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klein bottle:




A "klein bottle" is a classic physics demonstration, showing a three-dimensional object that has only two
surfaces. The best ones are large and made of glass and so must be hand-made. Mine doesn't have the graduations
on it which is how I prefer it.



Handmade Glass Klein Bottle ($89 at Amazon)


artist and dimensions:


graduated klein bottle:



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last updated 05/23/2025 at 15:44:45 by make_www_index.command version 2025.05.20.B