So you may take this course ultimately via pass-fail or letter grade and I am more than happy to chat with you about the implications and to sign any paper work such as the stack here that you might need.
你可能希望这门课采用及格-不及格分制或者分数制,我很乐意跟你聊下,两个打分制各自的含义,也可以帮你在这里签到。
Are your best friends also here?
你最好的朋友也在这里吗?
The fact that when you go in a circle, you accelerate is what we're learning here, coming from the fact that velocity is a vector and its change can be due to change in the magnitude or change in direction.
而当你做圆周运动时你也在加速,这是我们在这里所学到的,原因就在于,速度是一个矢量,其变化可以通过改变模长,或者方向来实现
You could do the same thing in mammals and here's one quick example of that, using a different kind of a vector, but inserting a gene into the fertilized egg of a mammal, in this case, a sheep.
你也能在哺乳动物上做到同样的效果,这里有另一个简短的例子,用了另一种载体,把一段基因注入哺乳动物的受精卵中,在这里我们用了绵羊
Now, the one that we're most interested in ANS is the one where, in fact, it gets out ANS, so you see down here in the code, there's a spot where it's going to return the value of ANS, which is what we want, right? That's the thing that holds the value that we intended to have.
现在我们最感兴趣的是这个,事实上它返回的是,所以你看这段代码,在这里返回ANS值,也就是我们想要的,对吧?,它就承载了我们想得到的值。
If you zoom in up top, which I can't quite do with a keynote here, it says, "This last minute shopping, bargain hunting."
如果你想追根究底,我也不能,在这里做一个主题演讲,它说,“这是最后一分钟购物,特价商品大甩卖“
And we can simplify this expression as saying negative e squared over 4 pi, epsilon nought r squared. Epsilon nought is a constant, it's something you might see in physics as well.
也会遇到它,在这里,你可以就把它,理解为一个转换系数,我们需要做的。
While I was there, many many of people said to me: look, we want you to succeed we believe you mind your doing, we know you have good intentions and we hate these people when they were in power, but we have to live here, t succeed, and many people have come here and not succeed before you.
当我在那边的时候,很多人对我说:,我们想要你成功,我们知道你很在意你所做的事,我们知道你是好意的,恨这些掌权的人,但是我们得在这里生活,如果你不能成功,在你之前也有很多人失败了,and,if,you,can’
It could be the pair of none, none, it could be the pair of, you know, whatever the answer was that we put up there. That value comes back out and is now available inside the scope of Barnyard. OK. And Barnyard then uses that. Question?
也可以是,你知道,任何我们在这里得到的答案,这个返回的值在Barnyard范围内,就可以使用了,然后Barnyard就使用了这个值,有什么问题吗?
This is incredibly important because if you picture having a double bond in a very large molecule, you could have all sorts of other atoms off this way and all sorts of other atoms off this way, and you can picture the shape would be very different if you have one confirmation versus another confirmation.
这是十分重要的,因为如果你想象在一个大分子里有一个双键,你可以在这里有各种各样的其它原子,在这里也有各种各样的其它原子,你可以想象一个构型,和另外一个构型之间的形状差别是非常大的。
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