Show Naval Observatory Clocks Are re Tops To the most of us seconds and minutes have very little importance For that reason it is hard for us to realize the exquisite exactness wit with which the government tries to mark the passing of every second of time The clocks in the Naval Observatory Observatory tory are the most accurate in th the j 1 l 1 world and special pains are taken to see that they remain so at a all times The standard clocks keep mean meantime meantime time which is the division of th the days into hours minutes and sec sec- Regulation of the clocks is s so exacting that the daily rate meaning meaning meaning mean mean- ing loss or gain is so small that it itcan itcan can not be measured The clocks are regulated by coincidence coincidence coin coin- of the bea beats with a sidereal sounder The clocks beat ceat so silently that microphones must be used t to magnify the beats in order that they might be heard at all |