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It gives you a lot of expressive convenience, you can write the programs much more cleanly, but most importantly, it's fast.
你可以把一些程序写的更清楚，最重要的是，它的效率非常高。
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And the bigger lesson from that is that entropy, unlike energy u or enthalpy H, we could define an absolutely number for it.
热力学第三定律的一个更重要的推论是,与内能和自由焓不同，我们可以给上定义一个绝对的数值。
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So, that was more like solving chess puzzles, and I couldn't have seen a career on that.
所以这一切更像是解一个棋局，我原来从不认为哲学可以成为一种职业。
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So we've seen one example of this, this idea of walking through all the integers looking for the square root.
现在计算机速度很快了，我可以把这个数字设的更大点,计算机会去很快的做这个事情。
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Before long we'll see that you can actually put things inside those parentheses which make your programs even more useful.
不久之后，你们就可以看到，我们是可以在括号里面加参数的,这些参数可以让你的程序更有用。
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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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He gets to go up to Plato's heaven where he can have more direct contact with these things, with the forms.
他可以飞升至柏拉图的天堂,在那里他可以更直接地,接触到型相
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You'll find in Renoir but Renoir's humor is even subtler than Hitchcock's I mean, it's more subtler than Hitchcock.
你们可以找到大量的幽默,在雷诺的电影里,但是雷诺的幽默比希区柯克的更微妙。
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But it's interesting to go a little further and think actually about what the concept means and where it comes from.
我们可以讨论得更深入些,想想这个概念的真正意义和它的来源
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All right. So formal charge can actually help us out when we're trying to decide between several Lewis structures that look like they might be comparable in terms of which might be the lower energy or the more stable structure.
好的，形式电荷真的可以,帮助我们决定,在几种路易斯结构中,哪个更可能符合能量更低,或者结构更稳定的要求。
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Perhaps you are a little bit more optimistic, a little bit more utopian-- human nature can be improved.
也许你更乐观，更加乐天，人性可以改善。
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Think of that? "nothing more repugnant to government " than what Aristotle wrote in his Politics."
想一想这句话，“没有更令人反感的政府,可以比得上亚里士多德在《政治学》中所描述“
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Then we can take this and turn it into something a lot more complex with -singing a lot of lines going their own way.
接下来我们可以,弄得更复杂一些,同时让许多乐句单独进行
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It's accessible to Israelites who are pure. The sanctuary proper, which is in closer proximity to God, bears a still higher degree of holiness: it's accessible only to the priests, who are said to be the holy ones within Israel.
纯洁的以色列人可以进入，而圣所本身，它更接近上帝，具有更高的神圣性：,只有祭司可以进入，在以色列，祭司被认为是神圣的。
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You can go way there's lots of books on this and articles on this; why cockfighting was more popular in the South, why country fighting and eye-gouging was--.
你可以去查阅,有很多相关的资料和书籍,为什么斗鸡在南方更盛行,为什么打架和挖眼珠子更
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In some cells they're recycled, that is the cell is able to take up the neurotransmitter after it's released and restore it, but most often there are enzyme systems inside the pre-synaptic membrane where those neurotransmitters are synthesized.
在一些细胞中神经递质可以循环利用,这些细胞可以吸收,已经释放出的神经递质并重新储存起来,但更常见的是突触前膜中含有酶系统,在此合成神经递质
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What I'm more interested in here than in the result of the simulation, is the process of creating it.
然后你们可以进行思考,我对这些过程，比对仿真程序的结果更感兴趣。
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We could certainly implement this much more efficiently by just writing this one line of code, but, again, the key here is to take this step toward decomposing our code into chunks of code.
我们可以写这一行代码,使代码的执行更有效率，但是，这个关键字用来把我们的代码分解,成一段段的。
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So, if I kind of circle where the probability gets somewhat substantial here, you can see we're much closer to the nucleus at the s orbital than we are for the p, then when we are for the d.
我把概率,很大的地方圈出来，你们可以看到在ｓ轨道上,比ｐ轨道更接近原子核，最远是ｄ轨道。
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And you should know that a 2 s is larger than that, and a 3 s is even larger, and of course, hopefully as we go to 4 and 5, you would be able to guess that those are going to get even larger.
你们要知道２ｓ比这更大一点，３ｓ就更大，当然对于４和５,你们可以猜到,它们就会更大一些。
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We can know this information even if we just knew that the bond was stronger, we wouldn't need to look at a graph here, because it turns out that if you have a stronger bond, -- that also means that you have a shorter bond -- those two are correlated.
我们依然可以得到上面的信息,即使我们所知道仅仅是这个键更强，我们不需要去看这个图，因为事实上如果你有一个更强的键，这也就意味着你有一个更短的键-,这两点是互相关联的。
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I'm an organic chemist, so I love carbon, it's one of my favorite atoms to talk about, but it would be nice to get to the point of bonding and even reactions to talk about all the exciting things we can think about once we're at that point.
我是个有机化学家，我喜欢碳原子，这是我最喜欢谈论的原子之一，但我更喜欢讲成键,甚至化学反应的概念,一旦到了这之后,我们就可以考虑各种激动人心的事情。
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We can also think about the distance, the bond distance. So, which would you say is going to be shorter in this case?
我们还可以考虑一下距离，键的距离那么，大家认为其中哪一个键会更短一些？
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So, what we know is happening is that were having transitions from some excited states to a more relaxed lower, more stable state in the hydrogen atom.
我们知道，这里所发生的是,氢原子从激发态到更低更稳定的态的跃迁，而我们用眼睛可以探测到的。
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It imports it into our database and does some fancy indexing as we'll call it later in the term to make searches more efficient.
将它导入到我们的数据库中，并进行一些变址,这将在后期会提到,它可以使查找更高效。
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And I haven't said yet, how do I get that collection, but you could certainly conceptualize that, if I had that collection, that would be nice thing to do. That is a more common pattern.
也可以这么来操作,这是个更常用的模式,这基本上也就意味着，对于某些数据的集合,我想要一个循环机制。
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And the reason we can see that by looking at this graph is that we see that nitrogen when it's bonded is in an even lower well than we saw for hydrogen.
原因可以通过观察这幅图发现,我们看到氮在成键之后将处于更低的势阱中,对氢而言。
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So, in talking about covalent bonds, we should be able to still apply a more general definition of a chemical bond, which should tell us that the h 2 molecule is going to be lower in energy than if we looked at 2 separate hydrogen atom molecules.
那么，既然提到了共价键，我们应该还可以,给化学键下一个更普遍的定义,那就是告诉我们氢分子能量应该更低,与两个分开的氢的单原子分子相比。
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So when we talk about the size of multi-electron orbitals, they're actually going to be smaller because they're being pulled in closer to the nucleus because of that stronger attraction because of the higher charge of the nucleus in a multi-electron atom compared to a hydrogen atom.
所以当我们讨论,多电子轨道的尺寸，它们实际上会变得更小,因为多电子原子的原子核,相比于氢原子,有更高的电荷量所以,有更强的吸引力,所以可以拉的更近。
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I just reduced it to a smaller version of the same problem.
我刚刚把它简化为一个更小的同类问题,这就是我可以写出能解决更短字符串的例子。
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