An enduring Möbius strip mystery has finally been solved

Any attempt to better understand Möbius strips is bound to run into some kinks.

The twisted loops are so strange that mathematicians have struggled to answer some basic questions about them. For example: “What’s the shortest Möbius strip you can make for a paper band of a given width?” 

The question hooked mathematician Richard Evan Schwartz. A mistake in a computer program almost prevented him from finding the answer. Simply messing around with strips of paper finally helped him solve the mystery.

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