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How Christmas Lights Work

A brief description of how Christmas Lights work from HowStuffWorks.com.

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Prism refraction

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.

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Refraction and total internal reflection

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.

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Hits: 1897

Refraction of light

An animated wave diagram showing how an incident wave is refracted for a variety of angles of incidence, and a variety of materials.

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Hits: 892

Mini magnifier - Marvin and Milo

A Marvin and Milo activity about light, refraction and lenses. All you need is sticky tape, water, teaspoon and some clear plastic.

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Hits: 291

Java Applet - reflection and refraction

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.

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Hits: 3782

Could lightning keep the lights on?

Just how realistic is it to try and use lighting as a source of power.

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Hits: 23

Colored Shadows

An experiment in mixing different coloured lights.

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The CSE Light Tour

The light tour will let you discover information about light in the universe and how astronomers make use of light wavelengths.

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Hits: 2450

How epic solar winds make brilliant polar lights

A summarised view of how the aurora is formed.

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Hits: 511

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