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Then you get to 2 and 3 John, two letters that are written to "the elected lady and her children."
然后是约翰二书和约翰三书，这两封信都是写给,“蒙拣选的太太和他的儿女“
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And you would expect that that would be a much stabler compound because, instead of plus one attracting plus one, now you have plus two attracting minus two.
可以预见,这将会是更稳定的化合物，因为不再是一价正离子吸引一价负离子，而是二价正离子吸引二价负离子。
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A second point is it's beautifully written and you're not also, not allowed to write that way anymore either.
二是，这描述的很美,你不能,同样，不允许你以这种方式写。
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The reason for inexact doesn't mean it's a crummy measurement, t means that it's path dependent, and so the value of this integral depends on how you get from one to two.
这是因为它是,与积分路径有关的，因此这里的积分值，取决于从一端到二端的,具体路径。
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If we want to talk about two hydrogen atoms, then we just need to double that, so that's going to be negative 2 6 2 4 kilojoules per mole that we're talking about in terms of a single hydrogen atom.
而要讨论两个氢原子，我们只需要把它乘以二，因此应该是负的，2624，千焦每摩尔,这就是单个的氢原子的情况。
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OK. If last minus first is greater than or equal to 2-- sorry, less than 2, then either look at this thing or look at that thing.
大于等于儿，抱歉，是小于二,看看这里或者那里,这就是我说的要特别小心的地方。
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Double that, times by two, this is the money I will be making in one month.
再翻倍，乘以二，这将是我在一个月赚到的钱。
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It is to eat the fruit of the tree of knowledge because if human beings obtain knowledge, they will be like the gods,and that is unacceptable.
食用智慧树的果实,如果人类得到智慧,将与诸神无二,这当然是不能接受的
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What is it that tells us that it's in duple meter?
是什么告诉我们这是二拍子的呢
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Now, strictly speaking, that doesn't prove that premise two is false.
严格的来说,这并不能证明前提二是错的
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It's a simple two by two game.
这是一个简单的二对二的博弈
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A theme of that book was that-- I've already said this to you, but it's a very important point-- financial technology is evolving and improving just the way engineering technology or biochemical technology is improving.
这本书的其中一个主题是...,尽管已经提过,但这非常重要,我想强调一下...,就是金融技术的演进过程,与工程技术或生物技术,的演进过程并无二致
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Development of an artificial heart, again another example of Biomedical Engineering, is something that people have been trying to accomplish for decades now, and this is the closest that we've come and there are many advantages of this particular artificial heart.
人造心脏技术的发展,是生物医学工程的另一个例子,科学家们,试图在这二十年中去改进它,而这是最接近成功的一个实例,这枚人造心脏有很多优点
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Cereal would be--a serving of cereal would be about the amount that would fit in a wine glass, but people think that you fill up a bowl and that becomes a serving, but a typical amount of cereal that people serve themselves might be two or three times what the ordinary size is.
这是一餐份量的麦片,放在酒杯里大概那么多,但人们认为满满一碗才是一份,人们通常所食用的麦片,是原来大小的二到三倍
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So this should immediately look like a problem because we know, in fact, that methane is tetravalent, and this is telling us it's only divalent.
显然这看起来是一个问题,因为我们知道实际上，甲烷是四价的，而这告诉我们它仅仅是二价的。
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Now, the decision tree, if I branch left, it's a binary tree.
现在，这个决策树，如果我走左边的分支，这是一棵二叉树。
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And the last example that we're going to talk about is thionyl chloride, so it's s o c l 2. This is another good step forward, because now we actually have four different atoms in our molecule.
我们要讨论的最后一个例子,是氯化亚砜，就是硫，氧，氯，二，这又是一个进步，因为我们的分子中现在有四个不同的原子了。
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So it's, this is just the integral pdv And it's an ideal gas, isothermal, right.
从一点到二点的,的积分。，from，one，to，two，of，p，dV。,这是理想气体，恒温过程，好的。
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Some people are going and in this course we would know whether you're hearing duple or triple based on some other information so don't worry about if you're doing .
小部分人是,在本课程中我们会知道,你们是否可以根据其他的信息,辨认出这是三拍子或者二拍子,所以也不要担心,哪怕你这样做了
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This happens to be in duple meter and that's fine.
这正好是一个二拍子的曲子,很好
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We all do believe something makes it true that two plus one equals three, but it's not the fact that empirical objects-- We don't do empirical experiments to see whether two plus one equals three.
我们都相信有些东西,使2加1等于3是正确的,但这不是说现实的东西,我们不会在现实中做实验,去看看二加一是不是等于三
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So we'll start to look at molecules and we'll see if we take two atoms and we fill in our molecular orbital and it turns out that they have more anti-bonding orbitals than bonding, that's -- a diatomic molecule we'll never see.
我们要看开始看一看分子,并且我们会发现如果我们,取两个原子并且填入分子轨道,结果是它们的反键轨道,比成键轨道更多，这就是-一个我们不会看到的二元子分子。
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So is this in duple meter or triple meter?
那么,这是二拍子的还是三拍子的
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So it's duple meter.
这是二拍子的
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that's one way to think about it, and there's also another way, and this is the way that your book presents it. If you, in fact, have two of the same atom right next to each other, let's say you have a crystal, or let's say you're talking about a metal, what you can do is just look at the distance between the two nuclei, and split that in 1/2, and take the atomic radius that way.
这只是一种定义的思路，另外还有其它方法，也就是你们课本上的方法，如果你，事实上，有两个相同的原子彼此靠在一起，比如说你有一个晶体，或者说你讨论的是一个金属，你所要做的就是,看看这两个原子核之间的距离，然后将距离除以二，就得到了这个原子的半径。
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