The dodecahedron, the icosahedron and E<sub>8</sub> next
THE DODECAHEDRON, THE ICOSAHEDRON
AND E8

John C. Baez

Hong Kong Mathematical Society
May 20, 2017











The rotating images of Platonic solids were created by Cyp, who placed them on Wikicommons under a GNU Free Documentation License. You can see them on the Wikipedia article on Platonic solids.

J. G. Moxness created the image of E8 root polytope and put it on Wikicommons under a Creative Commons Attribution-Share Alike 3.0 Unported License.