other related subjects (constructions, perspective, packing, inversion, art…)
| constructions of regular polygons and useful diagrams
the golden ratio - the format A (A4 paper sheet) the discrete plane symmetry groups - the tilings of the plane |
| les regular polygons and the regular polytopes
the nets of the rectangular cobblestones and of the parallelepipeds folding a cross the Rubik's Cubes |
| the riding prospect (parallel perspective) - drawing polyhedra in perspective
examples of proofs by moving from 2D into 3D |
| polyhedra and art: classical - modern - architecture
two compositions by Nicolas Hannachi: polyhedra - kissing spheres news (research): 3D printing, eversible polyhedra... |
| the perspectives of a circle
the inversion packing spheres: the CCP and the "kissing spheres" |
| color codes
our earth (NASA): night view, air traffic, pollution, climate evolution brief survey of New-Caledonia, "the island nearest to the paradise" |
updated 20-08-2023