We see sunlight as white but it’s actually made up of many colours. A rainbow is made during a process called refraction, where light bends inside a prism (in this case, the spherical raindrops).

Fine Arts Museums of San Francisco How many colors are in the rainbow? Seven said Sir Isaac Newton. Of course, Newton knew that a spectrum is just that, a continuous gradation from one color to ...

Since 2017 players, clubs and officials have displayed rainbow colours on bootlaces, flags and stadiums to campaign against homophobia in sport. And now, until 24 February, all matches across the ...