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So by parallel we mean - they're either both spin up remember that's our spin quantum number, that fourth quantum number.
所以我们意味着,它们都是自旋向上,记住我们的自旋量子数，是第四个量子数。
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But now, because my elements are going to take different amounts of memory, I'm going to do the following thing.
因为我们的元素大小不等,我们要这么做，在第一个点。
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So this is to say, for those of you who are joining us today for the first time, that's totally fine.
也就是说，对于你们中第一次加入我们的同学而言,是相当不错的。
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So, here's the syllabus: two big blocks, first block general principles of chemistry, 1 and that's the same whether you take 3.091 or 5.111 or 5.112.
这就是教学大纲，两大块，第一部分是化学的通则，关于这点，我们的课程1,还有，5。111课程以及，5。112课程都是一样的。
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So the first parable that we have to look at is the one that without question instilled the most anxiety in Milton, and that's the parable of the talents from Matthew 25.
我们要看的第一个寓言,毫无疑问,就是关于弥尔顿最为焦虑的，问题的马修25中关于天资的寓言。
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So in the second creation story beginning in Genesis 2:4, We read that the first human is formed when God fashions it from the dust of the earth or clay.
在《创世纪》第2章第4节开始的第二个创世故事，我们看到第一个人类形成,他上帝用尘土或黏土将人捏造成形。
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The sources are: one,the plasmid vector that we've picked, and the second is these genes that for some reason we're interested in.
第一个是我们选择的质粒载体,第二个是我们感兴趣的基因
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Our tradition was the WHCF was the first person who had a real conversation with the president.
我们的习惯是,办公室主任是第一个,和总统对话的人。
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It is a Bronze Age culture, and it is the first civilization we know in the area.
这是一个青铜时代的文明,也是我们在此区域所知道的第一个文明
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So in our first structure, we would find for the nitrogen we have a formal charge 5 minus 4 minus 2, because we're starting with 5 valence electrons, so that is a formal charge of minus 1.
那么在我们的第一个结构中，我们发现氮的形式电荷量是五减去四4,再减去二，因为我们开始有五个价电子，因此它的形式电荷量是负一。
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We've got of course the very same separation we had in story number one.
我们看到的是和第一个故事完全相同的分离。
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So the first lesson of the class, and there are going to be lots of lessons, that emerges immediately from the definition of a dominated strategy and it's this.
这节课的第一个结论,以后我们会总结更多的结论,从严格优势博弈概念里总结出来的,结论是这样的
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Here's our first question: what's the right thing to do?
下面是我们的第一个问题：,何为正确的选择？
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Our first review section will be in the week of January--with your teaching fellows-- will be in the week of January twenty-eighth and we're going to have to ask you to sign up with one of the teaching fellows.
我们的第一次复习课,将在一月。。。和助教一起-,将在1月28日所在的那周,我们会叫你们，选择和一个助教合作。
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That is another question we want to ask And I think about the five days of pure rain, where people were soggy at the first night and it only got worse.
这也是我们想要问的另一个问题,以及“我们怎么成长“，我想到了，And，how，do，we，grow…,连续五天瓢泼大雨的一次,人们在第一天晚上都湿透了，状况越来越糟。
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So this is a thing, Week Number Four, saw very commonly, which was -- this is something we saw commonly and there's a couple of issues here.
所以这是一件事，第四个，一般的分解，那是我们讲解的东西,这里有好几个问题。
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The first problem set will be posted shortly, and that means, you know, we want you just to get going on things. Don't worry, we're going to make them more interesting as you go along.
第一个问题的提出会很快让你们熟悉，意思是说，你们懂的，我们希望你们尽管去放手干，别担心，在你进行的同时我们会,让它们变得更有趣儿。
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So, in a first blush, you might say, well, why don't we just take the first ionization energy?
