On a campus in Boulder, Colorado, time just became a little more exact. Inside the National Institute of Standards and ...

The European Space Agency (ESA) has launched ACES, or the Atomic Clock Ensemble in Space ... scientific community and will surely play a key role in pushing towards the re-definition of the standard ...

An atomic clock is known to be the most accurate measurement ... See real-time clock and atom. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

We normally think of atomic clocks as the gold standard in timekeeping. The very definition of a second — in modern times, at least — is 9,192,631,770 periods of the radiation corresponding to ...

The optical lattice clock, which carries a price tag of 500 million yen ($3.3 million), is up to 100 times more precise than the cesium atomic clock that is currently used for time definition.

From sundials to atomic clocks, our understanding of time has become a lot more accurate as technological developments allowed us to measure it more precisely. Much more than helping us arrive on ...

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 ...

But that was changed in 1967 to a definition based on energy levels in atoms – the so-called “atomic clock” – as the Earth’s rotation can slow down and speed up depending on movements of ...

At the heart of the mission are two advanced atomic clocks. One is PHARAO (Projet ... surely play a key role in pushing towards the re-definition of the standard unit of time – the so-called ...