All Articles Tagged As: caesium fountains
They are at present the most accurate clocks in the world: caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a certain measurement time. This time has now been considerably reduced with the aid of a new method developed at the Physikalisch-Technische Bundesanstalt which makes the output frequency of the caesium fountains more stable.
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