The pendulum of this mid-century beauty is made of the alloy ... 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 ...

Finally, in the 20th Century, the first quartz clocks were invented, making way for atomic time. How do atomic clocks work? Clocks use oscillators to keep time. These devices have periodic ...

Inside the National Institute of Standards and Technology, or NIST, a new atomic clock named ... of fountain clocks developed by NIST over the past quarter century. The agency’s first fountain ...

WASHINGTON — Atomic scientists on Tuesday kept their “Doomsday Clock” set as close to midnight as ever before, citing Russia’s actions on nuclear weapons amid its invasion of Ukraine ...

Clocks on Earth are ticking a bit more regularly thanks to NIST-F4, a new atomic clock at the National Institute of Standards and Technology (NIST) campus in Boulder, Colorado. This month ...

Such a device would greatly surpass the capabilities of atomic clocks, which define the span of a second through controlled energy jumps in atoms’ electrons and are currently the pinnacle of ...

While the first atomic clock was invented in 1949, no nuclear clock has yet been feasible. The simple reason is that it takes much more energy to excite a nucleus into a higher energy state than ...

WASHINGTON, Jan 23 (Reuters) - Atomic scientists on Tuesday kept their "Doomsday Clock" set as close to midnight as ever before, citing Russia's actions on nuclear weapons amid its invasion of ...