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Black

✨ The absence of light

Black is a color we perceive when very little visible light from a surface reaches our eyes. We often call an object black because it absorbs much of the visible light that falls on it instead of reflecting a large amount toward us. A black shirt, for example, can absorb a broad range of visible wavelengths.

No ordinary material absorbs every bit of light, however, so the appearance of black depends on the material, its surface, the lighting, and the sensitivity of our eyes. When no visible light reaches the eye, the visual system receives no visible signal and we perceive darkness as black. Black is therefore closely connected with how light interacts with matter and how vision detects light.

In art and design, black can be made with pigments or dyes that absorb much of the visible light. On a screen, black is produced differently: the red, green, and blue light components of a pixel can all be set to zero, so the pixel emits no visible light. A dark pigment mainly reduces reflected light, while a black screen pixel produces darkness by emitting none.

Black also changes how nearby colors appear. A bright color on a black background can seem more vivid because contrast makes it easier to notice. Looking at black objects under different lighting helps children discover that the colors we see depend on the object, the light, and our visual system.

💡 Did you know?

Do you know what a 'black hole' is in space? It is a place where gravity is so strong that even light cannot escape it. Since no light comes out, we cannot see them with our eyes; they appear totally black to us. It is one of the greatest mysteries of our universe!

There is a paint so black that it's called 'Vantablack.' It is composed of millions of tiny microscopic carbon tubes. When light enters it, it stays trapped between the tubes like in an endless forest and eventually disappears. Vantablack is so black that one loses the sense of relief when looking at it!

Why do black cats sometimes have a bad reputation? In the past, some people foolishly believed they brought bad luck. But in other countries like Scotland or Japan, it is thought on the contrary that a black cat brings luck and prosperity to a house. In reality, they are just as affectionate animals as any other!