As such, optical clocks can Ffxiv Gil keep time to within one second in3.7 bilon years (about as long as fe has been on Earth). Theone at the National Institute of Standards and Technology (NIST) inColorado, for example, is over a hundred times more accurate thanthe caesium-d atomic clock that the United States uses as itsprimary time standard.

The problem is that the clocks are more accurate than thecables, sateltes and radio signals that would transmit the time overa country, and the world. Try and send a signal from one opticalclock to another, and noise from the transmission would distort thetransmission.







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