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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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so first of all, Cal Tech has a very strong group in gravitational wave physics,
首先，加州理工引力波物理的师资很强，
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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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Why should the amount by which you're attracted to the Earth be also a measure of how much you hate acceleration?
为什么物体受地球引力的大小,恰好能衡量物体加速的难易程度呢
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We are bodies in motion, and who cannot help but obey the law or the physics of attraction and repulsion.
我们处在运动状态，这是无法控制的，只有遵循规律,或者引力和斥力的规律。
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p So to jump from the 2 s to the 2 p, takes more energy than we can actually compensate with by increasing the pull from the nucleus.
也就是，从，2，s，跃迁到，消耗的能量超过了,由于原子核的引力增强而补偿的能量。
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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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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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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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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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Positive energy is repulsive, and negative energy is attractive.
正的能量值代表斥力，负的能量值代表引力。
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But gravity has a remarkable property that the pull of the Earth is itself proportional to the inertia of the object.
重力有一个显著特征,即地球的引力,与物体的质量成比例
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It's really amazing that what Newton did in the case of gravity was to find the expression for this.
这一点非常神奇,牛顿在引力方面的研究,只是为了找出这个的表达式
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Everything -- gold, silver, diamonds, particles -- everything accelerates the same way in a gravitational field, due to this remarkable fact.
所有东西,金,银,钻石,粒子,所有东西,在引力场作用下都以相同的方式加速,原因就是这个显著的事实
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Newton finds out there's a force of gravity acting on everything.
牛顿发现所有的物体都受到引力作用
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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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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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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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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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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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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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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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