My original web site features an extensive section concerning cryptography:

A Cryptographic Compendium

Originally, I had among the pages on other topics, a single page about a map projection of my own. Now, having once again written, this time to run on a PC, a program to draw maps in a variety of projections, this site, the one with materials on topics other than cryptography, now contains:

Map Projections

an extensive series of pages describing several map projections and how to construct them.

I am currently available for opportunities in the areas of computer programming, technical writing, or web site design. My resumé is available on request by E-mail.

You may send me E-mail; my E-mail address is:

From this page, you may go to a table of contents for the pages on the topics hosted here, those other than cryptography. In brief, the available topics are:

Signal Flag Systems
Introduction to HTML
Color Charts
The Musical Scale

Comments on the Rules
The Immortal Game (Anderssen-Kieseritzky)
Leaping Bat Chess
Random Variant Chess
Three-Dimensional Chess

A Computer Architecture
Computer Keyboards
About a Computer Language
Computer Architectural Preferences

Movie and TV Aspect Ratios
A Limitation of Color Photography
Unit Conversions
A Tall Building Design

Telescopes and Eyepieces:
How a Telescope Works
Kinds of Telescopes
Telescope Mountings
Special Bonus Section:
Introduction to Geometrical Optics

A Space Habitat Design
Travel to Mars
Lining up the Planets
The Einstein-Podolsky-Rosen experiments
The Fine-Structure Constant
Punctuated Equilibria

Perpetual Calendars
A Luni-Solar Calendar
A Simplified Calendar Proposal
Julian Day Numbers
A Martian Calendar

Archimedian Solids
The Fourth Dimension
Sphere Packings
Pentagonal Tilings
Rotations of a Dodecahedron
Examples of Groups
Two Famous Equations
Euler's Constant
The Slide Rule
Gödel's Theorem and the Halting Problem
Magic Squares

A Unified Architecture for Telephone Numbers

External Links to Interesting Sites

For convenience in navigation and viewing, you may view this site using frames which provide a table of contents to assist in direct navigation to any part of the site on the left of the screen. As well, an alternate style of frames is available illustrating a more decorative form of site.

Contact Information and Notes

Needless to say, any trademarks referenced are the property of their respective owners, and are used here only for purposes of identification.

As this series of web pages contains some ideas and speculations about how to design and implement ciphers, readers are notified that I am not engaging in providing professional advice in these pages, and are advised to seek the direct advice of a competent professional before embarking on projects using cryptography.

Also, inventions or algorithms described on these pages may be covered by patents other than those directly noted.

Copyright (c) 2000, 2001, 2002 John J. G. Savard