIST and the University of Colorado in Boulder.
"These clocks are improving so rapidly that it is impossible to tell which one will be the best," said Tom 0'Brian, head of the time and frequency division at nist.