earth9 小时
Most accurate optical atomic clock ever made will redefine the meaning of a 'second'
Scientists developed a highly accurate optical ion clock, improving time measurement precision by 1,000 times.
Bulletin of the Atomic Scientists12 天
Join us for the 2025 Doomsday Clock Announcement
Doomsday Clock announcement will be held on January 28th in Washington, DC. The Bulletin’s Science and Security Board will ...
Redefining the second: Optical atomic clock achieves record accuracy in comparison measurement
The next generation of atomic clocks "ticks" with the frequency of a laser. This is about 100,000 times faster than the ...
Physics World12 天
Solid-state nuclear clocks brought closer by physical vapour deposition
Solid-state clock Illustration of how thorium atoms are vaporized (bottom) and then deposited in a thin film on the substrate ...
IFLScience on MSN5 天
Multi-Ion Optical Atomic Clock Takes A Step Towards Changing The Definition Of A Second
Researchers have developed a new approach in optical atomic clocks that brings forth a major goal in science: the ...
Nature22 天
Countdown to a nuclear clock: a three minute guide
Precise timekeeping helps us in our daily lives ... seeking ever more accurate measurements of time, as super-accurate clocks could help make planet-sized telescopes, hunt for dark matter or ...
Interesting Engineering on MSN12 天
Safe, affordable solid-state nuclear clocks could be closer with thin-film technology
Researchers have now found a way to make nuclear clocks a thousand times less radioactive and more cost-effective, thanks to ...
조선일보11 天
China develops mobile atomic clock to enhance military precision in warfare
It maintains precision of less than one picosecond after traversing bumpy roads, which is over ten times higher than the mobile atomic clocks operated in the United States. The new atomic clock ...