What I want to talk about here though is a different aspect of how we think about human groups.
但我今天想讲的是,我们对群体的看法的另一个方面。
You could absolutely implement something more interesting and something even more animated like we saw on Wednesday or even earlier today, but it takes a little more than just a format string.
你绝对可以实施一些更有用的,和一些更愉快的东西,像我们周三或今天早些时候,看到的,但它不只是,格式化字符串。
All right. So, today we're going to be talking about molecular orbital theory, but first I wanted to just mention, in case some of you didn't hear what the Nobel Prize was this morning, and this was in chemistry, it went to three different chemists.
好的,今天我们要讲的是,分子轨道理论,但首先我要说,以免有些同学没有听到,今天早上的诺贝尔奖,这是化学奖,它颁给了3个不同的化学家。
Today we have different kinds of music to substitute for the flute but you get the point.
今天我们听不同的音乐,取代了长笛,但你可以想象一下。
And then Alli Crum is one of the others but she is unable to be here today, so we'll introduce her to you later.
本来还有阿丽·克拉姆,但她今天有事没来,我们以后再介绍她
If you want a more technical term for that , and you'll remember this from economics 115 can lead to outcomes that are "Inefficient," that are "Pareto inefficient," But "Suck" Will do for today.
要是想说的更专业店,记不记得在经济学115里面说的,会导致“不充分的”结果,即"帕雷托效率",但我们今天说"糟糕"就可以了
We're going to talk in some detail, not a very high level of detail, but in some detail about how this communication takes place between cells and how the information is passed down one of these cells today.
我们还要讨论些细节问题,但不是太深,今天只讲细胞间通讯的发生原理,和信息怎样从一个细胞传递到另一个细胞
There are a number of different methods that scientists use to see what foods are related to particular health outcomes, and we won't go through all of them but I will -over the course of the class we'll talk about various methods, but I'd like to talk about two primary ones today.
科学家有很多不同的方法,来研究食物与健康的关系,我们不会一一提及但我会,这门课上我们会提到很多方法,但我今天只想说两大重要方法
So it's really neat to think that your counterparts 100 years ago right here at MIT could have been sitting in a class where they had Lewis as their lecturer, and he's putting forth these ideas -- these are actually his lecture notes, even though it wasn't even published yet, and giving this idea of Lewis structure, which is exactly what we keep using today in order to make a lot of these predictions.
因此会有很棒的感觉,当想一想一百年以前像你们一样,在这上学的同学可能正坐在教室里,听路易斯讲课,而他正在提出这些想法-,-而这些正是他的课堂讲义,尽管当时还没有发表,但已经给出了路易斯结构的思想,这正是我们直到今天都一直在用的,用它来做很多预测。
Okay. Those of you who have your clickers let's pull them out, what I'd like you to do, if anybody doesn't have your clicker yet, please bring it to class. Please get one and bring it to class and we're only going to do one these exercise with the clickers today just as a test, but in subsequent classes we'll be using them quite a lot.
好,带了表决器的人把它拿出来,如果有人还没有表决器,我希望,你能弄一个然后把它带到课上,我们今天只要用表决器做一个测试,但之后的课中我们将多次使用到它
We'll introduce in the next course angular nodes, but today we're just going to be talking about radial nodes, psi and a radial node is a value for r at which psi, and therefore, 0 also the probability psi squared is going to be equal to zero.
将会介绍角节点,但我们今天讲的是,径向节点,径向节点就是指,对于某个r的值,当然,也包括psi的平方,等于,当我们说到s轨道时。
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