Math 181.S96, Lecture 2W, 10 April 1996
How to orient a temple
The vesica piscis
Celestial north by bisection
The oriented square
The defense of the pyramidiots by Tons Brunés
The circle's rectangle: the symbol "Q"
pyramid section and the symbol "Q"
pyramid plan and the symbol "U"
The silver section
pyramid section and the symbol "K"
Ralph H. Abraham, 18 April 1996.