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Sangaku: Reflections on the Phenomenon Sangaku: Reflections on the Phenomenon- Critical reflections on the sangaku phenomenon accompanied by a collection of solved sangaku problems, many with interactive Java illustrat… Cut the Knot Cut the Knot- Features articles about specific problems, illusions, and puzzles. Includes diagrams. Math Forum: Search geometry-forum Math Forum: Search geometry-forum- Those interested in examining the previous incarnation of the Math Forum may search the archives of the Geometry Forum. Math Forum: Geometry.research Math Forum: Geometry.research- Discussion board for geometry professors and instructors to keep informed of the latest research. Archimedes' Book of Lemmas Archimedes' Book of Lemmas- A collection of all 15 propositions from Archimedes' Book of Lemmas with complete proofs, each accompanied by a Java illustration. The Lepidoptera of the Circles The Lepidoptera of the Circles- The Butterfly theorem and its generalizations illustrated by Java applets. The Complete Quadrilateral The Complete Quadrilateral- Several properties of the complete quadrilateral illustrated with Java applets NPR : Mathematicians Get Crafty with Geometry NPR : Mathematicians Get Crafty with Geometry- A husband and wife from Cornell University have come up with a crafty way to illustrate high-level geometry concepts -- by manipulat… Fundamentals of Geometry Fundamentals of Geometry- Free online book on geometry in pdf format. Contains material not easily found elsewhere from detailed exposition of elementary absolute geometry based o… A Gallery of Interactive On-Line Geometry A Gallery of Interactive On-Line Geometry- At the Geometry Center. Geometry and the Imagination in Minneapolis Geometry and the Imagination in Minneapolis- Geometry exercises for a two-week summer workshop led by John Conway, Peter Doyle, Jane Gilman and Bill Thurston at the Geometry Cente… Geometry Formulas and Facts Geometry Formulas and Facts- Excerpts from the 30th Edition of the CRC Standard Mathematical Tables and Formulas (1995), namely, the geometry section minus differential geometry. Geometry Center Geometry Center- Web site for the (now closed) Center for the Computation and Visualization of Geometric Structures at the University of Minnesota. Graphics, multimedia, software,… Geometric Group Theory Geometric Group Theory- Information and resources about geometric group theory and low-dimensional topology. People, groups, meetings, links. Conjectures Produced by the Program Graffiti Conjectures Produced by the Program Graffiti- Graffiti is a computer program that makes conjectures in mathematics and chemistry. Links to the conjectures and bibliography. The Entropy Reduction Laboratory by Karl-Dietrich Neubert The Entropy Reduction Laboratory by Karl-Dietrich Neubert- Discusses double shell structured periodic systems, platonic spheres, molecular and crystal structures, and FlashSort al… Xah's Personal Page Xah's Personal Page- Features an illustrated dictionary of special plane curves, a paper on wallpaper groups, mathematics image gallery and links to software packages. Packomania Packomania- Includes packings of equal objects in containers together with source codes to obtain them numerically. Bob's Pages Bob's Pages- A collection of interactive geometry applets. Topics include polyhedra, Poncelet's porism, Soddy's hexlet, Mandelbrot set, Steiner porism, Pappus's chain, Repulsion p… The Geometry Junkyard The Geometry Junkyard- Usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other stuff related to discrete and computation… Geometry in Action Geometry in Action- Includes collections from various areas in which ideas from discrete and computational geometry meet real world applications. Erich's Packing Center Erich's Packing Center- Graphics and links for various packing, tiling and covering problems. GLaD Comments GLaD Comments- A new type of geometric construction that was discovered by Dan Litchfield and David Goldenheim. Includes general explanation and sketch examples. Geometry from the Land of the Incas Geometry from the Land of the Incas- Presents problems involving circles and triangles, with proofs, SAT practice quizzes and famous quotes. Also, has examples of geometry in Peru… Polyedergarten Polyedergarten- Shows paper models of polyhedra. GeoSci-Jobs GeoSci-Jobs- Group announcing postdocs, assistantships, scholarships and employment opportunities in the earth sciences. Center for the Advancement of Distinguished Language Proficiency Center for the Advancement of Distinguished Language Proficiency- Provides resources for students and teachers who are interested in how language learners reach near-native levels… Reading in a Foreign Language (RFL) Reading in a Foreign Language (RFL)- Refereed online journal published at the University of Hawaii. Papers available in PDF and HTML formats. Why, How, and When Should My Child Learn a Second Language? Why, How, and When Should My Child Learn a Second Language?- Article by Kathleen Marcos on the benefits of early second language education. Center for Advanced Language Proficiency Education and Research (CALPER) Center for Advanced Language Proficiency Education and Research (CALPER)- At Pennsylvania State University. Conducts research to improve the environment of advanced-level foreign …