Then I'm going to release these little pegs here and my piston is going to shoot up now p1 because p2 is less than p1.

现在移开插销,活塞就会往上冲,因为p2小于。

麻省理工公开课 - 热力学与动力学课程节选

now we're not just talking about 1 photon, 1/2 let's say we shoot them all at the same time at our metal, each of them having some energy that's let's say 1/2 the work function. So, just to take a little bit of an informal survey, who thinks here that we will have an electron that is ejected in this case?

我们现在不仅仅讨论一个光子，它们所具有的能量是功函数的，我们在同一时刻把它们打到金属上,我们做一个不太正式的调查,谁认为这种情况下,一个电子会被打出？

麻省理工公开课 - 化学原理课程节选