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So, when we get really close together, granted, there is a net positive negative charge with a Coulombic force of attraction.
当它们真正离得很近时，假设有一个带正负电的电荷,带有库仑引力。
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And then the potential energy, the energy is stored here due to the coulombic force of attraction between the electron and the nucleus.
然后说势能,位能其实就是,由电子和原子核之间的库仑引力而形成的能量。
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So, remember when we talk about Coulomb force, what's holding the nucleus and the electron together, there's 2 things we need to think about.
还记得我们在讨论库仑力的时候，提到是什么将原子核与电子束缚在一起时，有两点需要考虑。
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Coulomb discovered the Coulomb's law, which is a repulsion between charges.
后来库仑发现了库仑定律,才知道这是电荷之间的排斥作用
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And so this is really a mechanical term, if you like, and this is electrostatic or coulombic.
所以说这真算是一个力学问题，你愿意的话，也可以说它是,静电学或库仑定律方面的问题。
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So, the Coulombic forces, Coulombic or electrostatic forces draw.
库仑力，库仑或者静电力被提到了。
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But once in awhile, one of these plus twos comes in almost on axis, and it gets whipped around by the Coulombic repulsive forces.
但是偶尔一个带两个正电荷的粒子,以接近于轴的位置进入，会快速的移动到周围,由于库仑斥力的作用。
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These are huge energies, Coulombic forces, high melting points and boiling points.
这里有巨大的能量，库仑力，高熔点与高沸点。
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And we saw last day that we have a Coulombic force of attraction which you have seen before.
我们昨天学习到,我们有库仑引力,之前你们学过的。
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We know what an electric field is, it's just a space through which a Coulomb force operates.
我们知道，电场不过,是库仑力的作用空间。
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Coulomb's law says the negative will be attracted to the positive, and the atom will collapse.
库仑定律说,负电荷会被吸引到正电荷上来，原子会坍塌。
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With impunity. If I use coulombs here and volts here, I don't even think.
没有关系，如果在这里用库仑和伏特，我想都没想。
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If I multiply these two, what is the coulomb times a volt?
如果我把这两个乘起来，库仑乘以伏特是多少？
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Infinity is the force when we're thinking about it and our brains, negative infinity is when we actually plug it into the equation here, and the reason is the convention that the negative sign is just telling us the direction that the force is coming together instead of pushing apart.
说力有多大时，我们想到的,是无穷大，而方程解出来的,是负无穷，这是因为习惯上,我们用负号表示力的方向,是相互吸引而不是相互排斥的,所以我们可以用库仑定律。
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When you go into the Coulombic term here, 3*2 instead of one times one, it's three times two.
当你想到库仑力时，和1*1相比，这是。
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The smallest charge I could put here would be 1.6 times 10 to the minus 19 coulombs.
能放在这里的最小电荷,是1。6*10^-19，库仑。
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Or just to be pluralistic in our language, coulombic force.
换种说法，即库仑力。
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It plays a big role in gravitation, in the Coulomb interaction.
它在引力和库仑力中都起着重要的作用
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It could form in any direction because the Coulombic field is radial in all directions.
能够在任何方向形成,因为库仑产在全方位发生分散。
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And now the force, in its most general term / is q1q2 over 4 pi epsilon zero, which is the conversion factor r squared.
库仑力的最基本形式,就是，其中r是一个变量。
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What is the unit of charge in SI? Coulomb.
国际单位制中的电荷单位是什么，库仑。
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So the Coulombic forces are much, much greater.
库仑力会更强。
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I just plug into the Coulomb's Law.
这时再引入库仑定律。
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This is not a Coulombic force.
它不是库仑力。
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They're Coulombic forces, end of story.
库仑力就是这个故事的结尾。
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So, let's think qualitatively for a second about what that means or what the real meaning of that is. What that is telling us is that according to Newtonian mechanics and Coulomb's force law, is that the electron should actually plummet into the nucleus in 0.1 nanoseconds.
让我们定性的想想,这意味着什么,这告诉我们,根据牛顿力学,和库仑定律，电子,在0。1纳秒内,就会掉到原子核里面。
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If you look at the ground state in two different systems -If you look at the ground state which is n equals one, think about this, if I increase the proton charge, the Coulombic force of attraction is greater.
如果你观察两个不同系统的基态,当你观察n，等于1的基态时，试想一下，如果我增加质子电荷，相互吸引的库仑力就会更大。
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