You may think you know rainbows, but do you really know rainbows? HowStuffWorks.com is willing to bet you don't. We have more tidbits about refracted light than you've had hot meals, so step right up if you're feeling knowledgeable and prepare to get schooled in seven separate hues.
Question 1 of 10
Why are there so many songs about rainbows, and what's on the other side?
Question 2 of 10
In the Broadway musical "Finian's Rainbow," where does the title character (on the run from a leprechaun) hope to invest his ill-won pot of gold?
Question 3 of 10
If most of the vehicles in your immediate vicinity have license plates with rainbows on them, which U.S. state would you be in?
Question 4 of 10
Rainbows frequently play a part in myth, folklore and religion. Leprechauns hide their gold near them. God uses them as a promise not to drown everything. Which of the following is not an actual rainbow belief?
Question 5 of 10
Who defined the seven-color sequence of hues (red, orange, yellow, green, blue, indigo and violet) in the visible spectrum in rainbows?
Question 6 of 10
Fill in the blank: When white sunlight hits ____ at a fairly low angle, you can see the component colors red, orange, yellow, green, blue, indigo and violet in the form of a rainbow.
Question 7 of 10
So just how many colors does each raindrop produce when it refracts white sunlight?
Question 8 of 10
Rainbows sometimes deviate from their most common form. You might find yourself looking down at one inside a crater at Hawaii's Volcanoes National Park, and you might even glimpse a double rainbow. But the rare upside-down rainbow is something different entirely. What causes these multicolored smiles in the clouds?
Question 9 of 10
The water droplets required for a rainbow don't have to come from a cloud. They can come from a geyser, crashing surf or even a spider's web. But what about other light sources? Is there such thing as a moonbow?
Question 10 of 10