Light and Optics

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» Color and Color Vision - Explains additive and subtractive colour mixing, the mixing of wavelengths, Newton's dispersion of white light to show the colours of the rainbow.
» Colorworm Explains Color - An online book about light and color for all ages. Explains the electromagnetic spectrum, visible light, RGB, CMYK, light, and mixing paint colors.
» How Does a Pinhole Camera Work? - Explains the principles behind the pinhole camera.
» How Light Works - Explains light in terms of photons to explain reflection, refraction and absorption.
» How we see Colour - Explains human perception of colour and optical illusions in depth with clear diagrams.
» Java Applet - Java applet exploring reflection and refraction of light beam and laser beam.
» Light Refraction - Uses example of sphere on a checkerboard to show how light is refracted.
» Light and Colour - Explains how we see colour and discusses the mixing of frequencies.
» Light and Optics: Online Meteorology Guide - Introduces optical effects resulting from light interaction with air, dust and haze particles, ice crystals and water droplets.
» Molecular Expressions: Science, Optics and You - Timeline, interactive java applets showing various properties of light and lenses, tutorials, and other links for students.
» Optics 4 Kids - Tells about the science of light and answers common questions. Also explores careers in optics. From the Optical Society of America.
» Optics for Kids - Includes a section on careers in optics, vision and color, optics in nature, optics and laser lab, and biomedical and health applications.
» Skytopia - Colour and Light Trivia - Amusing guide lists various oddities about colour and light. Find trivia on 3D, mirrors, light bulbs, and contradictions about the perception of colour.
» The Electromagnetic Spectrum - From NASA, an overview of the different types of electromagnetic waves.
» The Reflection and Refraction of Light - Uses geometry to predict reflection from plane and spherical mirrors, and looks at how speed and wavelength varies with different media.
» The Speed of Light - Defines the speed of light and describes how man learned to measure it. Includes interactive quiz.
» What Makes an Object Coloured - Explains principles of reflection, refraction, absorption and transmission to explain how objects are a particular colour.