Let There Be Light!
What contains the colors of the rainbow, travels in straight lines at 186,230 miles per second, and allows us to see by bouncing off objects around us? Light! There's a lot more to light than meets the eye so join us as we explore sites about this essential form of energy.
Let's first discover How Light Works. Learn what changes white light into a rainbow, why roses are red, and how objects appear black or white.
Next, take a Light Walk with "sun artist" Bob Miller. Through text and photos you'll learn the science behind shadows and light. Plus, try the activities and see how sunlight can shine through pinholes in so many fascinating ways. Do you agree with Bob that all light is in the form of images?
Now let's take a closer look at the eye and the way it works. Here you'll find out how light rays pass through the different parts of the eye to the brain to produce vision. You'll also find out how your eyes' ability to refract light can cause you to be nearsighted or farsighted.






