From MorgueFile.
Rainbows
Ah rainbow, my favorite color. The color that includes almost all colors. Today, I’m going to celebrate that fact by making it the word of the week!
In school I have to submit a post every week, so I decided to do a word of the week for the post. I’ve already got the next 2 words in my head, but today, the word is rainbow.
You know when you walk outside after it has rained, and the world is so nice, you can see a rainbow. Have you ever wondered what they were? Rainbows are formed by refraction in raindrops. Light in rain drops refract into all the colors. If so, why do we see the color in bands, not everywhere? Well, each color of light refracts at a different angle, so you only see red on a rainbow when there is a raindrop at the right height for red light to hit your eye. The same goes for all the other colors. Sometimes you see a second faint rainbow above the first one. This happens when light in a raindrop refracts twice. Also, if you look closely you can see that the faint second rainbow has the colors in reverse order. You can also find upside down rainbows high up by the North and South poles. There is even a moonbow, a rainbow that is made from the dim light from the moon. It looks like a white ark. Finally, you can never actually get to the end of a rainbow because as you move towards the rainbow, the rainbow moves away from you at the same speed!
Sources:
“HowStuffWorks “The Ultimate Rainbow Quiz”” HowStuffWorks. N.p., n.d. Web. 10 Oct. 2013.
Harris, Tom. “How Rainbows Work.” HowStuffWorks. N.p., n.d. Web. 10 Oct. 2013.
“Did You Know? The Rainbow.” Did You Know? The Rainbow. N.p., n.d. Web. 10 Oct. 2013.