Rainbows. We always see them. After a rainfall. When your spraying a water hose. We always see them, but do we ever think how they form? Do we ever wonder why they are a spectrum of different colors? We already know the colors. They are red, orange, yellow, indigo, and purple. Why are all of these colors in a rainbow? Well, a rainbow is clear light bieng shown from water mist. As we all know, clear light is a rainbow of colors. The light of the rainbow is clear light. So, the rain reflects the clear light of the sun. But, if it's cloudy, you can't see a rainbow, because no clear light of the sun is bieng reflectd.