Optical Illusions (18)

Color and Color Vision [ Mature Teens ] - Explains additive and subtractive colour mixing, the mixing of wavelengths, Newton's dispersion of white light to show the colours of the rainbow. http://www.yorku.ca/eye/color.htm

Colorworm Explains Color [ Kids ] - An online book about light and color for all ages. Explains the electromagnetic spectrum, visible light, RGB, CMYK, light, and mixing paint colors. http://php.iupui.edu/~pellison/colorworm/home.html

How Does a Pinhole Camera Work? [ Teens ] - Explains the principles behind the pinhole camera. http://www.howstuffworks.com/question131.htm

How Light Works [ Teens/Mature Teens ] - Explains light in terms of photons to explain reflection, refraction and absorption. http://www.howstuffworks.com/light.htm

How we see Colour [ Teens/Mature Teens ] - Explains human perception of colour and optical illusions in depth with clear diagrams. http://www.colourtherapyhealing.com/colour/colour_perception.php

Java Applet [ Kids/Teens ] - Java applet exploring reflection and refraction of light beam and laser beam. http://www.phy.ntnu.edu.tw/java/light/flashLight.html

Light and Optics: Online Meteorology Guide [ Mature Teens ] - Introduces optical effects resulting from light interaction with air, dust and haze particles, ice crystals and water droplets. http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/opt/home.rxml

Light Refraction [ Teens ] - Uses example of sphere on a checkerboard to show how light is refracted. http://id.mind.net/~zona/mstm/physics/light/rayOptics/refraction/refraction1.html

MicroWorlds [ Teens/Mature Teens ] - An educational tour of current research at Berkeley Lab's Advanced Light Source. Contains information about the facility research, and teaching modules. http://www.lbl.gov/MicroWorlds/

Molecular Expressions: Science, Optics and You [ Kids/Teens/Mature Teens ] - Timeline, interactive java applets showing various properties of light and lenses, tutorials, and other links for students. http://micro.magnet.fsu.edu/optics/

Optics 4 Kids [ Kids/Teens ] - Tells about the science of light and answers common questions. Also explores careers in optics. From the Optical Society of America. http://www.opticsforkids.com/

Optics for Kids [ Kids ] - An overview of the basics of optics, also discusses careers in science and engineering. http://www.opticalres.com/kidoptx.html

Skytopia - Colour and Light Trivia [ Kids/Teens/Mature Teens ] - Amusing guide lists various oddities about colour and light. Find trivia on 3D, mirrors, light bulbs, and contradictions about the perception of colour. http://www.skytopia.com/project/light/light.html

The Electromagnetic Spectrum [ Teens ] - From NASA, an overview of the different types of electromagnetic waves. http://imagers.gsfc.nasa.gov/ems/ems.html

The Reflection and Refraction of Light [ Teens/Mature Teens ] - Uses geometry to predict reflection from plane and spherical mirrors, and looks at how speed and wavelength varies with different media. http://physics.bu.edu/~duffy/PY106/Reflection.html

The Speed of Light [ Kids/Teens ] - Defines the speed of light and describes how man learned to measure it. Includes interactive quiz. http://www.what-is-the-speed-of-light.com/

What Makes an Object Coloured [ Teens/Mature Teens ] - Explains principles of reflection, refraction, absorption and transmission to explain how objects are a particular colour. http://www.colourtherapyhealing.com/colour/objects_and_colour.php