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It's Huxley that said woe to the slaying of a beautiful theory by an ugly fact, nuclear collapse.
赫胥黎说过,一个美丽的理论,被丑陋的事实所抹杀，核坍塌，真是科学的悲剧。
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Diatomic mean it's di atomic, it's made up of two atoms, and homonuclear means that those two are the same atoms.
双原子意味着它是两个原子，它由两个原子组成，同核意味着这两个原子时相同的原子。
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Four times the number of pigs plus two times the number of chickens, assuming they're not next to a nuclear reactor, is 56.
其它还有什么呢？,4倍的猪的数量加上两倍的鸡的数量,考虑到它们不是住在核反应堆旁的。
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So these devices, when I was a youngster, were colloquially known as "atom smashers", because they have the capacity to actually break these and have them reform.
这些设备，当我还年轻的时候，它们在口语中被叫做核粒子加速器，因为它们有能力,将这些破碎并重新形成。
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We have theories--mathematical theories-- that lead us to devise financial structures, which are complicated devices just like engines or nuclear reactors.
金融学中的理论,数学理论,能帮助我们构造金融工具,金融工具就像发动机,或者核反应堆一样,都是复杂的工具
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And that's essentially what we saw people have more nucleus accumbens activation priority choice " they are more likely to choose that stock.
这就是我们得到的结果,在作出选择时，受试者的伏隔核活动越多,他们就越有可能选择“股票。
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Studies using imaging techniques like CAT scans, PET, and fMRI, illustrate that different parts of the brain are active during different parts of mental life.
应用电脑断层扫描,正电子发射断层扫描,以及功能性核磁共振成像,等成像技术的研究,表明不同的心理活动,会导致不同大脑区域的激活
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Some form what are called megakaryocytes which become platelets, which are responsible for clotting, for forming a barrier if your circulatory system gets injured so you don't bleed.
还有一些类型的细胞称为巨核细胞,生成有凝血作用的血小板,在你的循环系统受损时形成止血屏障
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The MRIs per capita is about half of that of United States, in Britain, which also has a government health program, there is only about a fourth in the United States.
加拿大核磁共振医疗设备,的人均使用量,只有美国的一半，在英国，也有一个政府医疗体系，只有美国的四分之一资金。
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And we can actually better visualize this if we plot how that energy changes as a function of internuclear distance.
而我们就能更清楚地看到这些，如果我们画出,能量随核间距的变化曲线。
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So where we had left off with was we'd fully discussed up to the point of considering homonuclear diatomic molecules, so molecules that both have the same nucleus.
我们上次,讲到了我们,已经讨论过同核双原子分子，也就是有相同原子和的分子。
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So, when we think about a bond length, this is going to be the length of our bond here, that makes sense because it's going to want to be at that distance that minimizes the energy.
因此，当我们考虑一个键的长度的时候，这就应该是我们的键长，这是合理的,因为体系会在核间距达到这一距离时,能量到达最小值。
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Further, the nucleus is assumed to be the seat of the essential part of the mass of the atom, and to have linear dimensions exceedingly small compared with the linear dimensions of the whole atom."
进一步的，核被认为是,原子主要质量所在的地方，和整个原子线性尺度相比,核具有很好的线性尺度“
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Then we're going to actually use MO theory to describe bonding within these molecules, and we'll start with homonuclear diatomic molecules.
然后我们要利用MO理论,来描述这些分子内的成键，我们要讨论同核双原子分子。
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And, it involves a single electron orbiting a positively charged nucleus.
包含了一个单独的电子轨道,一个带正电荷的核。
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And here is what we saw, here is our old friend - the nucleus accumbens.
这里是我们观察到的结果，我们的老朋友，-，伏隔核。
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What you see is a bump up in activation in this nucleus accumbens in this area right when people see the product long before they are going to make a decision which continues.
这张图是受试者在见到商品之后,这一区域的伏隔核活动骤然攀升,而这种情况早在受试者作出决定之前,就已经发生，而且持续了下来。
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To some extent, if we put you in an fMRI scanner and observed what you're doing in real time, by looking at the activity patterns in your brain we can tell whether you are thinking about music or thinking about sex.
某种程度来讲,如果我们对你进行,功能性核磁共振成像扫描,观察你的实时活动,通过观察你的大脑活动模式,我们可以看出你是想到了音乐,还是想到了性
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So even though we see a nodal plane down the center, I just want to really point out that it's only when we have a nodal plane in the internuclear or the bond axis that we're calling that a pi orbital.
虽然在中间有个节面，我想要指出的是,只有节面在核间轴,或者键轴上时,我们才叫它π轨道。
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Heck,he deserves to have his name on the board, Marsden So, Marsden concluded by his analysis that the radius of the nucleus, and this is Rutherford, by the way, coining this term.
见鬼，他的名字配写在黑板上，马斯登,马斯登根据分析得出,核的半径，这是卢瑟福，插一句，创造了这个术语。
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If we look at this configuration, what we say is all of the electrons in these inner shells are what we call core electrons.
如果我们看到这个构型，我们所说的是,所有的内层,都是核电子。
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And just to give you a sense, if you do a cross-cut of this, you cannot show it from this angle, but it should really be sort of a dumbbell shape with the nodal plane in between the two nuclei.
告诉你们这些就是给你们点概念，假如你们把他横切切开，不能从角度上展示，但它还是会保留几分哑铃的形态,以及在两核之间的节面。
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And I want to point out the difference between core electrons and valence electrons here.
我想指出的是,核电子和价电子,之间的区别。
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They say homonuclear. So this is purely covalent.
而是用的同核，嗯，这是完全共价的。
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So, that's their first objection, nuclear collapse.
这是他们的第一条反对意见，核坍塌。
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Those two examples I just gave you, one had to directly inject a gene containing vector into the pronucleus of a fertilized egg and you don't have that opportunity in adults.
在我刚给出的两个例子里,一个必须得将带有目的基因的载体,直接注射到受精卵的原核中,这在成年人身上行不通
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So, if we look at this graph where what we're charting is the internuclear distance, so the distance between these two hydrogen atoms, as a function of energy, -- what we are going to see is a curve that looks like this -- this is the general curve that you'll see for any covalent bond, and we'll explain where that comes from in a minute.
因此，如果我们来看一看这幅曲线图,这里我们画的横坐标是核间距，也就是这两个氢原子之间的距离，纵坐标是能量，我们看到的这是能量关于核间距的曲线-,这是一条普遍的曲线，在研究任何共价键时你都会遇到，我们马上就会解释一下它是怎么来的。
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Nuclear power, for example, may be our salvation when we run out of oil--or virtually run out of oil-- it seems to be coming up over the next several decades-- we're going to have to do that, we're going to need nuclear power.
比如说核能,在石油资源枯竭,或快要枯竭的时候,也许再过几十年,这一天就会来临,核能可能成为我们的救世主,那时我们就需要核能源了
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When we're talking about r for internuclear distance, we're talking about the distance between two different nuclei in a bond, in a covalent bond.
当我们说，r，代表的是核间距的时候，我们讨论的是一个距离,在一个键--一个共价键的两端的原子核之间的距离。
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That's why in the earlier models of the atom, they're not horrible to sometimes think about just each n value as a little ring around.
这就是为什么在早期原子模型中，人们没有感觉到把每一个，n，都想象成,一个绕核的小圆圈有什么不妥。
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