Scientists developed a highly accurate optical ion clock, improving time measurement precision by 1,000 times.

Recent research published in Physical Review Letters by PTB (Physikalisch-Technische Bundesanstalt) details the development of a new indium-ytterbium crystal optical clock, which achieves an accuracy ...

Today, the world’s most precise atomic clocks are the strontium optical lattice clocks created by Jun Ye’s group at JILA in Boulder, Colorado. These are accurate to within a second in the age of the ...

a single-ion ytterbium clock, a strontium lattice clock, and a cesium fountain clock. The ratio of the indium clock to the ytterbium clock is the first to reach an overall uncertainty lower than ...

Another significant advancement is the development of a multiplexed optical lattice clock, which allows multiple ensembles of strontium atoms to be interrogated simultaneously. This innovation has ...

In an optical atomic clock, atoms are irradiated with laser light. If the laser has exactly the right frequency, the atoms change their quantum mechanical state. All external influences on the atoms ...

If you, too, are harboring doubts about your sleeping habits, it may be beneficial to forego the phone entirely and settle for a more traditional alarm clock. In today's modern age, alarm clocks ...

The 2025 Doomsday Clock time is displayed after the time reveal. The Doomsday Clock, currently the ... [+] nearest it has been to midnight at 89 seconds, is a symbol for how close humanity is to a ...

As convenient as it might be to use your phone as an alarm clock, standalone alarm clocks come with all kinds of features that can make waking up — or even going to sleep — a little less painful.

The Doomsday clock was set at 89 seconds to midnight on Tuesday morning, putting it the closest the world has ever been to what scientists deem "global catastrophe." The decades-old international ...