Exploring the Atmosphere With Lidars
- Learn about this type of laser, which is similar to radar but uses light instead of radio waves. Features descriptions of applications in measuring short and long term climate change indicators such as temperature, ozone, and ocean waves. Includes chart
- http://pcl.physics.uwo.ca/science/lidarintro/

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.
- http://www.yorku.ca/eye/color.htm

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. By Pat Ellison.
- http://www.patellison.com/colorworm/home.html

Java Applet
- Java applet exploring reflection and refraction of light beam and laser beam.
- http://www.phy.ntnu.edu.tw/ntnujava/viewtopic.php?t=66

LightForest: The Holographic Rainforest
- Explains what is an hologram and the physics behind it. Also shows a variety of examples gathered in a virtual exhibition.
- http://web.mit.edu/museum/lightforest/lightforest.html

Science Snacks About Light
- A set of very simple experiments featured by Exploratorium, each one with details on materials, assembly, how can be done, and an explanation of the physical laws involved.
- http://www.exploratorium.edu/snacks/iconlight.html

MicroWorlds
- 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/

Optics 4 Kids
- 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/

What Makes an Object Coloured
- 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

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

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

Light Refraction
- 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

Light and Optics: Online Meteorology Guide
- 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

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.
- http://physics.bu.edu/~duffy/PY106/Reflection.html

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

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

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.
- http://www.skytopia.com/project/light/light.html

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