Prism Rainbow

The video explains how a rainbow displays seven colors by separating light through raindrops. It demonstrates this concept using a prism, which separates white light into its constituent colors. The video also shows how to create a rainbow indoors using a glass of water. It concludes by explaining that white light is made up of seven colors, which can be recombined to form white light again.

What new insight or understanding did you gain from this video?