And all those free electrons are great at conducting electricity.

而那些有很好的导性。

The free electrons in metals are especially good at this vibrating-to-match-visible-light thing.

和金属产生的振荡与可见光波长匹配。

This was an important event! Free electrons are really really good at absorbing photons, absorbing light.

这是一个大事件！非常擅长吸收光，吸收光。

To free electrons, something has to make them whirl fast enough to break away from their nuclei.

为了释放，必须使高速旋转而足以摆脱原核的束缚。

So we’ve got insulators and conductors with free electrons moving around in them.

所以我们有绝缘体和导体， 中有在中移动。

And as a result these things don't have a lot of free electrons.

因此这些东西没有很多。

And as we pair those electrons, now we don't have those free electrons anymore.

当我们把这些配对时, 现在我们不再有那些了。

These extra free electrons want to move as far away from one another as possible.

这些额外的尽可能多地离开 彼此可能。

And so if we have free electrons it's easy for them to flow through that metal.

因此, 如果我们有, 它们很容易流过金属。

We'll begin at the top with a device called a field emission source which generates free electrons.

我们将从顶部开始，使用一种称为场发射源的设备来生成。

And when we talk about an object having an overall positive charge, we mean it’s missing free electrons.

当我们谈论一个整体带正荷的物体时， 我们的意思是它缺少。

These moving electrons are called free electrons.

可以移动，称为 这些移动的：。

As these free electrons rush from one electrode to the other, they collide with more neon atoms, causing them to ionize as well.

当这些从极的一端涌向另一端，它们与更多的氖原碰撞，并使身也离化。

And when we talk about an object having an overall positive charge, we mean it's missing free electrons.

当我们谈论一个元素时 正总荷，我们的意思是。

Sheldon, I told you, I only have access to the free electron laser at night. I can't drive you for the next few weeks.

谢尔顿我跟你说过了，我只有晚上才能用激光仪。接下来几个礼拜我都不能开车送你了。

And the amount of dispersion tells you how many free electrons that radio wave had to pass through to reach the detector.

色散量告诉您无线波必须通过多少个才能到达检测器。

This type of star was known to be very dense and made of compact, degenerate matter composed of atomic nuclei and free electrons.

这种星体以极高密度著称，致密、退化的物质构成，这种物质主要原核和组成。

To figure this out, let's imagine we have a conductive sphere with a net negative charge meaning it has too many free electrons.

为了找出答案，想象一个带有总荷的携带球 负的，意味着它有额外的。

The kind of chemistry that happens inside of a battery is called electrochemistry because it involves reactions that produce or consume free electrons.

池内部发生的化学反应称为化学，因为它涉及产生或消耗的反应。

The answer is an imbalance of electrical charge, when some part of an object has a different number of free electrons than another part.

基本上？