A cesium atom in an atomic clock beats over nine billion times a second.
Reveal answer
Fill a bubble to check yourself
Keep practicing — related questions
- Each day is longer than the previous one by 0.00000002 seconds which is 13 seconds each century!
- A radioactive atom's half life
- Clocks made before 1687 had only one hand , the hour hand
- Sound travels fifteen times faster through steel than through air.
- Hamilton releases the "Pulsar", the first electronic digital watch.
- A 'jiffy' is an actual unit of time.
- A 'jiffy' is an actual unit of time.
- In 32 years, there are about 1 billion seconds