Recent Additions to the Junkyard
These files and pointers have been added to the junkyard or modified since 2011.
- Dérivés
de l'hexagone. Art by Jerome Pierre based on modifications to the edges in a hexagonal tiling of the plane.
- Robert Fathauer's Escher-like tesselation art.
- Fractal knots, Robert Fathauer.
- Frustro, a font made of Escherian impossible figures.
- Gavrog, a Java package for
visualizing 2d and 3d ornamental patterns with high degrees of symmetry.
- MagicTile.
Klein's quartic meets the Rubik's cube, by Roice Nelson.
- Origami proof of the Pythagorean theorem,
Vi Hart.
- Seven
circle theorem, an applet illustrating the fact that if six circles
are tangent to and completely surrounding a seventh circle, then
connecting opposite points of tangency in pairs forms three lines that
meet in a single point, by Michael Borcherds.
Other applets by Borcherds
include Poncelet's
porism, a similar porism with an ellipse and a parabola and with two ellipses,
and more generally with two conics of variable type.
- Sierpinski Hamantaschen.
- Tetrahedra
packing. Mathematica implementation of the Chen-Engel-Glotzer packing
of space by regular tetrahedra, the densest known such packing to date.
- Wooden ball-and-stick models of Archimedean solids,
offered for sale by Dr. B's Science Basics.