What are your plans for the upcoming weekend?
Soup
Who was the last person you talked to on the telephone?
Salad
Name a hobby that you’ve tried but eventually gave up for some reason.
Main Course
What is the most important personality quality in a mate?
Dessert
Why is the sky blue (be creative with your answer)?
The distance between 2 crests in this wave is called the wavelength.
White light contains all the colors of the rainbow.
The amount of light scattered for any given colour depends on the wavelength of that colour.
All the colors in white light have different wavelengths.
Red light has the longest wavelength.
The wavelength of blue light is about half that of red light.
This difference in wavelength causes blue light to be scattered nearly ten times more than red light. Lord Rayleigh studied this phenomena in detail. It is caused the Tyndall effect or Rayleigh scattering.
Lord Rayleigh also calculated that even without smoke and dust in the atmosphere, the oxygen and nitrogen molecules would still cause the sky to appear blue because of scattering.
When blue light waves try to go straight through an oxygen and nitrogen molecules, its light is scattered in all directions because of this collision.
This scattered blue light is what makes the sky blue.
Comments (1)
did you know that off the top of your head, or what? The blue sky thing..
Posted by lisa | October 8, 2004 11:27 AM
Posted on October 8, 2004 11:27