Zero-volume Bottle

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“At last, Acme has conquered topological and engineering frontiers to manufacture genuine glass Klein Bottles. These are the finest closed, non-orientable, boundary-free manifolds sold anywhere in our three spatial dimensions.

These elegant bottles make great gifts, fantastic classroom displays, and inferior mouse-traps. With its circle of singularities, an Acme Klein Bottle can be said to exist inside of itself — especially handy during time-reversals.

A topologist’s delight, handcrafted in glass”

Kleinbottle.com

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