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But we can use equations that describe waves to describe matter, and that's what we're going to be doing today.
但我们可以用描述波的方程,来描述物质，这就是我们今天要做的。
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So, we'll start today talking about the two kinds of molecular orbitals, we can talk about bonding or anti-bonding orbitals.
今天我们先来,讨论两种分子轨道，我们要讨论成键和反键轨道。
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Today we're going to be talking about meditation and how to bring these practices into our life, to make life better and feel more connected.
今天我们来谈谈沉思冥想,以及如何在生活中具体实践，让生活更好，更有关联感。
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And the temperature scale that turns out to be well-defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.
比如理想气体温标,它有精确的定义,并能引出绝对零度的概念,今天我们就先来谈谈它。
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And in fact today, right now, we're going to move back the furthest we go, all the way into the nineteenth century to talk about the early Yeats.
实际上今天，现在，我们会回到很早的时候，直到十九世纪,来谈谈早期的叶芝。
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Hobbes provided us with the definitive language in which even today we continue to speak about the modern state.
霍布斯提供了一种权威性的概念,而直到今天,我们依然用它来描述现代国家。
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And then we're going to turn to the question of efficiency. How do we measure efficiency of algorithms? Which is going to be a really important thing that we want to deal with, and we'll start it today, it's undoubtedly going to take us a couple more lectures to finish it off.
然后我们会回头继续讨论效率问题,我们如何计算算法的效率？,我们处理这些问题的时候,最重要的事情是什么？,我们今天要去讨论这个问题，毫无疑问我们要用,挺多节课来学习这个。
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So the first thing we're going to do today is look at a different form of competition which is called Bertrand competition.
所以今天我们要做的第一件事,就是来学习一个不同形式的竞争,叫伯川德竞争
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The vocabulary that we have to wrestle with for today's essay is taken in part from Jakobson's understanding of the relationship between metaphor and metonymy, and we will have more to say about that.
今天的论文中我们读来很费劲的词汇,一部分是从雅克布森,对暗喻和转喻的理解，我们将会在这方面讲更多。
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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
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We're going to begin the class proper, Introduction to Psychology, with a discussion about the brain.
今天我们开始正式上课,心理学导论,我们首先要来探讨的是大脑
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And so, we're going to see a couple of those things today.
所以，我们今天来看看那些内容。
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But as you know already, from what you've read, this has come into great dispute in recent years and I'll just say a little bit about the dispute before we get through today.
不过就像你们在课后阅读中读到的那样,他的说法近年来遭到了越来越多的质疑,我们在继续今天的讲解之前,我会先讲讲人们对于他理论的质疑
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So we'll talk a bit more about this idea of functions today, but, get int, again, can think of it as a black box, whose purpose in life is to prompt the human for input and pester the human if he or she doesn't actually give it int, but then once it has that, has entered it from the user, it's quote unquote, returns it to you.
所以我们进今天将多讨论点这个函数的概念，但是，GetInt，我们可以把它当做一个黑盒子，它的唯一目的是提示人们来输入,并且如果他或她没有,给它int数，则会纠缠用户，但是一旦它得到了，用户输入的int数，对输入进行引用，返回给你。
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So what we'll start with today is talking about the technique that's primarily used to actually experimentally figure out what these different energy levels are.
因此，我们今天首先要讨论的就是,最常用来在实验上,确定不同能级的技术。
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So, our detection devices are a little bit limited here today, we're actually only going to be using our eyes, so that means that we need to stick with the visible range of the electromagnetic spectrum.
我们今天所有的探测仪器十分有限，实际上我们要用我们的眼睛来观测，这意味着我们只能看到,电磁谱中的可见光区间。
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Now, if this all seems like arcane and irrelevant detail, let's just see why this matters in the picture, and then we'll leave soccer, at least for today.
如果你觉得这些听起来稀奇古怪,且它们与你毫不相干,那我们就来看看这个图像吧,以后我们不讨论足球了,至少今天是不会讨论了
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All right, so let's move into today's notes.
好了，让我们继续道今天的课程来。
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We'll see it briefly today.
我们今天来简单看一下。
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Again, for the math phobics in the room, don't panic, this is just writing down in words what we've already seen a couple of times already today, well today and last time.
在座的有数学恐惧症的同学不必惊慌,这仅仅是用数学表达式来表示,我们今天学到的一些知识点罢了,其实是这一讲和上一讲的知识点
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We're actually going to do one more clicker question to get started with today, and as we do, I'll explain something we're going to be trying today, which is a little bit of a friendly competition in terms of answering the clicker questions correctly.
我们将在开始讲授今天的课程之前,再多做一个选择题，我先来说明一下做这件事的原因，这实际上是一个,回答选择题的小比赛。
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But it's a very interesting topic, so today we're going to talk about how do you measure what people eat, and you're having some experience that yourself with the daily plate dietary assessment.
这个话题实在有趣,所以今天我们要讲如何评估人们吃的东西,你们就能学到一些知识,来做自己的日常的饮食分析
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This will frame our discussion today.
我们今天就主要来讨论这些问题
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And it's a topic I want to pick up on today, we're going to do for the next few lectures, and it's a topic I want to spend some time on because this idea of capturing data and methods, the term we're going to use for it, but data and functions that belong to that data, things that can be used to manipulate them, is a really powerful one.
我们会在今天讲这个话题,在后面几节课还会讲这个,这是个我愿意花点时间，在上面的话题因为这是个,捕获数据和方法的思想,我们用这个术语来形容它，数据中包括了数据和函数等，能用来操作它们的东西,真的是很强大的工具，我们真正要讲的东西是，我们要学会如何把信息。
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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
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So I'm going to start today, we have about five or ten minutes left, sorry, five minutes left - in order to do this with some beginnings of Python, and we're going to pick this up obviously, next time, so; simple parts of Python.
这是我们需要学习的必要知识，我今天就会，五分钟或者十分钟的时间,对不起是五分钟，为了以Python开头来做到到这一点，我们会去学习这些。
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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。
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