We now have the first scientifically accepted photos of triple and quadruple rainbows. For some, it's as if we've captured a picture of a real. Very dim tertiary (triple) and even quaternary (quadruple) rainbows have been photographed. These are caused by triple or quadruple reflections of sunlight. Single rainbows are inspiring, double rainbows are rare, but tertiary rainbows have been elusive until a meteorologist provided guidelines that. According to Raymond Lee, a professor of meteorology at the U. Scientists are on the hunt for the rare triple rainbow, the likes of which would probably blow our collective minds. We now have the first scientifically accepted photos of triple and quadruple rainbows. How does the windchill factor work? THE IDEA FACTORY PROSPER.