Contributor to the eGranary Library at the University of Iowa
I am providing newly typeset pages from the Second Edition of the book, replacing the old rubbishing HTML 4 pages. The digital version of the Second Edition is available now; the print version is coming in early 2019.
Note: These papers do not contain the reference charts, bookmarks, and links to each section and Figure, as does the book. But they are a lot easier to read than the old ones!
The Platonic Solids
Phi and the Pentagon
Having fun with Geometry!
An interesting method of determining square roots:
The Binary Circle/Sphere Pattern and the Binary 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."