Welcome to the new series from the Jewish Children's Museum in conjunction with COLlive: “History’s Heroes,” where we learn ...

So when the sun is behind you and the rain in front of you, you see a rainbow of colours reflected back from inside the raindrops. As well as the lovely colours, rainbows also have a unique shape.

A regular rainbow happens when sunlight is refracted through water droplets, usually rain drops, splitting the light into the spectrum of colours. By Matt Taylor, BBC Weather Double rainbows ...