Have you ever made a Moebius strip? Simply take a strip of paper give it half a twist, and tape the ends together. The result is not entirely straightforward. Start drawing a line where the two colors meet and continue down the…
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On May 4, 2019, the biannual National Math Festival took place in Washington, D.C. I was fortunate to host a large area with Geometiles as part of the National Museum of Mathematics exhibit. There were about 12,000 attendees at the festival, and our tables were full of people for the entire duration of the festival…
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At the 2018 Joint Mathematics Meetings Art Exhibition, David Honda won first prize for his construction “Dodecahedral 11-holed Torus.” The sculpture was made entirely of cardstock strips with no glue, but had the precision of something made on a 3D printer. The dodecahedral symmetry of the object was quite apparent, but the topological classification of…
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My friend from Spain recently invited me on a tour down mathematical memory lane. When she and her brother were in school, some time in the 1980’s, they made these geometric solids with their dad. Amazingly, their dad (who is now a granddad) kept the paper solids for all these years and recently gave them…
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