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Show Naval Observatory Clocks Are Tops To the most of us, second's and minutes have very little importance. For that reason it is hard for us to realize the exquisite exactness with which the government tries to mark the passing of every second of time. The clocks in the Naval Observatory Observa-tory are the most accurate in the world, and special pains are taken to see that they remain so at all times. The standard clocks keep "mean" time, which is the division of the days into hours, minutes and seconds. sec-onds. Regulation of the clocks is so exacting that the daily rate, meaning mean-ing loss or gain, is so small that it can not be measured. The clocks are regulated by coincidence coin-cidence of the beats with a sidereal sounder. The clocks beat so silently that microphones must be used to magnify the beats in order that they might be heard at all. |