WASHINGTONWASHINGTON — Earth, for the second year running, is nearing apocalypse, a science-oriented advocacy group said, pointing to its famous “Doomsday Clock” that shows 90 seconds till midnight.

Nuclear clocks should be more robust and portable than the best available clocks today because nuclei are hard to perturb and ...

A clock built from thorium-229 has crossed an important line, from a long-discussed concept to a working device. The shift ...

Two teams of physicists have made the world’s first nuclear clocks. These radical new devices use fluctuations in the energy ...

The advantage of a radio-controlled clock that receives the time signal from WWVB is that you never have to set it again. Whether it’s a little digital job on your desk, or some big analog wall clock ...

Researchers have shown, for the first time, that transmission of ultrastable optical signals from optical clocks across tens of kilometers of deployed multicore fiber is compatible with simultaneous ...

A new research paper titled "Epigenetic drift underlies epigenetic clock signals, but displays distinct responses to lifespan interventions, development, and cellular dedifferentiation" has been ...

A clock distribution network (CDN) is a ubiquitous on-chip element that provides synchronized clock signals to all different circuit blocks in the chip. To maximize the chip performance, today’s CDN ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. WASHINGTON (AP) — Earth, for the second year ...

WASHINGTON — Earth, for the second year running, is nearing apocalypse, a science-oriented advocacy group said, pointing to its famous "Doomsday Clock" that shows 90 seconds till midnight. The ...