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When you're driving in your car, there's a needle and the needle says 60; that's your velocity at this instant.
当你在开车时,有一根指针指着60,表示你这个时刻的速度
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And I just got a box lunch and there was a strange chocolate bar that I got.
我得到了一盒午餐，里面有一根很奇特的巧克力棒。
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Suppose I had a rope, that stretched from that into the room, all the way across-- to this end of the room.
假设我有一根绳子，从屋子的这一端，一直伸展到-,屋子的这一端。
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We only have the one bond so the actual HF molecule is polar, it has a net dipole.
但HF中只有一根键,所以分子也是极性的而甲烷中有一个网状偶极。
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If I strike you in a vulnerable place with a stick that has a bronze butt on it, it could well kill you.
如果我用一根有铜质尾部的棍子,刺你的软肋的话,很可能就是一击必杀
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There's different types of the root that you can get called the bitter and the sweet.
这些根有不同的类型,被称为苦的和甜的。
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Would she have imagined that the world famous whatever remembered how many strings were on the lyre on the bench beside the girl on the label of the cigar box he'd stated at in the tool shed at age ten while she, age eleven.
她能想象到这个世界闻名的诸如此类的人,竟然记得当她11岁，他10岁时在工具间里盯着看的,那雪茄盒上的标签上的姑娘身边,长椅上的竖琴有几根弦吗。
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They are going to accompany particles surely as every quadratic equation has two solutions.
他们是成对的粒子,正如每个二次方程都有两个根一样
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In these studies, they put a chimpanzee in a room and there's a lever.
在这些实验中，黑猩猩被放到一个房间，房间有根杠杆。
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And so, we have this cartoon. Again, we have an open beaker and a candle, and we're putting only heat into this beaker, T2 and the temperature goes from T1 to T2.
好的，我们要再次利用这幅图，这有一个敞开的烧杯和一根蜡烛，我们对烧杯加热，温度从T1上升到。
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It's loaded with phosphates which are negatively charged.
NA分子上有很多带负电荷的磷酸根
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So, for example, let's look at thiocyanate ion, we have c s and n.
比如，让我们来看一下硫氰酸根离子，我们有碳，硫和氮。
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But the mathematicians told Dirac, "You cannot ignore the negative energy solution because it tells you there's a second solution and you cannot throw them out."
但数学家们告诉狄拉克,你不能忽略负的能量,因为数学告诉我有两个根,你不能随便丢掉
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But of course, if you were a simple perceptual creature, you would just see that there'd be a bar on top and a bar on the bottom.
如果你只是个拥有感知的简单生物,你只会看到在顶端和底端分别有一根木杆
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Imagine there's somebody in 2050 and we ask, "Is that Shelly Kagan?"
想象一下,2050年又有个人0,我们会问，他是不是谢利·凯根“
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When you see a display like that, what you assume is there's a bar there, and what that means is there's something in the middle that you've never seen before.
当你看到这样的演示时,你已经假定那里有一根木杆,也就是说中间的部分,有你之前所未曾见过的物体
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What makes it true that the person lecturing to you next Tuesday is Shelly Kagan, the very same person, what makes that true is that it's the very same soul.
那个下星期二给你讲课的,还是谢利·凯根,和现在是同一个人，所需要的条件是,有同一个灵魂。
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I got 3 kg and I have a rope.
有一个 3 千克的物体和一根绳子
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Now we really do have two ropes.
现在真的有2根绳子。
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Here's a piece of chalk.
这有一根粉笔。
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There's four candies there, and you say, "This is Charlie in the middle.
那儿有四根蜡烛,然后你说,"查理在中间
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He was trying to describe electrons, but the theory said there are two roots in the quadratic equation and the second root is mathematically as interesting as the first one.
他当时只是想去描述电子,但是数学理论告诉我们,二次方程有两个根,而第二个根在数学上和第一个根一样有趣
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And it turns out the second solution, with negative energy, was when the theory is telling you, hey, there are particles and there are anti-particles, and the negative energy when properly interpreted will describe anti-particles.
结果,后来证明,第二个根,也就是能量为负的那个根,正是理论的关键,世界上既有粒子,也有反粒子,负能量就是用来解释反粒子的
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If I had a third axis, I would draw a k, but we don't need that.
如果有第三根轴,我可以画一个矢量 k,但我们现在不需要它
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