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If current rates continue, that number could reach one billion in this century.
VOA: special.2010.05.31
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Well, if we actually want to represent something like the number 7, well in binary, not actually in decimal like this.
如果你表达,类似于7的数字，在二进制中，它和十进制可不太一样。
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So if you had some number back in grade school like 123, well, why do we express this as 123?
在小学，像123这样的数，为什么我们要表达成123这样的呢？
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And if it is going to be a standing wave then this must be an integral number of wavelengths.
如果这有个驻波的话,那么周长就是个整数。
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So if in fact I wanted to make sure this was a number, I should have done something like either try and convert it to a number, which of course failed here, or put in a check to say where it is.
因此实际上如果我想确保,这是一个数字的话，我们的课程上的代码,在这里失败了，你或许应该在这里，放一个检查的东西。
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So our last question we ask is what's the total number of photons emitted if we give this given intensity for 60 seconds?
最好的问题是如果我们,按照给定的强度照射60秒,那么总的光子数是多少？
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If it moves a lot--either way from the mean-- then this number squared is a big number.
如果距离均值的变动很大,那么这个平方数也会很大
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You know, my experience with this is, when you go from having a small number to a really large number of people, if you don't a process, it becomes real chaos.
我的经验是，公司的员工由很少,增长到很多，如果没有一个程序，很容易乱套。
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Then she would collect their story and she would say, "If you have any questions about this experiment, " "here is my phone number."
然后她收集所有的故事并说，“关于实验，如果有任何问题“,尽管给我打电话”
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This pool, twelve very large studies, if you put all the number of subjects in those studies together, it would come up to a million and a half people.
这项研究汇总了十二个大型研究,如果把所有研究的受测者数量加起来,将有一百五十万之多
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But I can add to this some number, like 96, that'll still have the property that if you take two derivatives, you're going to get the same acceleration.
但是我可以在后面加上某个数,比如96,经过两次求导你仍会得到,同样的加速度
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The difference the real difference is in what genes its expressing of the total number of genes in the human genome and therefore if it's expressing these unique this unique set of genes.
真正的不同之处是,在这些细胞中,表达的是人类全部基因中的不同基因,因此如果细胞表达的是,这组独特的基因
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As we all know, this only works if there is a pointee, which kind of gets back to rule number one.
众所周知，只有当有指针数据时，这个才起作用，这有点像第一条规则。
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So if we think about, for example, this red line here, which energy state or which principle quantum number do you think that our electron started in?
我们来看看，比如这里的这个红线，它是从主量子数,等于多少的能级发出的？
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There we go. Now if I do this, an infinite number of times, we should get roughly 50/50, but now we have the ability to do things only once in awhile.
开始，如果我们，不停地按这个按钮，我们大致会有一半的机会听到猫叫，但是我们每次只有一次按按钮的机会。
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And if you don't put a point but just put a number, this specifies the width of space that will be used by the number you're inserting there.
如果你不用点而只用数字，这个指定的长度是由,你插入的数字决定的。
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And then if you look at Archive Notes number one this is what you will see.
如果你们看存档笔记第一个,这就是你们会看到的。
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And I've done fib of 5, which is a small number. If we look at some other things, for example, let's get rid of this.
我已经计算了fib，这是一个小数，如果我们看看其它的东西,例如，让我们放开这个。
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Seventy-nine. In fact, if you add up each of these numbers, 9 you should get the decimal number 79 79 from this binary number here.
9，事实上，如果你把这些数字累加，你应该能从这些二进制中9,得到十进制数。
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We know we need to divide by 266, 266 but what we need you to help us with is to figure out this top number here and see how many particles are going to backscatter. So if the TAs can come up and quickly hand out 1 particle to everyone.
知道背散射的概率就可以了，我们知道要除以,但还需要你们来搞清楚,分子上的数是多少，有多少个发生背散射的粒子,助教们请过来,把这些球分给同学们。
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If you knew this was one kilogram, then the acceleration of the elephant, which will be some tiny number, maybe 100th of what this guy did; the mass of the elephant is then 100 kilograms.
如果已知这个物体的质量为 1 千克,那大象的加速度,会是一个比较小的数,可能是物体加速度的 1 / 100,大象的质量就是 100 千克
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So this is the percent error and what you see here is that if the number is below the zero line it means people underestimated the calories, and the bars that go above means people overestimated the calories.
这是百分比误差,你们看,如果数字低于零,这表示人们低估了卡路里,高于零表示人们高估了卡路里
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I mean, Avogadro -- I'm fond of his number, and he is, in fact, an interesting, if not frightening looking man this just didn't connect with me.
你想-Avogadro-我喜欢他的常数，而且事实上，他看上去很有趣，如果你不觉得他很吓人的话,我和这个就是不来电。
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Basically if you have a number that's P in this case, than the number is lower then that shows increasing level of statistical significance.
基本上如果P,这幅图里的数比0.05更小,数字越小,表示统计学显著性越大
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This might look a little cryptic at first, but it turns there is some very obvious patterns here, for instance. According to this chart, if you want to represent the letter A A in the so called ASCII system, what number do you actually use to do so?
起初，它看起来有点神秘，但你会发现它有一些明显的对应模式，这里就有例子，根据图表，在所谓的ASCII系统中,你想表示字母，你该用哪些数字呢？
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If you look at number of organizations that do this business, it comes completely reversed and it's credit unions that are the most important.
从这些金融机构的数量上来看,排行完全相反,信用合作社就成了最重要的
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If when x is low, y also tends to be low, then this will be negative number and so will this, so their product is positive.
如果x取值小,同时y值也小,这将是一个负值,这个也是负值,负负得正,结果是正值
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- So in fact, if you want a super long number -- -- let me go ahead and reopen this program -- long you could declare long.
所以事实上，如果你需要一个超级长的数字-,让我们继续重新讨论这个问题-,你可以声明。
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I can certainly try to write the number 13 there, but bam, my program very likely will crash if this chunk of memory was not given to me previously by the operating system and maybe it is owned by the operating system.
我当然可以在那里写下数字13，但是“嘣“,如果这块内存不是系统预先给我的,我的程序很可能会崩溃,可能这块内存,是系统本身使用的。
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If they type in bogus characters, it's going to yell at them and make them retry, and eventually I'm going to get handed back an int, which I'm storing in n. Well, if I actually want to judge this number based on its magnitude, well, I can say now, "If n is greater than or equal to one."
如果他们键入了不合法的字符，它将对他们叫喊,然后叫他们重试，最终我将,得到一个int数，它是存储在n中的，好的，如果我的确想要根据它的量级来判定这个数字，好的，现在我可以指明，“是否n大于等于1“
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