Keeping perfect time is far trickier than it sounds. The world’s best clocks that are used for GPS navigation, satellite communication, and testing fundamental physics depend on carefully controlled ...
Chinese scientists have developed a crystal that produces ultraviolet light at a record 145.2 nanometers — meeting a key ...
Nuclear clocks promise accuracy far beyond existing atomic timekeeping systems Thorium 229 offers a rare pathway to practical nuclear time measurement Ultraviolet breakthrough reduces one of the ...
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