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So a bit of uninteresting math, a bit of focus on sizes of types, but any questions on syntax or concepts thus far before we now put this to the test?
一些比较无趣的数字，一些关于类型的大小,在我们现在进行试验之前,你们对这其中的语法或概念有什么问题吗？
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Is there any community activity you're participating in now?
你现在有参加什么社区活动吗?
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If you think about what happens when we go from hydrogen to helium, now instead of one electron, we have to describe two electrons, so now we have six position variables that we need to plug into our Schrodinger equation.
如果你们考虑,当我们从氢到氦会发生些什么，现在我们不是要描述一个电子，我们将要描述两个电子，所有我们现在将有6个位置变量,需要加入至薛定谔方程。
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It's very difficult for us to imagine a fear of Sweden.
现在对于我们来说很难理解,瑞典能有什么好怕的
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The second question was about China and there was a special report in the recent Economist talking about the ravenous appetite that China has for natural resources right now. I was curious what you ? thought the effect that would have on global financial ? markets and your investing strategy?
第二个问题是有关于中国的,在最近的《经济学人》杂志上有一篇特别报道,该报道是关于现在中国对自然资源的极度渴望,我非常想知道您个人认为,他们这种情况对全球金融市场会有什么影响呢,对您的投资策略又有什么影响呢？
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But it's often seemed to people that if we really believe that death is the end-- and that's the assumption that I'm making here on out-- if we really believe death is the end, how can death be bad for me?
但是通常我们都会认为死亡就是终结-,我现在所设定的条件就是-,如果我们真的相信死亡就是终点，死亡对我来说有什么不好呢？
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Basic idea, before I even look at the code, is pretty simple. If I've got a list that is sorted, in let's call it, just in increasing order, and I haven't said what's in the list, could be numbers, could be other things, for now, we're going to just assume they're integers.
我们可以说基本的思想是很简单的,如果我有一个排好序的数组，让我们认为这个数组是递增的吧，我并没说数组里元素是什么，可能是数字，也可能是其他的东西，现在我们假设是integer类型的数字吧，最简单的方式就是这么做了：
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Any questions at this point about moral feelings?
大家现在对道德情感有什么疑问？
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I like this piece because it does something and I've used it in previous years, and I put it on and I would announce "I'm now going to play out of the-- It's an album called Document by REM ," and put it on and REM and it's fine with me.
我很喜欢这曲子,因为它确有独到之处,过去几年的教学中我一直用到,我往往会说,现在我放一段曲子,这张专辑叫,文档,是REM乐队的,然后就放曲子,我没觉得有什么问题
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Now we can think about the fourth period, and the fourth period is where we start to run into some exceptions, so this is where things get a teeny bit more complicated, but you just need to remember the exceptions and then you should be OK, no matter what you're asked to write.
现在我们可以考虑第四周期，而且在第四周期,我们会遇上一些特例，所以事情有,一点复杂，但是你只需要记住,这些特例然后就没有问题了，无论你被要求写什么。
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For those of you don't know what that is it's simply an instrument that counts radioactive particles in the air, and MIT now that you're at MIT, you'll all have a chance to see one first hand if you're ever in any of the labs, especially in the chemistry or bio labs.
不知道它是什么,它就是一个简单的,计算在空气中放射粒子数目的仪器,你们现在来了，如果你们在实验室里工作的话,尤其是化学和生物实验室，你们有很多机会亲手用到它。
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The thing about corporate America--few people that go to college, like where you are now, and most people in America don't realize how poorly most of our companies are run in this country, with many exceptions.
美国企业的问题是--没有什么人,上过大学，没人去过像你们现在所在的地方，很多在美国的人怀揣着对美国企业的希望,并没有意识到大多数我们的企业，经营的有多糟糕。
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So if we're comparing the difference between these 2 now, what you'll notice is that in nitrogen we have all half-filled 2 p orbitals, and now, once we move into oxygen, we actually have to add 1 more electron into 1 of the 2 p orbitals.
那么如果我们来比较下它们两个有什么不同，你会发现氮的，2，p，轨道,都是半满的，现在，我们继续看一下氧，我们不得不在其中一个，2，p，轨道上,再放上一个电子。
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PROFESSOR: Yeah, that's right. So, what we have here, cathode rays we now know are negatively charged particles. And, in fact, he named these negatively charged particles. Does anyone know what he named them? No, not electrons - very good guess. He named them corpuscles.
学生：负电，教授：是的,我们现在知道，阴极射线是带负电的粒子,实际上他还给这些,带负电的粒子去了一个名字,有谁知道叫什么吗？
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So we end up with 3 s p 2 hybrid orbitals, so we can think about what would happen here in terms of bonding, and if we think about how to get our bonds as far away as possible from each other, what we're going to have is the trigonal planer situation.
因为现在sp2轨道有1/3的s特征，2/3的p特征，而不是3/4。,我们最后得到3个sp2杂化轨道，我们可以想象,成键时会发生什么，如果我们考虑。
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