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Demonstrations 1 - 20 of 448
Rolling a Tetrahedron over a Deltahedron
New this week
Meeting Point in a 3D Maze
3D Swing-and-Twist Hinged Dissection of One Regular Heptagon into Seven
3D Twist-Hinged Dissection of Triangular Prisms
3D Twist-Hinged Dissection Doubling the Number of Sides of a Polygon
3D Twist-Hinged Dissection of One Regular Pentagon to Four
3D Freese's Dissection of a Regular Dodecagon into Two Squares
3D Twist-Hinged Dissection of One Regular Octagon into Four
Encounters in a Polyhedral Maze
Covering Maze with Tweaks
Theobald's Heptagon-to-Square Dissection in 3D
3D Theobald Decagon-to-Square Dissection
Theobald's Nonagon-to-Square Dissection
Kids' Cryptography with a Key from a Propositional Puzzle
Symmetries of Icosahedron Puzzle
Permutation Sorting
3D Templates for Mazes on Polyhedral Nets
Kids' Cryptography with a Key from a Frieze Pattern
Proposition Puzzle Cryptography
Kids' Cryptography Based on a Boolean Ring
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Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
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