Hackaday2 年
An Atomic Pendulum Clock Accurate Enough For CERN
That big grandfather clock in the library might be an impressive piece of mechanical ingenuity, and an even better example of fine cabinetry, but we’d expect that the accuracy of a pendulum ...
Hackaday5 年
100 Year Old Atomic Clock
Precision time is ubiquitous today thanks to GPS and WWVB. Even your Macbook or smartphone displays time which is synchronized to the NIST-F1 clock, a cesium fountain atomic clock (aka the ...
Electronic Design3 天
Next-Gen Chip-Scale Atomic Clock: Thin is In, Noise is Out
The size, power, and other metrics of a latest-generation chip-scale atomic clock.
Nature2 年
Possibilities open up in time
In 2001, Japanese physicist Hidetoshi Katori proposed a new type of atomic clock that only loses a second every 30 billion years, a period longer than the current age of the universe. The ...
Gulf News1 个月
World’s most accurate clock goes on sale for $3.3 million
It is about one hundred times more precise than the traditional cesium atomic clocks The device measures time by using the optical transition of atoms confined in standing waves of light.