Lasers      Lasers produce an amplified, highly concentrated, bright, and powerful beam of light through stimulated emission of radiation. They are used in many realms of life including medicine, military, entertainment, and telecommunitcation. Wavelengths &         Speed of Light      The electromagnetic spectrum is made up of different speeds of wavelengths and include ultraviolet and infrared rays. There are several different kinds of electromagnetic waves that move at the speed of light. Many scientists worked to discover the actual speed of light. Color Description here, which I currently can not think of. Mirrors      Mirrors are closely related to lenses, but have reflective surfaces. They have the ability to create real and virtual images. Lenses      Lenses are used to view things a certain way. How an object is viewed under a lens depends on the lens' focal length and radius of curvature. Diffraction      Diffraction is the bending of light waves around an object in it's path. It causes far away objects to appear blurry, which is why we use telescopes and binoculars to correct that. Reflection &         Refraction      Reflection is the returning, or "bouncing" of a wave off of a surface which resists that kind of wave. Total internal reflection is a special case of reflection created when when a light passes from a more optically dense medium to a less dense one at an angle such that there is no refracted ray. Refraction is the change in direction of a wave when it passes into a new substance. History      Since the beginning of time, humans have strived to discover and understand what light exactly is. Light has had a great impact on our culture. Solar Power      The energy we receive from the sun has great potential in the areas of powered cars and heating houses. Solar energy also provides food for the Earth. Information      Find out about Team 28160, look over our bibliography, sign our guestbook, or contact us. Search      Use our search engine to look through Light! for topics of interest. This site was created for ThinkQuest '99 by Karolina, Ryan, and Elizabeth with coach Mr. Holcomb.