National Find A Rainbow Day
Author: Rhonda Schneider, Challenge America Director of Operations
Each year on April 3rd, National Find a Rainbow Day challenges us to look to the sky and find a colorful ray of hope cast across it.
A spectrum of light in the form of a multicolored arc, appearing in the sky, is caused by both reflection and refraction of light in water droplets in the Earth’s atmosphere. These rainbows always appear directly opposite of the sun. The light is refracted (bent) when it enters a droplet of water, then is reflected inside on the back of the droplet and refracted again when leaving it.
