These materials include pattern pieces (both plastic and paper) relating to A. Harry Wheeler's models of one-sided polyhedra. Wheeler’s interest in one-sided polyhedral seems to have been heavily ...

Flat hexagons and pentagons come together in new twist on old polyhedra In the latest verse of a centuries-old mathematical refrain, scientists have figured a way to iron out the wrinkles in a large ...

The distinctive three-dimensional shape in Albrecht Dürer’s 1514 engraving Melencolia I has been the subject of innumerous analyses and still no one is sure what it is or what it means. On the ...

I’ve always loved stargazing. As I write this in late June 2015, it’s rainy season here in Japan—but if the clouds ever part during the evening hours, you’re sure to catch twinkling Venus and nearby ...