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So,yes,there is a threat particularly of the use of radioactive material, although we have no specific evidence indicating any capability at this time."
VOA: standard.2009.05.01
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We control how we use time, we control the temperature in the environment, and hermetically seal ourselves in things.
我们控制时间的利用，我们控制周边环境的温度,我们把自己封闭在各种事务中，与世隔绝。
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- Well, just a moment ago, we did have -- -- and this time I'll use some chalk here -- a moment ago, we did have a picture depicting what was going on when you call the function.
好的，刚才，我们确实有-,这一次我将用一些粉笔-,刚才，我们有一张图描绘了当我们调用函数的时候,会发生什么事情。
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And we talked about the equation you can use for radial nodes last time, and that's just n minus 1 minus l.
我们讲过这个用于,计算径向节点的方程，也就是ｎ减去ｌ减去１
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Or another way of saying it is, we're going to use as the basic steps, those operations that run in constant time, so arithmetic operations.
我们用可以在恒定时间内完成的操作,算法，比较,内存读取。
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This is important because we use this all the time for when, when we do technology.
因为当我们做技术工作,的时我们一直在用它。
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This is a kind of argument that we use all the time.
这是我们常用的一种论证方式
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So, I brought up this idea, "What if we could just use SMS? You could send what you're doing. It will go out in real time to all the people who are interested in hearing it. And then, it would be archived on the Web. You could also enter it from the Web and it would be device-agnostic.
所以我提出了这样的想法，如果我们只使用短信息会怎么样？,你可以发送你正在做的事，它会立即,让每个有兴趣听的人都看到，接着，它会在网上存档，你还能再网上读到它,而不需要设备支持。
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Next time we'll use the camera for that.
下次我就用摄像机拍下来了啊
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And what we find, the first example of a Bronze Age-- and I use the word civilization now for the first time, because before the Bronze Age-- there is nothing that we would define as civilization.
我们发现的第一个文明出现在青铜时代,也是我第一次用文明这个词,因为在青铜时代之前,没有任何东西能称之为文明
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the word "Jew" isn't something we can really historically use until about this time , so most of our period we're going to be talking about the ancient Israelites to become an Israelite, you simply joined the Israelite community, you lived an Israelite life, you died an Israelite death.
关于Jew这词历史上,直到公元前500年才开始用，所以我们的大多数时间,将会讨论古以色列人,成为一个以色列人，你只要加入以色列人社区，按以色列人方式生活，按其方式安葬。
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And the reason is, and this will come up on the problems and a lot of students end up using this equation, which is why I want to head it off and mention it ahead of time, we can't use an equation because this equation is very specific for light.
原因是，很多同学在解题时,都会用这个方程，所以我要,事先提醒你们一下,我们不能用这个方程，因为它只对光是用。
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So here I'm going to use the example we had in class last time.
所以在这里,我将要使用上次在课上举过的例子。
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Everyone agree because 5 is bigger than 1, and 5 is bigger than 4, so Up is and to use a technical term we'll define formally next time Up is the best response to Left.
大家都知道5大于1,5也大于4,所以选上是,以后我们就要用术语来说了,选上是左的最佳对策
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if you don't want to use that, you can also derive it as we did every time, it should intuitively make sense how we got there. But the exams are pretty short, so we don't want you doing that every time, so we'll save the 2 minutes and give you the equations directly, but it's still important to know how to use them.
吸收的和发射的，如果你不想用公式,你也可以每次都向我们这样推导它,很直观的就能得到结果，但考试时间很短，我们不希望你们每次都推导,所以我们会直告诉你，让你节省2分钟，但知道如何应用它十分重要。
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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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We have to build this whole new detector, is this really the best use of my time?
最后测到了132000个alpha粒子，我们还要找什么？
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And I would suggest palindrome as a great example of that. That's easy to think about recursively. It's much harder to think about iteratively. And you want to get into the habit of deciding which is the right one for you to use. And with that, we'll see you next time.
其它的问题可能用递归的方式,可以更好的解决,而直接思考可能很困难,这时你就得养成做出,正确选择的好习惯了,下周再见。
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Just to see that in a very simple example, again, we don't use such a complicated example as the one we looked at last time, you could imagine a game, a really trivial coordination game, which looked like this .
不妨再举一个例子,我们就不找上一讲那么复杂的案例了,看一下这个简单的协调博弈,如
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But we'll use this over time but the percent sign essentially gives you the remainder.
在以后我们会用到,%给你的是余数。
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So that means that we don't have to worry about things like wave functions when we're talking about Lewis structures, but because they're so simple to use and because they so often predict the electron configuration of molecules accurately, we end up using them all the time in chemistry, so it's very valuable to know how to draw them correctly and to know how to work with them.
因此这也就意味着我们在讨论路易斯结构的时候,不需要担心波函数之类的东西，但是由于路易斯结构不仅简单易用,而且用它来预测分子的电子排布,经常可以得到非常精确的结果，结果我们在化学中一直都在用它，因此知道如何正确地画出并运用,路易斯结构是非常有价值的。
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