时差N小时 荧光色(上)

Have you ever wondered why fluorescent¹ colors, like you see in highlighters or clothing dyes, for instance, seem so much brighter than other colors?

你是否好奇为什么荧光色如荧光笔或服装染料的颜色似乎比其他颜色鲜亮许多？

It's because they seem to reflect more light than they receive!

那是因为这些颜色所反射的光线比吸收的光线要多。

It may sound like a magic trick, but it makes sense if you think about the fact that the light you can see is only a small section of the larger spectrum² of energy all around you.

这或许听起来像个魔术，但是如果你考虑到这一点，即可见光只是你周围更大光谱能量中的一小部分就很容易理解了。

Regular, non-fluorescent colors appear to our eyes when objects absorb some wavelengths⁴ of light, and reflect others.

当物体吸收某些波段的光并反射其他光时，我们就能看见普通的非荧光色。

For example, a yellow pencil looks yellow because its paint reflects the wavelength³ of yellow light, and absorbs the other wavelengths.

例如，黄色彩笔之所以显示出黄色是因为这种颜料反射黄色光波，并且吸收了其他波段的光。

Fluorescent colors also reflect or absorb colors in the visible spectrum, but that extra glow in fluorescent colors comes from energy we humans don't see,ultraviolet light.

荧光色也反射或吸收了光谱中的可见光，但是荧光色额外的光来自于人眼看不到的能量——紫外线。

1 fluorescent   

adj.荧光的，发出荧光的

参考例句：

• They observed the deflections of the particles by allowing them to fall on a fluorescent screen.他们让粒子落在荧光屏上以观察他们的偏移。
• This fluorescent lighting certainly gives the food a peculiar color.这萤光灯当然增添了食物特别的色彩。

2 spectrum   

n.谱，光谱，频谱；范围，幅度，系列

参考例句：

• This is a kind of atomic spectrum.这是一种原子光谱。
• We have known much of the constitution of the solar spectrum.关于太阳光谱的构成，我们已了解不少。

3 wavelength   

n.波长

参考例句：

• The authorities were unable to jam this wavelength.当局无法干扰这一波长。
• Radio One has broadcast on this wavelength for years.广播1台已经用这个波长广播多年了。

4 wavelengths   

n.波长( wavelength的名词复数 )；具有相同的/不同的思路；合拍；不合拍

参考例句：

• I find him difficult to talk to—we're on completely different wavelengths. 我没法和他谈话，因为我们俩完全不对路。 来自《简明英汉词典》
• Sunlight consists of different wavelengths of radiation. 阳光由几种不同波长的射线组成。 来自辞典例句