If we have a higher z effective, it's pulled in tighter, we have to put in more energy in order to eject an electron, so it turns out that that's why case 2 is actually the lowest energy that we need to put in.

而如果有效核电量更高，原子核的束缚也就更紧，我们不得不输入更多的能量来打出一个电子，这就是第二种情况,所需要输入的,能量更少的原因。

麻省理工公开课 - 化学原理课程节选

So whenever we're thinking about energy states, it's lways more stable to be more low in an energy well, so that's why it makes sense that it's favorable, in fact, to have an electron interacting with the nucleus that stabilizes and lowers the energy of that electron by doing so.

负的能量越多，能级越低,无论何时，能级总是越低越稳定,所以这就是为什么电子更,倾向于通过和原子核相互作用,来稳定并降低电子的能级。

麻省理工公开课 - 化学原理课程节选

Gram for gram it provides a lot more punch in terms of calories than protein or carbohydrate, and that could be why fat has such an appeal to human physiology and why people like high fat foods.

每克脂肪比蛋白质或碳水化合物,提供更多卡路里的热量,这是人类身体对脂肪如此渴求的原因,人们为什么如此喜欢高脂食物

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 if the firms wanted to make more money, the only thing they could do is they could sign an agreement saying, why don't each of us produce not our Cournot quantity, but produce half monopoly profits.

所以如果你们想多赚钱,唯一能做的就是签协议,我们不要按古诺产量生产了,各自生产垄断利润的一半多好呢

耶鲁公开课 - 博弈论课程节选