1990 - Splitting the Second
The Story of Atomic Time.
Did you know .....
- Atomic clocks tick 9 billion times a second and the best keep time to one second in 10 million years ?
- 13 Nobel prizewinners have contributed to the physics of atomic timekeeping ?
- Mean Time remains the legal time for the United Kingdom despite being abandonned for civil timekeeping in 1972 ?