Geometry in Action (Popularity: ): Includes collections from various areas in which ideas from discrete and computational geometry meet real ... The Geometry Junkyard (Popularity: ): Usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other stuff ... Erich's Packing Center (Popularity: ): Graphics and links for various packing, tiling and covering problems. Tim Lister's Hyperbolic Geometry (Popularity: ): Cabri constructions for the demonstration of the basic concepts of hyperbolic geometry in the Poincare ... Steiner Surfaces (Popularity: ): Mathematical descriptions and ray-traced images of various types of Steiner surfaces Bob's Pages (Popularity: ): A collection of interactive geometry applets. Topics include polyhedra, Poncelet's porism, Soddy's hexlet, Mandelbrot set, ... Wilson Stothers' Inversive Geometry and CabriJava Pages (Popularity: ): Includes Steiner's Porism and the arbelos. Diamond Theory (Popularity: ): Plato tells how Socrates helped Meno's slave boy "remember" the geometry of a diamond. Twenty-four ... Packomania (Popularity: ): Includes packings of equal objects in containers together with source codes to obtain them numerically. Math 3210 - Higher Geometry I (Popularity: ): Course notes by Bill Cherowitzo.