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. Bucolic Cube by Yasuhiro HashimotoThree simple, identical pieces can be assembled to form a cube shape. This delightful puzzle is in the Goldilocks zone, "just right" tricky enough to challenge even experts, yet still easy enough for novice solvers. It can even be solved by accident! Fit all 3 pieces inside a 3 cm cube. For hints, analysis, solution, and more, visit https://vorth.github.io/vzome-sharing/2024/01/21/06-52-35-cube-puzzle-solution/. 8 Cubes by Ben ChaffinThere are two puzzles in these eight cubes, both with the same goal: assemble the small blocks into a 2x2x2 cube, so that each side of the larger cube is a solid color, and all its sides are different colors. For an easier puzzle, solve it so that the side labeled "G4G" is visible; for a more difficult challenge, solve it so that "G8" faces outward. Cube 2 colors by Kagen SchaeferG4G8 gift made of wenge, poplar, pine Lateral Thinking designed by Brian Young, crafted by Allan BoardmanSmall Wooden Puzzle. Hinged Triangle-Square by Laura TaalmanBased on Dudeney's classic Haberdasher's Puzzle3D printed in one piece, fully assembled Triangle to Square by Dick Esterle Can you make a cube? by Lambert BrightPuzzle Objective: Construct a cube from the three pieces. When is a square a square? by Wayne DanielIt has been proven that four measurements are sufficient to determine that a square with a given edge dimension is square. What are the four measurements? The enclosed pieces illustrate why some choices are not sufficient. One has four equal length edges, one has four face-angles equal to 90 degrees, one has two, equal edge-lengths and two face-angles equal to 90 degrees. All three are not square. These 4 pieces can be arranged . . . by Norton StarThese four pieces can be arranged to form various figures, notably a Greek cross, a solid square, and a solid irregular pentagon. Here are a few challenges: Make i) a solid square, ii) a Greek cross with a square in the middle, iii) a square with a Greek cross in the middle, and iv) an irregular, solid pentagon. The puzzle was crafted from cherry wood (see maker at BillSheckels.com). Find the # of figures by Douglas A. AngelsFind the # of figures each with 3 through 12 edges. Objective: Symmetric Shape by Bram Cohen Blocked Box by Henry StroutThis is a fun packing puzzle box... with a block blocking the ability to pack the puzzle box... grrrr. COFFIN...TSKTSK...Looks like fun? Cuboid Wooden Puzzle by Henry StroutPlace 6 pieces inside the box. Ziggy by Jaap ScherphuisThis puzzle is based on the fact that 1+2+3+4+5+6+7+8 = 6^2.Place the 8 pieces in a 6x6 square. The puzzle has two (closely related) solutions.Laser cut by Peter Knoppers Twelve card assembly for G4G12 by Andrea HawksleyRhombicuboctahedron3D Shapes by Robert Reid and Simon BexfieldWhat is the volume of the tetrahedron? What is the volume of the triakis tetrahedron? How do you cut a rectangular block of cheese into three equal amounts?How many cuts do you need using a) a straight knife? b) a cheese wire?
Price: 72.27 USD
Location: Burlingame, California
End Time: 2024-11-20T18:00:01.000Z
Shipping Cost: 0 USD
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