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Every kid knows that the best toy is one made lovingly by a parent. Why not spend some of your shop time this weekend making a special toy for your kids? Check out the link below for some excellent instructions on how to make your very own kaleidoscope.

According to the author, the kaleidoscope was invented in 1816 by Sir David Brewster. If Sir David can build one two centuries ago, you — with all your high-tech tools and know-how — can probably throw one together today, right?

(Thanks, fdecomite, for the great cc-licensed photo.)

Weekend Project: Kaleidoscope Making [Queens University Math@Home]

 

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