The Charged Particles Model - Polytopes and optimal packing of p points in n dimensional spheres. Includes a java applet based on a model which allows for generation of multidimensional regular and semi-regular polytopes..
The Geometry Junkyard - Comprehensive list of links to sites on geometric properties of the shapes..
Guy's Polyhedra Pages - Vertex figures, filling, faceting diagrams, stellation, defining polytopes through generators, trimethoric and trisynaptic polyhedra, space-filling polyhedra, lost stellations of the icosahedron, and links..
Pick's Theorem - Describes a theorem for finding an area of simple lattice polygons. Includes proof and Java applet simulation..
Regular Polytopes - Derivation of volume equations for regular polygons, polyhedra, and polytopes, with images..
Zome Edu - Educational toys used to teach geometry and model building to create squares, spheres, stars and other regular shapes with sticks and connecting pieces. Products include kits and lesson plans..
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