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Light is everywhere in our world. We need it to see: it carries information from the world to our eyes and brains. Seeing colors and shapes is second nature to us, yet light is a perplexing phenomenon when we study it more closely.
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www.learner.org/teacherslab/science/light/
www.learner.org/teacherslab/science/light/
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Light is produced by a luminous body. A light bulb is a luminous body that emits light in almost every direction. ... Of all the electromagnetic waves, light is the only portion of waves that can be detected by the human eye.
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library.thinkquest.org/10796/ch10/ch10.htm
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Light waves are a little more complicated, and they do not need a medium to travel through. They can travel through a vacuum. A light wave consists of energy in the form of electric and magnetic fields. The fields vibrate at right angles to the direction of movement of the wave, and at right angles to each other.
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www.howstuffworks.com/light2.htm
www.howstuffworks.com/light2.htm
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Light is explained in this article. Learn about light. ... 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.
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www.howstuffworks.com/light.htm
www.howstuffworks.com/light.htm
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Light Waves and Color - Chapter Outline ... Wave-like Behaviors of Light ... » The Physics Classroom » Physics Tutorial » Light Waves and Color...
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www.physicsclassroom.com/Class/light/lighttoc.html
www.physicsclassroom.com/Class/light/lighttoc.html
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Light - Wikipedia, the free encyclopedia
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Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm ). In physics, the term light sometimes refers t...
en.wikipedia.org/wiki/Light
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Light, microwaves, x-rays, and TV and radio transmissions are all kinds of electromagnetic waves. They are all the same kind of wavy disturbance that repeats itself over a distance called the wavelength.
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www.colorado.edu/physics/2000/waves_particles/index.htm...
www.colorado.edu/physics/2000/waves_particles/index.html
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There are two answers, one for "long" wavelength radiation, like microwaves, radio waves and TV waves, and another answer for light waves, ultraviolet and x-rays. In fact, the second answer challenged the greatest physicists of the early 20th century, and led to the revolution in physics called quantum mechanics.
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www.colorado.edu/physics/2000/waves_particles/wavpart4....
www.colorado.edu/physics/2000/waves_particles/wavpart4.html
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