The DSA is a voluntary, nonprofit educational corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.
This powerful article discusses numbers in the form of two-dimensional plane figures, explaining how polygons show the nature of number and demonstrate the superiority of twelve as a counting base. Richly illustrated and explained.