The Dozenal Society of America

The Society is a voluntary nonprofit educational corporation, organized for the conduct of research and education of the public in the use of base twelve in calculations, mathematics, weights and measures, and other branches of pure and applied science.

Duodecimal Bulletin:

About the Bulletin
Archive Index
Pictorial Synopses
About the Archive

What’s New?

We’ve just mildly reformulated the Duodecimal Bulletin Pictorial Archive Synopses to move common notes off the duodecade pages and into one convenient location on the archive information page. Also, we’ve collected all the history snippets at the bottom of all the duodecade pages into one convenient location for your reading pleasure. This history of the DSA as seen through its Duodecimal Bulletin offers an alternate take on the Society’s past.

Latest Articles

Here we post the newest remastered or created articles at www.Dozenal.org for those of you who’ve been here before. There really isn’t a hard-and-fast standard for newness; these articles simply have been posted recently.

Simply click the thumbnail (the icon) on the left to download the full article in PDF form. Click the Newhall number for articles extracted from the Duodecimal Bulletin or other dozenal publications to download the entire archived original issue. Example: Prof. Jay Schiffman’s “Fundamental Operations in the Duodecimal System” article begins in Vol. 31; No. 3 at page 15; and has a Newhall number of db31315.

Visit the Duodecimal Bulletin Digital Archive

DSA-MT

“Dozenal Frequently Asked Questions”
Michael T. De Vlieger, 2011. NEW!
Answers to a dozen frequently asked questions about dozenal, fully illustrated. Two dozen pages explaining why duodecimal is the optimum number base for general human intuitive computation. Answers include benefits of dozenal beyond the often-heard reasons of the large number of divisors and “easy fractions”. Candid responses describing the drawbacks of dozenal and the benefits of decimal. Updated 11 November 2011!

DSA-MT

“Multiplication Tables of Various Bases”
Michael T. De Vlieger, 2011. NEW!
A continually-expanding set of multiplication tables for positive, integral number bases greater than 2. Current bases (decimal notation) include 2-30, 32, 36, 40, and 60. Updated 7 February 2011!

DSA-MultAnalysis

“Analysis of Multiplication Tables”
Michael T. De Vlieger, 2011. NEW!
The optimum number base may be more or less attributable to a number’s prime factorization. The behavior of a number base’s digits, from periodicity in the multiplication table to regularity in fractions, is governed by the number-theoretical relationships of each digit to the base.

Visit the Duodecimal Bulletin Digital Archive. Revisit this page from time to time to read new or remastered articles espousing dozenal as the ideal civilizational number base.

This page revised Wednesday 30 November 2011.