核钟不只是更准，也可能打开新测量方式
A clock sounds like a finished invention: it tells time, and better clocks simply tell it more accurately. In science, however, precision is not a luxury. It can create entirely new questions.
Atomic clocks already use the regular behavior of atoms to define time with extraordinary stability. A nuclear clock aims at an even more protected rhythm, connected to changes inside an atomic nucleus rather than only the surrounding electrons.
Inspired by public Nature article clues · Rewritten by Vocabsavvy · Vocabsavvy Original (public-snippet inspired)