Interesting things to make out of paper—from mathematical models to toys.
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Pentominoes
Turn Four Cubes into a Truncated Octahedron
Slide-Together Globe
Fold a Hyperbolic Paraboloid
30-Celled Collapsoid
Clifford Torus
Weaire-Phelan Structure
Ellipse by folding
Fold a Hyperbola
Fold a Parabola
How to Cut out Copies with a Pattern
Key to Symbols in Fold Diagrams
General Instructions for Folding and Gluing a Polyhedron
Magically Appearing Square I
Dodecahedron from a Cube
Fold a Golden Rectangle
Golden Spiral
Hexagonal Cross-Section of a Cube
Disappearing Square II
Fold a Tetrahedron and a Box from the Same Net
D-Forms
Square Twist
Möbius Polyhedral Model
Flexatube Puzzle
Impossible Triangle
Fold an Equilateral Triangle of a Given Side Length
Impossible 4-D Quadrilateral
Fold an Octagon II
Fold a Series of Equilateral Triangles
Fold an Equilateral Triangle from a Circle
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