This week's experiment is one that I have been playing with for quite some time. It is something that I first noticed when I was a child in school. Way back then, we watched educational movies sometimes in class. There were no VCRs or video tapes. Instead, the film was on big reels and fed through a movie projector. When the movie was over, you would rewind the film back onto the reel, and as the reels were spinning quickly, you could see bands of yellow and blue light, like the spokes of a wheel on the reels. Since then, I have found several other ways to see these blue and yellow bands. For this demonstration, you will need:

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This week's experiment uses fire, so be very careful and be sure that you have an adult to help you.

This week's experiment involves both chemistry and light. It is always pleasing for me to find one experiment that can send you exploring in several different directions.

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For this week's experiment, we are going to watch our fingers wiggle. Doesn't that sound like fun? OK, I admit that I am easily amused, but there is more to this experiment than just moving your finger. We are going to investigate part of how a television works at the same time.

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This experiment is from a Magic of Science workshop that I taught several years ago. No, it is not a get rich quick scheme. It is a fun way to see how we can bend a ray of light.

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Have you ever seen a random dot stereogram? You see them on posters, cards, calendars, etc? It can be a random pattern of dots or a repeated pattern of just about anything, and if you stare at it in just the right way you suddenly see a 3 dimensional image sticking out of the page. Have you ever wondered how they are made? Lets take a look.

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Does your TV really only have three colors?

Can you balance a hammer, a ruler, and some string on the edge of a table? Of course!

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Trick your brain into seeing color in a black and white photograph.

Learn some of the science behind optical illusions.

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Use science to make a coin seem to magically rise from a matchbox.

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Seeing UFOs?

A simple experiment shows one reason people see UFOs.

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Making Your Face Vanish

You can be like the Cheshire Cat, with only your smile left behind.

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Reversing Flag

How can a green, yellow, and black flag be right?

An easy illusion to trick your brain.

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Shadow Colors

Some shadows have colors that are not really there.