Noun
a timepiece that derives its time scale from the vibration of atoms or molecules
Source: WordNetMost technological advances in our life now come from serendipitous discoveries. That is a contraction of rocket technology and computer technology and atomic clock technology. Serge Haroche
A caesium standard or caesium atomic clock is a primary frequency standard in which electronic transitions between the two hyperfine ground states of caesium-133 atoms are used to control the output frequency. Source: Internet
All four were recognized for their work related to laser cooling of atoms, which is directly related to the development and advancement of the atomic clock. Source: Internet
Applications FOCS 1, a caesium atomic clock in Switzerland Lithium, sodium, and potassium have many applications, while rubidium and caesium are very useful in academic contexts but do not have many applications yet. Source: Internet
Coordination of International Atomic Time With the advent of the atomic clock it has been possible to define and measure International Atomic Time with sufficient precision that variations in the Earth's rotation can be detected. Source: Internet
Increasingly, after the calibration in 1958 of the cesium atomic clock by reference to ephemeris time, cesium atomic clocks running on the basis of ephemeris seconds began to be used and kept in step with ephemeris time. Source: Internet