Atomic Clocks
Atomic clocks are very precise and have nearly no clock drift. The rotation of the Earth itself actually is less precise than modern atomic clocks used as time standards. Thus to keep the Coordinated Universal Time (UTC) in line with the Earth's rotation, a leap second is added to some years.
Read more about this topic: Clock Drift
Famous quotes containing the words atomic and/or clocks:
“When you see something that is technically sweet, you go ahead and do it and you argue about what to do about it only after you have had your technical success. That is the way it was with the atomic bomb.”
—J. Robert Oppenheimer (1904–1967)
“all the clocks in the city
Began to whirr and chime:
“O let not Time deceive you,
You cannot conquer Time.”
—W.H. (Wystan Hugh)