We see things every day, from the moment we get up in the morning until we go to sleep at night. We look at everything around us using light. We appreciate kids' crayon drawings, fine oil paintings, swirling computer graphics, gorgeous sunsets, a blue sky, shooting stars and rainbows. We rely on mirrors to make ourselves presentable, and sparkling gemstones to show affection.
Light is all our eyes can really see.
Each one uses a different technique to generate photons. Inc. All rights reserved. If you are interested in light, you may also be interested in the other articles in the How Stuff Works Science Category .