02.03.08
David
Happy fourth birthday Dusted!
According to leading childcare experts, ‘energetic’ and ‘imaginative’ best describe the 4-year-old. They feel good about the things they can do, show self-confidence, and are willing to try new adventures. I’d say this pretty much sums up Dusted as we reach our fourth birthday. Unlike a toddler though, we’re no longer prone to tantrums and have no trouble tying our own shoelaces, but we do ask a lot of questions… Though I’m not sure we have time right now to go into the intricate detail of just why the sky is blue (or snow white or water wet)! Happy birthday. Dusted.
03.03.08
Matt
Why is the Sky blue?
Transmitted light (from the sun, light bulbs, fire, etc) is made up of a spectrum of colors. The longest wavelengths of light are on the red end of the spectrum and the shortest wavelengths are on the blue/violet end of the spectrum.
When transmitted light such as sunlight enters our atmosphere it collides with the oxygen and nitrogen atoms. The color with the shorter wavelength is scattered more by this collision. Because violet and blue are the shortest wavelengths the sky appears to be violet / blue. But because our eyes are more sensitive to blue light than they are violet light, we perceive the sky as blue.
Taken from why-is-the-sky-blue.tv