"In the United States, one is expected to go to high school for four years and you get a diploma just for showing up or attending.

VOA: special.2010.02.25

There is this building and it's going to be 15 meters high, and I'm going to throw something and it's going to go up and come down.

这是一栋大楼,它有15米高,我会抛出某个物体,它将先上升后下降

耶鲁公开课 - 基础物理课程节选

If you go to the web just type in glycemic index, you can pull up chart after chart of high and low glycemic index foods, and sometimes you get surprised by what those foods are.

如果你在网上输入血糖指数,你会得到一个又一个,关于食物血糖指数高低的图表,有时你会被列表中的那些食物吓一跳

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So that should mean that the energy that's transferred to the electron should be greater, but that's not what you saw at all, and what you saw is that if you kept the frequency constant there was absolutely no change in the kinetic energy of the electrons, no matter how high up you had the intensity of the light go.

所以这意味着转移到电子,上的能量也越大，但这并不是，我们观测到的现象,我们所看到的是,如果固定光的频率不变,不管光强如何变化,电子的动能没有任何变化。

麻省理工公开课 - 化学原理课程节选