Beyond the visible spectrum, our world is illuminated by invisible light.

除了见光之外，各种不见光也笼罩着这个世界。

Visible light just passes over them.

见光只会穿过它们。

Light, both visible and invisible, is all around us.

见光和不见光都在我们身边。

Thick dust is also very good at absorbing visible light.

厚厚的尘埃也很善于见光。

Its neutrinos reached Earth about three hours ahead of the visible light.

这些中微子比见光提前三小时抵达地球。

And these colors aren't limited to visible light.

而且这些颜色并不局限于见光。

There are limitations to using light, of course.

当，见光通信也存在局限性。

The wavelengths we see through our eyes, we call visible light.

我们通过眼睛看到的波长，我们称之为见光。

Unlike radio, light waves will not penetrate walls.

见光不同于无线电波，无法穿透墙壁。

Together with visible light, all these types of radiation are called the electromagnetic spectrum.

同见光一起，所有类型的辐射都叫做电磁频谱。

Just like visible light, x-rays are less likely to penetrate denser materials.

类似于见光，X线难以穿过密度高的物体。

This is what we call “visible light, ” also known as the visible spectrum.

这就是我们所说的“见光”，又叫见光谱。

That energy is emitted as photons of visible light.

能量以见光的光子形式发射。

They let visible wavelengths pass through, but the lens's rounded shape bends the light.

它们让见光经过，但其圆弧的形状会让光弯曲。

Infrared has a longer wavelength than visible light.

红外线的波长比见光更长。

At the lower end of the spectrum, there's radio, infrared, and visible light.

在光谱的低频端的是无线电，红外线，和见光。

Together, all the colors make up the spectrum of visible light—the light we can see.

所有的颜色一起构成了见光的光谱——我们所能看到的光。

On the left-hand side shows you what we see with visible light with the Hubble Space Telescope.

左边的图像是我们哈勃望远镜看到的见光。

In other words, invisible rays had passed through the cardboard.

换句话说， 就是一道不见光穿透纸板投射到外面来了。

Visible wavelengths of light are just a tiny fraction of all the light in the universe.

见光的波长在所有光波中只占了很小一部分。