Article
Bach and the musical Möbius strip
Discover (and listen to) the Möbius strip that's hidden within one of Bach's famous canons.
Saul Schleimer and Henry Segerman show off some of their beautiful 3D printed mathematical structures.
Lucinda Mathews visualises tricky surfaces
Is the Universe finite, with an edge, or infinite, with no edges? Or is it even stranger: finite but with no edges? It sounds far-fetched but the mathematical theory of topology makes it possible, and nobody yet knows the truth. Janna Levin tells us more.