File:120-Cell showing the individual 8 concentric hulls and in combination.svg

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English: The 120-Cell showing the individual 8 concentric hulls and in combination. Orthogonal projection of the 120-cell using any 3 of these Cartesian coordinate dimensions forms an outer hull of a Chamfered dodecahedron of Norm=√8.

Hulls 1, 2, & 7 are each overlapping pairs of dodecahedrons.
Hull 3 is a pair of icosidodecahedrons.
Hulls 4 & 5 are each pairs of truncated icosahedrons.
Hulls 6 & 8 are each rhombicosidodecahedrons.

This is constructed from VisibLie_E8 found on TheoryOfEverything.org.

Here [1] is a link to a Powerpoint presentation that shows the generation of all 3D Platonic, Archimedean and Catalan solids, as well as the popular 4D polychora using quaternion Weyl orbits from Coxeter-Dynkin ​Geometric Group Theory concepts. The first 8 slides introduce the material and my interactive demonstration, slides 9-28 review the Coxeter-Dynkin group theory with Hasse diagrams, and slides 29-48 show the 3D solid orbit generation, with slide 49-62 showing the 4D polychora with links to the higher dimensions of E8.
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Author Jgmoxness
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 This diagram was created with Mathematica.

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23 August 2022

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321671b225d0dc12679b187d71d3528cf4abfea0

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Date/TimeThumbnailDimensionsUserComment
current15:05, 13 September 2022Thumbnail for version as of 15:05, 13 September 20221,219 × 1,291 (1.65 MB)wikimediacommons>Jgmoxnessthis time with Sqrt[8] Norm vs. unity

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