The blue color of the daytime sky results from Rayleigh scattering, where atmospheric atoms and molecules preferentially scatter the blue wavelengths of sunlight more than red, rather than being the ...

There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...

I cannot copy nature in a servile way; I am forced to interpret nature and submit it to the spirit of the picture,” wrote the French painter Henri Matisse in 1908, looking back on a decade in which he ...

If you heard me say, ‘red light, green light’, you’d be forgiven for thinking I was talking about the infamous Squid Game challenge. But no, I’m referring to my two favourite LED colours that help to ...