So we started with 10 valence electrons, we used up 8 of those electrons in terms of making bonds.
我们一开始有十个价电子,然后用掉了八个电子来成键。
and then use the proceeds, use the profits that you make from selling the product to make the product better.
然后用得到的钱,用销售产品的收入和利润来改进产品。
And then your hostess walks in with the turkey in a tray, and says, "I killed the last cockroach."
然后主人用托盘托了一只火鸡进来说,我刚刚把最后一只蟑螂拍死了“
Basically what he did is he took a very thin metal foil and he bombarded it with charged particles.
简单的说他做的工作是,用一张非常薄的金属箔,然后用带电的粒子轰击它。
And then since we have my red laser pointer, we will also try with the red laser pointer, which is centered at wavelength of 700 nanometers.
然后因为我们有我的红色激光笔,我们也可以用它试一下,它的波长集中在700纳米处。
You divide and you find it's 9 and you say, "Okay, I know what to do with Newton's laws."
除一下,会得到 9,然后你说,"好了,我会用牛顿定律了"
Remember we had in that one piece and then there was a modulation tying them together, but those were completely different sentiments.
记得吗这个片段,然后,这两段音乐用一个转调相连接,但是表达了截然相反的感情。
And so what I was hinting at earlier when you put semicolons in the wrong place, and then proceed to have curly braces around arbitrary lines of code, you're creating an even more local scope there, which is generally not the right intended behavior.
在之前我暗示了,当你把一个分号放在错误的地方时,然后开始用花括号,括上任意行的代码,你在那里创建了一个局部范围,那个不是故意的行为。
Dudley offered a prayer, he told the boy his time had come, and he killed him with a pen knife, stabbing him in the jugular vein.
达德利为派克做了祷告,并告诉派克他的时辰到了,然后就用小刀割破他的颈静脉杀死了他。
And then armed with all of that, you sort of do your best.
然后,用这些知识武装好自己之后,你就能做到最好
It involves putting a needle, a fairly large needle into usually one of the pelvic bones and collecting marrow from which is tissue that's deep inside those bones.
先要用针头,相当大的针头刺进你的盆骨,然后进行收集,这些在骨头深处的骨髓
But please try and look at--somebody's not looking at it, because they're using it as a fan here-- So look at Game 1 and fill out that form for me, okay?
请大家看下游戏1 我知道有人没看,他们用那张纸扇风呢,快浏览下游戏1 然后填完 好吗
They must be looking at some measure of the value of the company and dividing by the number of shares and then that gives them some idea of what the share is worth.
他们必然会对公司的价值有一定衡量,用其除以股票数量,然后大致得出每股价值
and they reply in German, "Yes, I'm French," that doesn't--language doesn't necessarily tell you how people feel about their identity. Some sage once said, I don't know who it was, but I love this expression, that a language is a dialect with a powerful army.
然后他们用德语回答,"我是法国人",不一定--语言不一定能代表,对自己的身份认同,有个哲人说过,我忘了是谁,但我特喜欢这句,说语言就是有强大军队撑腰的方言
And Piaget's claim was one reason why they're surprised at peek-a-boo is you go-- you look at a kid, the kid's smiling and go, "Oh, peek-a-boo," and you close--and you cover your face and the kid says, "He's gone."
皮亚杰认为,他们对捉迷藏感到惊奇的一个原因便是,你凭空消失了,你看着婴儿,婴儿会对你笑,然后你和他玩捉迷藏,"躲猫猫",你用双手遮住了你的脸,婴儿会以为,"他不见了"
I can use that to return values, which I can then use elsewhere, which I did-- and if I just come back and highlight this-- inside of that computation.
我可以用它来返回值,然后我可以在别的地方使用这些返回值,正是我做的--如果我回过头来,在高亮一下这个--在这部分计算内部。
And we can just extrapolate in a straight line We before saw some examples where I had an algorithm to generate points, and we fit a curve to it, used the curve to predict future points and discovered it was nowhere close.
我们可以干脆用一条直线来描述它,我们之前看到在一些例子中,我用一个算法去生成一些点,然后用一条曲线对它进行拟合,然后用这条曲线来预测未来的点,最后却发现结果完全不对。
And I want to basically try and use these things to do something with them.
我想要试试然后,用这些声明来进行一些操作。
Once you've got that, you can do minus 7 times a vector Just take the vector, multiply it by Pi and flip it over.
明白这点之后,你就可以计算-7乘以矢量,只需用 π 去乘以那个矢量,然后将其方向调转
But I want to start in every example, in every situation that I explain to you, with the simplest example, and slowly add on things.
所以我会都从最简单的例子讲起,在我给你们解释的每一个例子里,都会用最简单的例子,然后慢慢增加难度
I want to derive the last result in another way, then I will stop, and that's pretty interesting because it tells you the use and abuse of calculus.
让我用其他方法解答最后一个问题,然后今天就到这 这是一个挺有意思的题,因为它展示了微积分的正确用法和错误用法
So, just give me a little bit of time to find out maybe by soliciting e-mail responses from you what would be a good time for my office hours.
所以,给我点时间考虑一下,或许我会用电子邮件发一个小问卷调查,然后我来决定什么时间最合适
Well,what I'd like to do now is move here to a couple of additional pieces, and we're going to use an example of pop music now with a three-chord chord progression.
那么,我们现在要做的是再看其他一些音乐,然后我们会用流行音乐的例子来看看三和弦进行。
Then, I bring the elephant and I pull the spring by the same amount and I find the acceleration of the elephant and the denominator is obviously the mass of the elephant.
然后我再找来大象,用相同的力去拉弹簧,大象就具有了加速度,很明显,分母就是大象的质量
I want to play this one with the piano a little bit and I ask you the name of the composer of this piece-- it's a bit less well known but maybe not-- what it's called and when in the history of music it was written.
我会用钢琴演奏一小段,然后我会问它的作曲是谁,这曲子有点不太知名,也说不准,它叫什么,在音乐史上是什么时期创作出来的
But I want to pause for a moment and note that this assumption that the way to think about the value of the combination as just a matter of adding the goodness of life and the badness of death and just summing them that way-- that may not be right.
但我想暂停一会并指出,这个用加上生命的好处,和死亡那个的坏处然后求和的方式,去考虑这个组合的价值的假设-,可能并不是正确的。
C So here I'm declaring a variable called c, and I'm pretty much translating the formula from the slide using the characters on my keyboard to a floating point value.
这里我声明了一个变量,然后我把那个幻灯片上的公式,用键盘上的字符翻译成了,浮点数值。
And, in fact, if you take the jaws of a powerful magnet and pour liquid oxygen in between the jaws, the oxygen will stop and will sit in the jaws.
实际上,如果你用一块,具有较强磁力的颚型磁铁,然后把液氧倒在颚型磁铁的中间,氧气会停在颚型磁铁中。
OK, so far though, I've just shown you what happens inside a peace a code. It raises an exception. It goes to that accept clause. We don't have to use it just inside of one place.
好了,我已经给你们看了,代码内部发生了什么,它报了一个异常,然后就到了处理的片段,我们不该就在一个地方用它。
Before that, people used to put papers in piles, tie them up in ribbons, and put them on bookshelves or in drawers.
在此之前,人们经常将纸堆起来,用丝带卷好系上,然后放在书架上或是抽屉里。
应用推荐