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Watch Those Wheels
Have you ever noticed the patterns in car wheel trims? These
questions will make you look at car wheels in a different way!
Can you recreate this Indian screen pattern? Can you make up similar patterns of your own?
A gallery of beautiful photos of cast ironwork friezes in Australia with a mathematical discussion of the classification of frieze patterns.
Patterns that repeat in a line are strangely interesting. How many types are there and how do you tell one type from another?
Proofs that there are only seven frieze patterns involve complicated group theory. The symmetries of a cylinder provide an easier approach.