Scanned by: h.seldonover 5 years ago
Called the NIST-F1, this atomic clock is more accurate for prolonged periods than any other clock -- an order of magnitude better than the one it replaced in 1999. When the F2 down the hall goes online next year, it will similarly dwarf the F1.
"We basically have a Moore's Law in clocks," says Tom O'Brian, chief of the Time and Frequency Division of the National Institute of Standards and Technology, or NIST. "They improve by a factor of 10 every decade."