As the clock ticked to the next second, she struck the cymbals together. This simple performance, titled 61/60, sought to ...

Lutetium clocks have achieved record accuracy and comparison precision, making them promising candidates for future time standards and measurements of gravity.

Physicists have unveiled the world’s most accurate clock — a timepiece so reliable that it would take more than 260 billion years to lose 1 second. Precision clocks are used in everything from ...

(Patcharin Saenlakon/iStockphoto/Getty Images) The time-keeping offered by your watch or phone may be good enough for day-to-day life, but scientists are much more ambitious in terms of precision, and ...

A Cold War icon, the clock conveys scientists’ views on humankind’s risk of destroying itself. Its current setting: just 100 seconds to midnight. The Doomsday Clock, reset each January, remains at 100 ...

We say this word multiple times a day, but what does it really mean? Two linguists took the time to explain the fascinating origin of o'clock. Read on to learn what the o in o’clock stands for and how ...