Why Is The Sky Blue?
1. Light Waves
Light is fascinating. We know that light is the fastest thing in the universe; nothing can travel faster. It travels at 299,792 kilometers every second and it takes just over 8 minutes for the light from the sun to reach our planet. Light also travels in waves, just like water does. The wavelength of light helps us to identify different colors. The shorter the wavelength, the closer we come to ultraviolet and the longer the wavelength, the closer we come to infrared. Our eyes cannot detect ultraviolet or infrared, and can only detect everything else in between.
