Can You Turn a Rainbow Back into White Light?

Try Tab Traces and everything else Opera has to offer: https://opr.as/Opera-browser-stevemould Newton proved that white light was made of all the colours of rainbow by recombining the spectrum. He used a second prism and a convex lens. 3b1b why different wavelengths of light bend different amounts:    • But why would light "slow down"? | Visuali...   You can buy my books here: https://stevemould.com/books You can support me on Patreon and get access to the exclusive Discord:   / stevemould   Twitter:   / moulds   Instagram:   / stevemouldscience   Facebook:   / stevemouldscience   TikTok: https://www.tiktok.com/stevemould Buy nerdy maths things: http://mathsgear.co.uk