But when the fishes are in the water they just see that the biscuit is coming and immediately it gets into the water and they too will come and take it off."

VOA: standard.2009.09.26

We have a zinc plate up here, and we're going to -- in a minute I'll describe how we can probe if electrons are coming off of it.

我们有一块向上的锌板，我们将在一分钟内描述,我们是怎样探测出,是否有电子从上面射出的。

麻省理工公开课 - 化学原理课程节选