09/19


Rhombic Dodecahedron Common Cross Section of a Cube and its Dual Stellation of Rhombic Dodecahedron Formed with Six Burrs Turning Cube Inside Out I Turning Cube Inside Out II
919_1 919_2 919_3 919_4 919_5




09/26


Stellation of Rhombic Dodecahedron Formed with Six Burrs Five Regular  Tetrahedrons Cannot Form a Circle Puzzle of 12 Prism
926_1 926_2 926_3



10/03


Self Dual Complement I Complement II Complement III Complement IV Triangular Cupola
Square Cupola Small Rhombicosidodecahedron(Square Cupola) Great Rhombicosidodecahedron(Square Cupola) Pentagonal Cupola Small Rhombicosidodecahedron(Pentagonal Cupola) Great Rhombicosidodecahedron(Pentagonal Cupola)
Buckminsterfullerene I Buckminsterfullerene II



10/17


The Square as an Image of a Concave Quadrilateral The Square as an Image of a Concave Quadrilateral II Cube Projected on Cube Cube Projected on Truncated Octahedron Tetrahedron Projected on Tetrahedron Tetrahedron Projected on Cube



10/24


Animation of Rhombohedron Rhombic Dodecahedron Animation of Rhombic Dodecahedron Rhombic Triacontahedron Rhombic Icosahedron Animation of Rhombic Icosahedron
Animation of Rhombic Polyhedron with 132 Rhombic Faces Rhombic Polyhedrons I Rhombic Polyhedrons II Rhombic Polyhedrons III Tetrahedron 5-Compound Rhombic Icosahedron in Regular Octahedron in Regular Tetrahedron in Cube in Rhombic Dodecahedron
Rhombic Icosahedron in 5 Regular Tetrahedrons in Rhombic Dodecahedron



10/31


Regular Octahedron in Cube I Regular Octahedron in Cube II Regular Icosahedron in Regular Tetrahedrons in Regular Dodecahedron Regular Icosahedron in Regular Octahedron in Regular Tetrahedron in Cube in Regular Dodecahedron Rhombic Triacontahedron in 5 Cubes in Regular Dodecahedron Tetrahedron 5-Compound
5 Regular Octahedrons in Regular Dodecahedron 5 Cubes in Regular Dodecahedron Regular Icosahedron in 5 Regular Octahedrons in Regular Dodecahedron



11
/07


Cube Projected on Regular Octahedron Cube Projected on Regular Dodecahedron Cube Projected on Regular Icosahedron Cube Projected on Buckyball Cube Projected on Rhombic Dodecahedron Cube Projected on Rhombic Triacontahedron
Cube Projected on Icosidodecahedron



11/14


12 Sticks in Tight Formation 12 Pencils in Tight Formation 30 Sticks in Tight Formation 30 Pencils in Tight Formation



11/28


Conic Section I Conic Section II 12 Sticks 30 Sticks



12/05


Kaleidocycle I Kaleidocycle II Kaleidocycle III Kaleidocycle IV



12/12


Expansion of Cube Expansion of Cube I(Rhombic dodecahedron) Expansion of Cube II(Rhombic dodecahedron) Expansion of Dodecahedron Turning Regular Dodecahedron into Rhombic Triacontahedron



12/26


Expansion Between Octahedron and Rhombic Dodecahedron Expansion Between Dodecahedron and Rhombic Triacontahedron Expansion Between Icosahedron and Rhombic Triacontahedron



01/02


Plane of z=2xy and Its Tangent Line



01/09


Ring Triangular Mobius and Its Tangent Line