Möbius strip

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.

Tags: cosmology : compact universe : connectedness : Möbius strip : Klein bottle : tiling : curvature

Mathematics illustrates the forefront of visualising science

Tags: Möbius strip : Klein bottle : mathematics and art : hyperbolic geometry : visualisation : elliptic geometry

Mathematicians solve the famous loop's mystery

Tags: Möbius strip : topology : orientability