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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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We will prove him wrong and show that we can really find it.
我们要证明他错了，证明我们能找到引力波。
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Because positing them allows you explain things about the rotation of the star or the gravitational fluctuations, what have you.
因为这样假定能帮助你解释,诸如星体运行,引力波动,等现象
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It violates gravity, but six-month-olds aren't smart enough to know that a block just stuck over here is also surprising.
因为它违背了地心引力,但六个月大的婴儿还是不够聪明,他们没能发觉突出的木块也是令人惊奇的
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And, that's given by the balance between the attractive force of the ions offset by the repulsive force in the electronic shells.
而那是由,在离子的电子层之间的,引力和斥力相互抵消得到的。
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The poet, after all, is subject to gravity in Frost, to the force of the earth.
这个诗人，弗罗斯特，终究还是受制于地心引力，受制于地球的力量。
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So, if we think about the force that occurs between a positively and a negatively charged particle, what we have is essentially a Coulomb force, so we can describe this as a force of attraction.
一个带负电的粒子之间，的作用力,这本质上就是库伦力，我们可以把它，描述成一个引力。
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You cannot tell the mass, because what you are doing now is appealing to the notion of mass as something that's related to the pull of the Earth on the object.
你无法测出质量,因为你现在所做的是把质量,用地球对物体的引力给替代了
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And actually like, this gravitational waves is one of the last proofs...
其实，这个引力波是最后的证据之一……
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There is a repulsive force, the attractive force between ions of opposite charge is offset by a repulsive force due to electron cloud interactions.
有一个斥力时,存在于电性不同的离子间的引力,是可以被抵消的，因为电子可以相互影响。
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There is a Coulombic force of attraction.
有一个东西叫做库伦引力。
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for he meant actually that we will never observe gravitational waves.
他的意思其实是我们永远无法观察引力波。
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If nothing is touching the body, there are no forces on it, with one exception which is, of course, gravity.
如果没有实体接触,那么它就不受作用力,当然一个例外那就是引力
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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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And we know as we go across a row in the periodic table, what's happening is that z effective or the effective pull on the nucleus is increasing.
而我们知道沿着周期表的某一行向右看，有效核电量,或者说原子核的有效引力是在逐渐增大的。
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Gravity is one force that acts on a body without the source of the force actually touching it.
引力是一种受力物体收到了力的作用,但却没有接触施力物体的力
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And there is this separation which is a balance of attractive forces because the chloride is net negative and the sodium is net positive, but both of them, regardless of net charge, have electrons.
这里有一个平衡,引力的平衡,由于氯离子带有负的净电荷,钠离子带有正的净电荷，但是它们两个，没有考虑净电荷，电子。
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Other is gravitational mass, which is the measure of how much you're attracted to the Earth.
另一个是引力质量,它可以用来衡量地球对物体引力的大小
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Not only did he formulate laws of gravitation, he also invented calculus and he also learned how to solve the differential equation for calculus.
他不仅找出了引力定律的公式,还发明了微积分,同时也得出了微分方程的解法
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So, let's first go with the attractive because you know this already.
我们先看一下引力的变化,因为你们已经知道这个了。
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It's not talking about the gravitational pull of the Earth on an object.
没提到地球对物体的引力
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And at very, very low separations, it's all repulsive.
当距离很小很小时，基本上只有引力。
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Whenever there is a force, it can be traced back to a tangible material cause, which is all the time a force of contact, with the exception of gravity.
如果有作用力,那它一定能找到一个明确的实体施力物体,也就是无论何时物体受的都是接触力,引力除外
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In fact, there's a property of gravitational fields anywhere, even in outer space, but there is some residual field between all the planets and all the stars in the universe, that the force on a body is proportional to the mass of the body.
实际上,这是任何地方的引力场都具备的属性,甚至是在外太空,在所有的行星和恒星之间,存在着某种剩余场,在这个场里作用在物体上的力,和物体的质量之间存在比例关系
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