# Meissner Tetrahedra

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The two Meissner bodies are solids of constant width. Others are spheres and certain solids of revolution.

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Contributed by: Izidor Hafner (January 2014)

Open content licensed under CC BY-NC-SA

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References

[1] B. Kawohl and C. Weber. "Meissner's Mysterious Bodies." (Jun 19, 2011) www.mi.uni-koeln.de/mi/Forschung/Kawohl/kawohl/pub100.pdf.

[2] E. Meissner, "Über Punktmengen konstanter Breite," *Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich*, 56(42–50), 1911. www.archive.org/stream/vierteljahrsschr56natu# page/n53/mode/2up.

[3] E. Meissner and F. Schilling, "Drei Gipsmodelle von Flächen konstanter Breite," *Zeitschrift für angewandte Mathematik und Physik*, 60(92–94), 1912.

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