Electromagnetic waves can have all sorts of strange effects on us.

电磁波对有各种各样奇怪的影响。

Light is basically a tiny electromagnetic wave traveling through space.

基本上，光是在宇宙中穿梭的微小电磁波。

We should beware of the electromagnetic waves from the computer.

应该小心从电脑中发射的电磁波。

So small that the electromagnetic waves we used to see are too big to touch them.

它小到过去所能看到的电磁波根本碰不到。

We can try to solve this by creating electromagnetic waves with more and much smaller wavelengths.

可藉由缩小电磁波波长来解决问题。

To see something, we need light, an electromagnetic wave.

想要观测，需要光，也就是电磁波。

Wifi networks on land use electromagnetic waves, but in water these will only travel a few centimetres.

地面上的WiFi网络使用电磁波，但是在水中它只能穿行几厘米而已。

Maybe as civilizations develop, they quickly discover communication technologies far more sophisticated and useful than electromagnetic waves.

可能一个明发展得，致于它使用的是比电磁波更加复杂有用的信号。

The advent of " metamaterials" provides a new solution for the perfect invisibility of any electromagnetic wave.

“超材料”的出现为任何电磁波的完美隐形提供了新的解决方案。

To understand what's actually happening here, we need to understand how electromagnetic waves like light travel across space.

为了理解这里到底发生了什么，需要理解像光这样的电磁波是如何穿越空间的。

Now, as these two oscillating fields move across space, that is what is known as an electromagnetic wave.

现在，当这两个振荡场在空间中移动时，这就是所说的电磁波。

Conduction is the transfer of heat between solid objects, convection uses the movement of fluids, while radiation relies on electromagnetic waves.

传导指的是两个固体之间热量的转移，对流运用流体的运动，辐射利用电磁波。

Because it's also useful in studying curves, pi helps us understand periodic or oscillating systems like clocks, electromagnetic waves, and even music.

因为学习曲线也需要用到 π，π 帮助认识周期或振动系统，如钟摆、电磁波甚至音乐。

These are the most energetic electromagnetic waves or the highest-energy form of light.

这些是最具能量的电磁波，或者说最高能的光形式。

Of course, that's light and electromagnetic waves, radio waves, everything else.

当然，那是指光和电磁波、无线电波等等。

And you might recall in electromagnetism, we make electromagnetic waves in a simple way.

你可能记得，在电磁学中，一种简单的方式制造电磁波。

And so the electromagnetic spectrum is made up of these electromagnetic waves.

电磁波谱是由这些电磁波组成的。

And, like all electromagnetic waves, what's oscillating in a light wave, is its electric field.

而且，就像所有的电磁波一样， 光波中振荡的是它的电场。

Gravitational waves—ripples in the geometry of space-time—are analogous to electromagnetic waves.

引力波——空间-时间几何形态的波动——同电磁波相似。

There's actually higher frequencies of electromagnetic waves that have all sorts of applications.

实际上，更高频率的电磁波具有各种各样的应用。