当你在这个问题上第一次陷入尴尬境地的时候，你可能会说，我们为什么不取第一个电离能呢？
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And so one of the things we'll look at today is how can we leverage an algorithm, how can we implement an algorithm that at least at first glance the second time we've now seen it feels so obviously better.
因此，今天我们要学习的一点就是,我们怎样才能影响一个算法，怎样实现一个算法,使你在第二次看它时会觉得,至少比你第一次看到它时更好。
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And a sign of the humans' importance is the fact that Humans are said to be created in the image of God, And this occurs in Genesis 1:26, "Let us make man in our image, after our likeness."
另一个表明人类重要性的事实是,人类是依着上帝的模样创造的，这是《创世纪》第1章第26节中讲到，“让我们依着自己的模样造人，与我们相仿“
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This is the first moment that the poet John Milton is actually speaking in his own voice, and he's speaking directly to us.
这是第一次诗人弥尔顿,在以本尊的声音做着叙述，并且是在直接的向我们叙述。
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And actually before we start into today's topics, I want to remind everyone and hopefully you all do remember that our first exam is coming up and it's coming up in exactly a week, so it'll be a week from today, next Wednesday.
实际上在这之前，我还要提醒大家一下,希望大家都记得,我们的第一次考试就要到了,就在下周，距离今天正好一周，下周三。
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that the actor playing Comus in this first and only performance in the seventeenth century was none other than our John Milton himself.
在17世纪,演员第一次也是唯一一次扮演Comus的,不是别人正是我们的弥尔顿。
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But unfortunately, this is incredibly underwhelming certainly in the first week of a course.
但不幸的是，它不能让我们,在第一周的课程里留下深刻的印象。
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So what we're doing is filling in those eight electrons following the Aufbau principle, so our first electron is 1s going to go in the 1 s, and then we have no other options for other orbitals that are at that same energy, 1s so we put the second electron in the 1 s as well.
它会是什么样子呢,我们正在做的是将这8个电子按照奥弗,堡原理进行填充,所以我们第一个电子将会进入，然后我们没有其他的,轨道的选择在同一个能级，所以我们把第二个电子也放入。
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The question was how many rabbits do you have at the end of a year? At the end of two years? At the end of more than that number of years, and so. We can do this with the following level definition. We're going to let pairs of 0, the number of pairs at month 0, actually it would not be it would be 1.
在下一个月末的时候让我们假设,这2只小兔子也有了后代,同样是一公一母,问题是一年后你会有多少只小兔子？,两年后呢？更多年后呢？,我们可以用接下来的等级说明来解释，在第0个月有0对兔子。
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It turns out that we are far from the first people, although it felt exciting, we did not discover this for the first time here today. In fact, J.J. Balmer, JJ Balmer who was a school teacher in the 1800s, was the first to describe these lines that could be seen from hydrogen.
实际上，它第一次被发现已经是在很早之前了，虽然我们觉得很激动，但我们,并不是第一次发现这个的，事实上，一个19世纪的老师,是第一个在氢原子中发现这些谱线的人。
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But that merging process only takes N steps, N*log N so that's N times log of N. Now, it's a little tricky to reason through this perhaps the first time, let's just take a very simple example and see if we can do a little sanity check here.
但这个合并过程只需要N步，所以时间复杂度是,第一次对此进行推论可能会有点儿棘手，我们举一个简单的例子,看看我们能否做一些完整性的检查。
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2 So what we end up saying is that the z effective or the effective charge that that first electron feels is now going to be plus 2.
第一个电子感觉到的有效的z或者有效电荷现在是,我们再一次将它带入我们的方程。
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The standard library, that first line of code, it's not strictly necessary but any time you use a function, a tool that someone else wrote that lives in that so called library, you do need that include line as we'll see.
标准库函数--第一行代码，严格来说，不是每次都要写的，但是一旦你调用某个别人写，的函数，而这个函数又恰巧位于标准库里面,你就要像我们看到的这样，把它include进去。
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