Description: The Gathering, also referred to as G4Gn (n denoting the number in the series), is a biennial conference that started with G4G1 in 1993. At each Gathering, there are lectures, performance art, puzzle and book displays, close-up and stage magic acts, and guided sculpture building. Traditionally, each conference has a Gift Exchange in which attendees swap puzzles, magic tricks, artwork, mathematical papers, novelty items, books, etc. The following items were exchange gifts from several different Gatherings.Paper Braid Puzzle by Lambert BrightPuzzle objective: Remove the cord from the braid without cutting, tearing, or bending the paper. (No, don't cut the cord either, and don't burn, etc.) Twelve card assembly by Andrea HawksleyRhombicuboctahedronClara's Rocket (booklet) by Robert OrndorffBefore folding the rocket, you will first fold and cut out the largest possible equilateral triangle from a rectangle of conventional proportions (American letter or A4). Why is this triangle an equilateral one? Everybody will understand and appreciate the straightforward visible proof (which is not described in this booklet). Ying-Yang Globe by Philip Chapman-BellMake your own Yin-Yang Globe. Four Corners Puzzle by Chris MaslankaPuzzle No. 1: Fold the square so that all four cacti stand in the same straight line. No ripping or cutting?just plain old-fashioned folding! Puzzle No. 2: Fold the square so that all four of the spotted cacti stand upright and equally spaced in a straight line. No ripping or cutting - just plain old-fashion folding! Puzzle: Chris Maslanka. Artwork: Linda Benton Cross Checker Paper Folding Puzzle 8-sided Flower Tower by Chris Palmer8-sided Flower Tower from a sheet of 8-inch square paper. Original design by Chris Palmer. Folded by Ravi Apte. Wolfram Paper Sculpture Kit by Wolfram AlphaAffectionately known as the "Wolfram|Alpha spikey," this 3D object has many interesting mathematical properties. Tetragon in a tetragon by Rinus Roelof Ezigami G4GX by Simon Bexfield The Bathke Shape Idea from Robert Reid Cut & Assemble Icosahedra: Twelve Models in White and Color (book) by Eve TorrenceWhen studying solid geometry, there is no substitute for holding a model in your hands, and this fun but challenging book offers that very opportunity. Twelve cut-and-assemble models of icosahedra offer children and professional mathematicians alike a tangible way to appreciate the structure and intrinsic beauty of polyhedra. The models range in difficulty from simple to complex. Some feature colors that reveal their relationships, and all five underlying shapes are rendered in white to emphasize their overall structure and to allow model-makers to color them as they wish. This hands-on educational activity book includes complete step-by-step instructions and diagrams for assembly plus mathematical explanations of the geometric shapes. Ideal classroom tools for teachers of high school and college geometry courses, these models are also charming diversions for papercraft hobbyists. Your box will contain one of the following: Octa-Tri-Flexagon by Ann SchwartzFold it up . . . then flex. Find all eight solid-colored faces -- and more! Octa-Isosceles-Hexaflexagon by Ann SchwartzDon't be satisfied with just the traditional hexaflexagon. How many faces can you find? Cross Checker Paper Folding Puzzle by Ryuhei UeharaThis is a paper folding puzzle. You are given two rectangular sheets of paper with some slits. Your mission is to fold and weave them to a cross check that you can find in the bag. Polygon Puzzle by Ryuhei UeharaYou can obtain a box of size 1x1x5 by folding blue lines and you also can obtain a box of size 1x2x3 by folding red lines! Six puzzles are included in this package. Each paper polygon makes 2 boxes!
Price: 22.22 USD
Location: Burlingame, California
End Time: 2024-11-20T18:00:01.000Z
Shipping Cost: 0 USD
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All returns accepted: ReturnsNotAccepted
Material: Paper
