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 ...

Atomic Digital Clock Auto Set (no back light) - Using radio frequencies broadcast from NIST’s Colorado , the clock will automatically set to the correct time. Automatically adjusts to Daylight ...

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 size of this setup makes the optical atomic clock impractical for widespread use in applications like smartphones, satellites, or drones. To solve this challenge, the researchers created tiny ...

The Doomsday Clock is a metaphor that represents how close humanity is to self-destruction, due to nuclear weapons and climate change. The clock hands are set by the Bulletin of the Atomic Scientists, ...