Feathers; Eggs; Wings; and The Like

Hønen Høns og hanen Hans – og lille Kyllerylle – ønsker god påske med en kurvfuld ægs

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The color pink

Pink light doesn’t really exist.
Guia Marie Del Prado

Pink light doesn’t really exist: We all think that the visible spectrum of light — every color we can see — is represented in the rainbow. But this isn’t actually true.

When you hold up a crystal prism to a beam of light, you see red, orange, yellow, green, blue and violet and every color in between coming out the other side. But where does pink fall?

Colors look different to our eyes because they have different wavelengths — ranging from 400 nanometers from purple to 700 nanometers for dark red:

The electromagnetic spectrum. The thin part in the middle is the range of wavelengths our eyes perceive as color.

Most colors that our brain sees are associated with specific wavelengths that fall in these numbers. All shades of green fall between blue and yellow in the spectrum and therefore have wavelengths that fall between those of blue and yellow.

But if you look closely, you’ll see that pink isn’t anywhere in there. There’s no specific wavelength of light that looks pink.

That’s because, according to this super-short explanation from Minute Physics, there’s actually no such thing as pink light.

When we see the color pink, otherwise known as fuchsia or magenta, what we are actually seeing is a mix of red, blue, and purple light — light colors that don’t intersect in a rainbow so there’s no intermediate wavelength that is “pink.”

The minute physics video shows this by rolling up the electromagnetic spectrum into a kind of color wheel, connecting one end to the other, showing that pink would theoretically fall in the gap between red and purple.

Minute Physics’s explanation is that that gap contains all the wavelengths you can’t see — radio waves, microwaves, infrared, X-rays, and gamma rays.

And because we can’t see any of those wavelengths, our vision instead invents pink to fill the gap.

And since light being reflected by objects is what gives them a color, some think this means that the color pink doesn’t really exist. In reality pink is an illusion created by our brains mixing red and purple light — so while we see the color pink, it doesn’t have a wavelength.

Written by Guia Marie Del Prado

https://www.businessinsider.com/pink-light-doesnt-really-exist-2015-8?r=US&IR=T

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Blue

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Rød-hvid-gul

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Indian

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