A breakthrough in timekeeping: Progress toward a nuclear clock
Briefly

The quest for an ultraprecise nuclear clock, based on the thorium atom's nucleus, has fascinated physicists for two decades and marks a significant scientific leap.
As research unfolds at the University of Colorado, the 'XUV Gang' celebrates the first successful 'tick' of this pioneering nuclear clock, a dream come true.
The laser used in the nuclear clock operates in the extreme ultraviolet spectrum, aiming to achieve a level of precision never before realized in timekeeping.
This breakthrough at JILA signifies a transformation in timekeeping methods, moving our understanding and application of time to unprecedented accuracy.
Read at Washington Post
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