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But I think it is something that we would need evidence for I'm very much an empiricist on those things.
但我觉得我们需要证据来证明,在这方面，我真的是一个经验主义者。
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Realize that there's an inevitably challenge for us and actually helping people in this kind of context, especially as the deadline really approaches.
这对我们来说是一个不可避免的挑战,需要在这种环境下帮助人们，特别是当最后期限要接近了。
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And because, of course, we have this carbon here what you end up doing is adding a carbon to your molecule.
因为，当然，我们这里有一个碳,接下来需要做的就是在你的分子中再加上一个碳。
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Ultimately, we need a filter or a lens to talk about then what is ultimately in control.
最终，我们需要一个视窗，一个镜头,来讨论什么是最终的控制者。
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So, somehow we have to figure out a way to take orbitals that are non-symmetric, and convert them into orbitals that are symmetric.
所以有时我们需要找到一个方法,让不对称的轨道，转变为对称的轨道。
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For that experiment, the constraint, so we need a constraint here, right, we need a constraint here. Right?
对于这个实验，我们需要一个限制，对吗？,我们需要一个限制？
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The message I'm trying to get to here, because I'm running you right up against time, is I have to be careful about what's a primitive step.
我想说的事情是，因为我正在跟大家讲算法时间复杂度，我们需要注意一个基本步骤的定义,如果我可以假设。
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We need to throw in an extra clause to deal with branching, splitting cases,of the sort that I've just been talking about.
我们需要加一个额外条件，来处理我们上述的分歧案例。
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I think we need a whole electricity distribution system, which is more efficient and bigger, more flexible and more appropriate than we have.
我们需要一个更加有效,更加庞大，更加灵活的配电系统，的配电系统。
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I need one more piece of notation and then we can get back to having some fun.
我需要再引入一个符号,之后我们再继续研究
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Then there's one other that we have to know about, it's called the leading tone.
还有一个音符我们需要了解,我们称之为导音
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So, people like Hobbes thought, "Well, we need a really strong state."
同意霍布斯观点的人认为,"我们需要一个十分强大的国家"
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But remember that we need to multiply it by the volume here, the volume of some sphere we've defined.
但记住我们需要把它乘以体积，乘以一个我们定义的壳层的体积。
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Let's re-draw this, so it looks a little bit neater, where we have a triple bond in the middle instead, and again, we need our negative 1 charge there.
让我们重写这个，这样看起来更整洁一点，我们有一个三键在中间，同样地，我们这里需要一个负电荷。
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Why don't we define a new unit of energy That isnear to what we have to measure?
为什么我们不确定一个新的能量单位,它近似于我们需要测量的一些量？
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We're about to start talking about the elements of the language, but to do that, we also need to separate out one last piece of distinction.
我们将会开始讨论,语言的元素，但是为了达到这个目标，我们还需要去做,最后的一个区分。
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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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And that implies that since the quantity we want is given by this quantity, which is zero times a constant, the quantity we want is also zero.
因为我们需要的量,是由这个量乘以一个常数，因为这个量是零，因此我们需要的量也是零。
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So what that means is that's how much energy we would have to put into a hydrogen molecule in order to get it to split apart into its two atoms.
它的意义,就是我们需要向一个氢分子中注入这么大的能量,才能将它分解成两个独立的原子。
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So, if we kind of think about the numbers we would need, we would actually need a velocity that approached something that's about 10 to the negative 30 meters per second.
所以如果我们稍微想想，我们需要的数值是多少，我们需要一个,大约为10的负30次方米每秒的速度。
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If instead we had a positive ion, a cation, what we would have to do is subtract 1.
如果我们有一个带正电的离子，一个正离子，那我们就需要再减去一个。
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Now remember, we went through before how it's a state function but to calculate it, you'd need to find a reversible path, along which you can figure this out.
请记住，我们不需要知道它是怎样的一个态函数,只计算就可以了，你需要找到一条可逆路径，沿着这条路径就能算得这个结果。
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And the truth is that yes, this costs energy, we're going up to a higher energy state.
事实上，它需要消耗能量，我们到了一个更高的能量状态。
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All right. So let's do an in-class problem, and this will be done with zinc.
好的，让我们做一个课堂上的问题，这个问题需要用锌来完成。
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We'd have to figure out a way to achieve octet stability by electron transfer.
我们需要找到一个可以通过电子转移,而实现八隅体的方式。
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You also need to bring a calculator, we'll be solving problems that involve calculations.
你还需要带一个计算器，因为我们会需要解一些涉及计算的题目。
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Once we can do that we can go on and say okay, what actually is a wave function, but first we need to know how to describe which ones were talking about.
我们就可以继续并说波函数到底是什么,但首先，我们需要知道，如何描述,我们说的,是哪一个波函数。
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So, what we say here is we need to take a step back here and come up with an approximation that's going to allow us to think about using the Schrodinger equation when we're not just talking about hydrogen or one electron, but when we have these multi-electron atoms.
所有我们这里要说的是,我们需要退回一步,做一个近似,那样可以使我们用,薛定谔方程来考虑,让我们不是仅仅在讨论氢原子或者,一个电子的时候，而是多个电子的原子。
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Remember, we need those three quantum numbers to completely describe the orbital.
要知道，我们需要三个量子数,才能完全描述一个轨道。
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So if delta v is negative, in this case delta v is negative, OK, delta v is negative, pressure is a positive number, negative times negative is positive, work is greater than zero.
也就是当活塞,压缩气体的时候，做的功是正的，按照这一规定,我们需要在这里，加上一个负号，这是习惯规定。
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