##### The Star Tetrahedron

##### The Rhombic Dodecahedron

##### The Cube Octahedron (Vector Equilibrium)

##### The Icosa-Dodecahedron

##### The Rhombic Triacontahedron

##### The Nested Platonic solids

##### Introduction to the Phi ratio

##### The Fibonacci Series

##### Properties of Phi

##### The Construction of the Pentagon Part I

##### The Construction of the Pentagon, Part II

##### The Composition of the Pentagon

##### The Decagon

##### Constructing a Golden Mean Spiral

##### A Geometric Determination of the Equation of the Golden Mean Spiral

"I'm studying to become a carpenter and earlier this year I got a challenge to make an icosahedron from 10cm by 10cm by 10cm cube. Well, it didn't work out at all since I was totally clueless about the angles etc. I just couldn't figure them out by myself.

"After reading your articles I think I understand platonic solids a little better now. Very interesting stuff!

"Here's a few photos I'd like to share with you since you helped me so much. Without you I couldn't have constructed this."

---Otso Silvo