klein bottle

Our image of the week shows one of our favourite topological shapes.

Lucinda Mathews visualises tricky surfaces
Conversations across science and art
Mathematics illustrates the forefront of visualising science
In the first of a new series 'Imaging Maths', Plus takes an illustrated tour of an extraordinary geometric construction: the Klein bottle.
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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.
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