With access to a 10-MHz timebase from a cesium fountain atomic clock — no less a clock than the one that’s used to define the SI second, by the way — [Daniel] looked for ways to sync the ...

All the schematics and code are available, should you fancy your hand at building your own version of the clock. If you are curious about the real-life clock here’s an image. But you get a much ...

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 ...

The satellites that make the GPS in your car and smartphone work consist of many atomic clocks. About 400 such atomic clocks are currently operational, providing real-time locations that are ...