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"double refraction of light"
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This colourful ray diagram shows the dispersion of white light by an equilateral triangle prism according to Snell's law. The angle of incidence and width of beam are variable.
Applet in two parts - the first a fish's view from under water. In the second the position of the cursor is the source of a light ray. Its path from within the water to an observer appears.
An animated wave diagram showing how an incident wave is refracted for a variety of angles of incidence, and a variety of materials.
A Marvin and Milo activity about light, refraction and lenses. All you need is sticky tape, water, teaspoon and some clear plastic.
A java applet that lets you investigate reflection and refraction. One of a series of simple applets that are good for display use in the classroom.
An experiment in mixing different coloured lights.
This site contains a number of shockwave animations showing that you can make pictures using coloured lights and filters.
The light tour will let you discover information about light in the universe and how astronomers make use of light wavelengths.
A catalogue of satellite images of our home planet detailing everything from atmospheric data to city lights or natural disasters.
Optics experiments with Infra-Red light, light bulbs and liquid crystal post cards.
Showing 21 - 30 of 256