+/- 0.00001 second per day

  •  June 5th 2019, 12:15-12:45

ON THE STROKE OF MIDDAY !

 +/- 0.00001 second per day

After the creation, in 1949, of clocks based on an NH3 ammonia molecule resonance, the caesium atom was used from 1955 as an oscillator in atomic clocks. Guided tour led by a member of the Time and Frequency Laboratory at the University of Neuchâtel (UniNE).