Atomic clocks are an order of magnitude more precise than even the best temperature controlled crystal oscillators. Bill Hammack has a great video describing the operation of a cesium beam oscillator.

So steady are these oscillations that atomic clocks keep better time than the spinning earth itself The "pendulums" which regulate them are the vibrating parts of atoms or molecules.

Plus, it allows one of the microcomb’s frequencies to be locked to a laser, which is then locked to the atomic clock’s oscillation. This creates a stable reference that can be used for precise ...

By measuring the tiny shifts of oscillation frequency in these ultra precise clocks, researchers are able to explore the influences of Einstein's theory of relativity on quantum systems.

One long-standing model of the rodent circadian clock describes it as a complex pacemaker consisting of two mutually coupled oscillators differentially affected by light, with one synchronized to ...

An optical lattice clock is a type of atomic clock that uses the frequency of atomic oscillation to measure advancement of time. A myriad of atoms are confined inside Katori's specially designed ...

En-route to nuclear clocks, researchers have found a resonant mode in thorium atom nuclei with a low temperature coefficient - nuclear oscillators are ...