Contentment by design

Rabbit holes


Lamps

Rabbit holes
Da Vinci
Divine proportion
Dodecahedron
Dymaxion
Euclid
Golden mean
Hexagon
Icosahedron
Icosidodecahedron
Making a lamp
Motivation
Octagon
On my workbench
Pentagon
Pacioli
Paper
Plato
Rhombicosido-
  decahedron
Rhombicub-
  octahedron
Symmetry
Truncation
Wood
Zometool
Reviews
Tools
Tool sources
Books
 

 « · O · » 

The icosahedron – The golden mean shows up again

Here's the lamp in a rough, partially finished state. You can see the three golden rectangles outlined in maple, mahogany, and walnut. (Scale: a side of a triangle = 10".)


Icosahedron with golden rectangles


A visual hint of its relationship to the dodecahedron. The icosahedron has 20 faces, each of which is a regular or equilateral triangle (equal sides and equal interior angles). Each set of five triangles that touch at a tip (vertex) form the outline of a pentagon, so you can also see 12 overlapping pentagons in the icosahedron. This is a visual hint of its relationship to its dual, the dodecahedron.



« · · · · · · · · · · 10 · 11 · 12 · » 

purrrrrrrr

Home · Woodworking · Reading · Enjoying life
Woodworking · Shoji lamps and rabbit holes · Recipe for contentment

Who am I? · Hello, hello?