Because the samples aren't close enough together to capture high frequency oscillations, the shorter the duration of the signal, the harder it is to tell similar frequencies apart.

由于样本距离不够近， 无法捕获高频振荡，因此信号持续时间越短，就越难区分相似的频率。

The Tacoma Narrows Bridge in Washington collapsed in 1940 due to strong winds inducing increasingly high frequency oscillations (rapid movements) on the bridge, to the point that the bridge tore itself to pieces.

华盛顿的塔科马海峡大桥于1940年倒塌，原因就是强风在桥上引发了越来越高的频率振荡(快速运动)，以至于桥将自己撕成了碎片。