Today,I will tell about expressions using other numbers.
VOA: special.2009.07.26
I mean, these are huge, huge, numbers that humans are now using to protect their data.
我的意思是它们是非常,非常巨大的,数字,用来为保护我们的数据。
This might be 1 in 100, 000, 000, 000 or something like that; don't write down the numbers I'm just using that for illustration.
是大约是一比一千亿那么少,不用记这个数字,我只是打个比方而已
Simmons say Havana has long relied on short wave radio to send encoded messages using a system that converts letters into numbers.
VOA: standard.2009.06.06
So we can completely describe an orbital with just using three quantum numbers, but we have this fourth quantum number that describes something about the electron that's required for now a complete description of the electron, and that's the idea of spin.
所以我们可以用3个,量子数完全刻画轨道,但我们有这第四个量子数,来完整的,描述电子,这就是自旋的概念。
So I gave you some numbers I made up actually a long time ago, but since I've been using this game in class, somebody went out and checked.
我列举的数字都是我很久前编出来的,在我需要在课上引用数字的时候就有了,有人还为此做了调查
Pick any two perpendicular directions Then the same entity, the same arrow which has an existence of its own, independent of axis, can be described by you and me using different numbers.
选取两个互相垂直的方向,这样同样的物体,同一矢量,并且是独立于坐标轴而存在的,可以被你和我用不同的数字来描述
So, using the terminology of chemists, which is a good thing to do, because in this course we are all chemists, we want to make sure that we're not using just the physical description of the numbers, but that we can correlate it to 1 0 0 what we understand as orbitals, and instead of 1, 0, 0, 1s we call this the 1 s orbital.
我们最好学会,利用这些化学术语,因为我们这课,就是关于化学的,我们,不仅要知道,这些数字,的物理描述,还要能把它,和我们知道的轨道联系起来,我们叫它。
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