Tag Archives: caesium fountain clock

Atomic clock with world\’s best long-term accuracy revealed by research

A caesium fountain clock that keeps the United Kingdom\’s atomic time is now the most accurate long-term timekeeper in the world, according to a new evaluation of the clock that will be published in the October 2011 issue of the international scientific journal Metrologia by a team of physicists at the National Physical Laboratory (NPL) […] … learn more→