Tuesday 24 November 2020

Colour Pink doesn't exist - Science Loop

An interesting new video by Science loop on Youtube explains why Colour Pink doesn't exist. It seems that the colour of the Banana (Pink) does not exist. Not joking. Even You can not find pink on the Rainbow. 

The colour pink does not exist in reality. Even you can not find it on rainbow. You can not find any wavelength for pink or magenta. Actually colour pink or magenta is the creation of our brain. So what is the real colour for this?

In physics, colour is associated specifically with electromagnetic radiation of a certain range of wavelengths visible to the human eye. Radiation of such wavelengths constitutes that portion of the electromagnetic spectrum known as the visible spectrum - i.e., light.

Pink isn't out there. True, no single wavelength of light appears pink. Pink requires a mixture of red and purple light (colors from opposite ends of the visible spectrum). If you try to roll up the rainbow to make a color wheel, there will be a gap between red and violet.

There are also other kinds of light in the universe - radio waves, microwaves, infrared, ultraviolet, x-rays, gamma rays and so on. However, we can't see any of those wavelengths.

You could say that no color is really "out there." The world is full of electromagnetic radiation. The only intrinsic properties that this radiation possesses are physical ones such as wavelength and intensity. This might sound complicated. "Color" seems to be "all in your head." 
Color seems to be a sensation that arises within the brain.

This is pretty weird. Recent research even indicates that people can be made to see "forbidden colors" - greens that are tinted red, or blues that appear yellow.

In color theory, a tint is a mixture of a color with white, which increases lightness, while a shade is a mixture with black, which increases darkness. Both processes affect the resulting color mixture's relative saturation. A tone is produced either by mixing a color with grey, or by both tinting and shading. Mixing a color with any neutral color (including black, gray, and white) reduces the chroma, or colorfulness, while the hue (the relative mixture of red, green, blue, etc. depending on the colorspace) remains unchanged.

1 comment:

  1. Most colour blind people are able to see things as clearly as other people but they are unable to fully 'see' red, green or blue light. There are certainly different types of colour blindness and there are extremely rare cases where people are unable to see any colour at all.

    However, it is reported, that some persons who were colorblind after a hard hit on their head, regained the ability of normal color vision again after a certain timespan. They can't get back normal color vision, but might get broader perceived color spectrum in certain cases.