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 ...
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.
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Scientists develop an optical clock with unprecedented precision that could redefine time
Scientists built a strontium clock that could redefine the second. Find out how this ultra-precise timepiece works and its ...
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