Interesting things to make out of paper—from mathematical models to toys.
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Torus from Villarceau Circles
Fold a Tetrahedron from an Envelope
Platonic Solids Kaleidoscope
Business Card Platonic Solids
Gaze-following Dragon
Zoetrope
Moiré Motion Illusion
Tie a Pentagon
Turn an Equilateral Triangle into a Square
Hyperbolic Paraboloid
Make a rhombic spirallohedron
Icosahedron from Three Golden Rectangles
Weave a Cube I
Platonic Solid Globes
Golden Ratio Dividers
Weave a Cube II
Cut Out an Angelfish with One Straight Cut
Fractals in Christmas Ornaments
Impossible Flap?
Trihexaflexagon
Look Through a Tube, See a Square Opening
Look through a tube, See a triangle
Möbius Shorts
Phenakistoscope
Toy Rocket
Make a Geodesic Dome out of Newspaper
Cut a Sine Wave with One Straight Cut
Turn Two Octahedra into a Rhombic Dodecahedron
Butterfly Ball
Hyperbolic Paraboloid and Plücker's Conoid
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