The clock itself is what’s known as a strontium optical lattice clock. Researchers in China have built one of the most ...

Chinese scientists create clock so precise it could redefine second - Optical clock measures time using light emitted by ...

Researchers from the University of Science and Technology of China have achieved a major breakthrough in optical clock technology, developing a strontium optical lattice clock with stability and ...

To find out how clock accuracy is verified and which reference is used for comparison, we visited the Belarusian State Institute of Metrology (BelGIM), where most of the national standards are kept.

Scientists built a strontium clock that could redefine the second. Find out how this ultra-precise timepiece works and its ...