This book provides a comprehensive introduction to the physics of time and time measurement, from an historical perspective to the modern day. It discusses the stability and accuracy of atomic ...

Atomic clocks use the oscillations of atoms as timekeeping ‘pendulums’ – which, like grandfather clocks, involve weights suspended from a pivot, the swing of which defines time. When ...

Scientists are developing nuclear clocks using thin films of thorium tetrafluoride, which could revolutionize precision ...

Telling time in space is difficult, but it is absolutely critical for applications ranging from testing relativity to ...

The Doomsday Clock, a symbolic timepiece that warns of a catastrophic global event, is ticking closer to midnight than ever ...

That was back in 2001, when he and his colleague Christian Tamm proposed a device with the potential to be even more precise and portable than the world’s best atomic clocks. Peik’s estimate ...

The Bulletin of Atomic Scientists, a Chicago-based group, updates the clock yearly, keeping tabs on existential threats ...

The Department of Defense has awarded quantum technology firm Infleqtion an $11 million contract to help it speed up the ...

In the quest for ultra-precise timekeeping, scientists have turned to nuclear clocks. Unlike optical atomic clocks—which rely ...

Atomic clocks that excite the nucleus of thorium-229 embedded in a transparent crystal when hit by a laser beam could yield the most accurate measurements ever of time and gravity, and even rewrite ...

Atomic clocks that excite the nucleus of thorium-229 embedded in a transparent crystal when hit by a laser beam could yield the most accurate measurements ever of time and gravity, and even ...