The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.
阿秒时间尺度对于电子运动的研究，就像高速摄像机对于研究动物运动一样重要。#
A story is a way of making sense of the past.
I am always glad to think that my education was, for the most part, informal, and had its roots in the soil.