The gravitational energy of electrons transforms into radiation in burst phase through bremsstrahlung of electrons.
电子的引力能通过电子的轫致辐射转化为爆发相的辐射能。
The conclusion runs counter to the alternate theory that the gas lights up as it cools to release gravitational energy--with no black holes in the picture.
该结论跟另外的一个理论相反，那个理论认为：气体冷却的时候会释放引力能，使气体亮起来，这种结构中没有黑洞。
Anyone who can follow their closing paragraphs on the relation between negative gravitational energy and the creation of the universe probably knows it all already.
要是哪位读者能看懂结尾处关于负引力能和宇宙创造的关系的话，那很可能他早就明白所有的理论了。
If we can change our position so it is more in line and more in harmony with gravitational energy, then our tendency to randomness, disorder, and deterioration will decrease.
如果身体的姿势和地球重力和谐起来的时候，身体的散满、无序、日趋恶化就会减少并改善。
In astrophysics, a gravitational action is the mechanism that describes how gravity can emerge from space-time being curved by matter and energy.
在天体物理学中，引力作用量描述了在被物质和能量弯曲的时空中如何形成引力的机理。
Astronomers infer their existence based on their gravitational influence on what little bits of the universe can be seen, but dark matter and energy themselves continue to elude all detection.
基于宇宙中观测到的微小万有引力作用，天文学家推断出它们的存在，但暗物质与暗能量本身仍在可直接探测的盲点区。
As these ripples, called gravitational waves, are produced, the star pair loses some of its energy, causing their orbits to slowly shrink.
当这种被称为引力波的涟漪产生时，这对双星就会释放出一些能量，结果就导致它们的运行轨道向内收缩。
Astronomers think Swift has a dead-on view of the digestive system of a black hole, which is blasting out a jet of energy as it RIPS apart a star trapped in its gravitational fist.
天文学家认为，雨燕观测到的是黑洞吞噬其它恒星的场景，即黑洞在将恒星撕碎并拖进它的重力陷阱的瞬间释放出的能量。
A better bet, at least in terms of continuity of production, is tidal power, whose energy comes from the gravitational pull of the sun and moon.
至少就生产的连续性来说，一个更好的选择是潮汐能，其来源于太阳和月球的引力。
Okay, my goal was to evaluate for you the gravitational potential energy the way that it is defined in general, not in a special case when we are near the Earth.
好了，我的目标是，用通常的方式，为你们评价重力势能，不是用一个特殊的，接近地球的案例。
Then this will have a positive gravitational potential energy, and this will have one that is higher than this one by this amount.
那么它将是,正的重力势能，这样的话这点,就比另一点高。
When I'm here, gravitational potential energy ; increases in this way; the gravitational force is in this direction.
重力势能，这样增长,重力;,是在这个方向,当我在这里。
What is important, of course, if we get the right answer for the gravitational potential energy, that when we move away from this object that the gravitational potential energy increases.
重要的是，如果我们得到了重力，势能的正确值，当我们远离这个物体，重力势能就会，增加。
There is a conversion from gravitational potential energy to kinetic energy back to gravitational potential energy, and it will come to a stop here.
这就是重力势能，转换到，动能，再回到，重力势能，最终停在这里。
In fact they must release energy in that way in order to degrade their orbits and get close enough to merge. Those gravitational waves could act sort of like a jet engine, explained Jonker.
Jonker解释道，“事实上他们必须通过这种方式来释放能量，降低轨道，彼此靠近并最终融合，这些重力波能产生类似喷气发动机的效果。”
Mhy You see? Mgy is gravitational potential energy.
你们看，是重力势能。
If I look at this result — the sum of gravitational potential energy and kinetic energy is conserved - for gravitational force — then it is immediately obvious where we put the zero of kinetic energy.
如果看这个结果-，重力势能与动能之和，在重力作用下，是守恒的-，马上，很明显的发现，动能为0的地方。
Notice that the gravitational potential energy increases.
注意，这里，重力势能是增加的。
Let me first give you the formal definition of gravitational potential energy.
我先给你一个对于，重力势能的形式定义。
Notice the gravitational potential energy goes down.
注意，重力势能，是减小的。
And that's the minimum amount of energy that I would require to get you to infinity and to have you escape the gravitational pull of the Earth.
那是能量的最小值，我会要求你们到无穷，然后让你们由，对地球的引力逃逸。
Now, what we would like to do is we would like to convert all this gravitational potential energy into kinetic energy of that disk.
现在要做的，就是要转化，所有这些重力势能，变成圆盘的动能。
You know, if you want to measure the potential energy of something in a gravitational field, you have to define the zero somewhere, right, because it's arbitrary.
你知道，如果你想测量重力场，中某种东西的势能，你需要，在某处定义一个零点，对吧？
This is the gravitational potential energy.
这是重力势能。
So the slowdown, the "braking" is now done because of a conversion from your linear speed which comes from gravitational potential energy to the rotation of the disk.
所以减速，刹车通过，能量的转换达到了，从，重力势能，转化到旋转圆盘上。
The formal definition is that the gravitational potential energy at a point P is the work that I, Walter Lewin, have to do to bring that mass from infinity to that point P.
形式定义就是,它在点P的重力势能,等于我，将物体从无穷远处,移动至点P所做的功。
You can install a disk in your car, which I would call, then, a flywheel, And you can convert the gravitational potential energy.
可以在车内装个圆盘，可以称之为飞轮，可以转化，重力势能。
If we know the force — in this case, the spring force or in those cases, - the gravitational force — we were able to calculate the potential energy.
在这个例子里-，弹力，或这些例子里，重力，我们能够-，计算出势能，现在问题是。
So you're using, then, the conversion of gravitational potential energy to kinetic energy.
所以你在利用，重力势能，转换成，动能。
In physics, you call potential, electrical potential or gravitational potential, the potential energy.
在物理学里面，把势，称为势能。
应用推荐