Atomic clocks are in Federal Office of Metrology-Bern-Switzerland, National Physical Laboratory-Teddington-London-United Kingdom and at National Metrology Centre-Singapore. Atomic clocks are also in other countries as well.
The atomic clock is a device that uses electronic signals to tell precisely what time it is. Atomic clocks are the most accurate in the world and the U.S. atomic clock is the one used by the Defense Department.
Ammonia clock invented in 1948 by US National Bureau of Standards.
Atomic Clock - album - was created in 2010.
The Atomic Clock was invented in 1949, and is still used today.
Atomic clock is faster than mechanical clock and it is the most accurate of all clocks in the world.
Greenwich, England all US atomic clocks sync with it
One type of atomic clock uses Rubidium.
shutting off alarm on barolo atomic clock
How do you set the time on a S10/Scan atomic clock model 86715
form_title= Outdoor Atomic Clock form_header= Know the time, temperature and humidity all at once! What size do you want the clock?*= _ [50] What color and design do you want the clock?*= _ [50] Are you replacing an old atomic clock?*= () Yes () No
The atomic clock
The ammonia clock was the first atomic clock invented by the US National Bureau of Standards in 1948 that measured the speed of the vibrations of nitrogen atom in ammonia molecule.
http://www.lacrossetechnology.com/8117it/manual.pdf This has the instructions for your atomic clock.