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Top 20 Directory:
Top : Science : Math : Geometry : Polytopes : Higher_Dimensional
Sites:
  		• Hyperspace Structures: Exploring the Fourth Dimension: Explains the properties of the hypercube and hypertorus. Shows models and video clips. Includes information on how these images were created using software and mathematics.
  		• Mark Newbold's Java Stuff: Java applets that show intersections, morphing, and stereoscopic renderings of four-dimensional polytopes and optical illusions.
  		• Regular 4d Polytope Foldouts: Java applets to view the shapes by rotating them.
  		• Uniform Polychora: Some images, and the naming scheme that the author has used to categorize over 8000 of these shapes with.
  		• Uniform Polytopes in Four Dimensions: Tabulates the convex uniform (Platonic and Archimedean) polychora.
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