from Physics 240....

"...interference of light waves is also the reason why thin films, such as soap bubbles, show colorful patterns"

When light refracts in the soap bubble, the wavelength and the color changes. The angle at which the soap bubble is viewed determines the color of the bubble. So what color is the bubble?

Politicians and citizens often choose a party that they believe agrees most with their own vision of a better government. They rally behind the color that represents their party and argue that the government of tomorrow should be a certain color. So what color is the ideal government?