The best clocks now scan a one-hertz-wide sweet spot to find its exact center, plus or minus one millihertz, in every single measurement—despite the Heisenberg limits. 尽管有海森堡限制的存在,目前最好的时钟每次测量时都直接扫描一赫兹宽的「好球区」,以找出确实的中心,误差只有一毫赫兹。
The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named for Heinrich Rudolf Hertz, the first person to provide conclusive proof of the existence of electromagnetic waves.