什么东西最黑?是墨汁?不是,因为你能看到黑色的亮光。是黑夜?也不是,因为你还能看到星光闪烁。那么到底什么东西最黑呢?举一个例,如果在一个密不透光的容器上开一个小孔,从这个小孔往里看就是最黑的。为什么?黑色就是从物体反射出来的光很微弱,大部份光被物体吸收;而白色则是反射出来的光多,而吸收的少。如果从物体上一点儿反射光也没有,那么这个物体就是最黑的 What is the darkest thing? Is it ink? No, because you can see the black light. Is it night? Not because you can still see the twinkle of stars. So what is the darkest thing? For example, if you open a small hole in a light-tight container, looking through this hole is the darkest. Why? Black is the light reflected from the object is very weak, most of the light is absorbed by the object; and white is reflected more light, and less absorption. If there is no light reflected from the object, then the object is the darkest