And if all of the possible brackets were filled out on standard paper and stacked on top of each other, how big would the pile be?" It would actually go from the earth to the moon and back,1.1 million times,".

VOA: standard.2009.03.25

- Just to give you another several fun facts -- and next week, once we've looked at your Problem Set "Zero Submissions," which, if you haven't filled it out yet, you'll see asks a few demographic questions, a few geek-type questions so we can get a sense of the students.

我给你们分享另外几个有趣的事实-,在下周，一旦我们看到你们的习题集上是,“零个意见书“，如果你们还没有填写那个习题集的话，你们可以问一些人数统计方面的问题，或一些古怪的问题，那样我们就能对学生有个初步的了解。

哈佛公开课 - 计算机科学课程节选

So we want to look at any element that has a 3 p orbital filled, but that does not then go on and have a 4 s, because if it had the 4 s filled then we would actually see six lines in the spectrum.

所以，我们要找一找有哪些元素的,3，p，轨道被占据，但没有，4，s，轨道被占据,因为如果，4，s，轨道也被占据了,那我们会在光谱中看到第六条谱线。

麻省理工公开课 - 化学原理课程节选