Scientists have created a clock so precise it could redefine the second. The strontium optical lattice clock is one of the most accurate timepieces ever made, capable of measuring seconds to 19 ...
Phys.org: Strontium optical clock accurate to within 1 second over 30 billion years
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 ...
Strontium optical clock accurate to within 1 second over 30 billion years