Johnson solid models

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Joseph Malkevitch
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Joined: Tue Aug 28, 2007 2:52 pm
Location: Jamaica, New York

Johnson solid models

Postby Joseph Malkevitch » Mon Dec 25, 2017 6:23 pm

Dear Colleagues,

The late (1930-2017) Norman Johnson pioneered the study of regular faced 3-dimensional polyhedra that were not already counted by the Platonic solids, the Archimedean solids, and the infinite family of prisms/antiprisms. He conjectured there were 92 such solids and V. Zalgaller showed that his conjecture was correct (1969).

Models of the Johnson solids were made by Martin Berman in 1971 and eventually donated to the Smithsonian Museum. Photos and information about the models are available here: ... mah_690344


Joseph Malkevitch
Department of Mathematics
York College (CUNY)
Jamaica, New York 11451


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