An international team of researchers has, for the first time, coupled an atomic nucleus to an atomic clock to compare differences in their timekeeping frequencies.… The breakthrough promises to ...

On a campus in Boulder, Colorado, time just became a little more exact. Inside the National Institute of Standards and Technology, or NIST, a new atomic clock named NIST-F4 has begun to tick ...

In an optical atomic clock, atoms are irradiated by laser light. If the laser has the correct frequency, the atoms change their quantum-mechanical state. For this purpose, ...

For more about Holly's Optical Atomic Strontium Ion Clock, check out the OASIC project on NASA's website.- For more about the Longitude Problem, check out Dava Sobel's book, Longitude.

A powerful laser generates ultraviolet light as it shines into a jet of gas. For a nuclear clock to work in a new study, scientists used UV light to excite nuclear particles in an atom of thorium-229.

A new atomic clock is one of the world’s best timekeepers, researchers say — and after years of development, the “fountain”-style clock is now in use helping keep official U.S. time. Known ...

Atomic scientists moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine and other factors underlying the risks of global ...

Just follow the instructions in the app. Alternatively, the DCF77 emulator app might also work, in case the clock is multifrequency capable. Report comment Reply ...

If an atomic clock fell out of sync with a nuclear clock, for example, some change in the underlying physics might be responsible. Only time will tell. Curious about the world?

A clock network would allow geodesists to compare the ticking of clocks all over the world. They could then use the variations in time to map Earth’s gravitational field much more precisely, and ...