e-sygoing.link — Slide Rules https://e-sygoing.link Latest links in the Slide Rules category en-us Tue, 09 Jun 2026 21:55:36 -0400 The Scales of the Slide Rule https://e-sygoing.link/link/5282476-the-scales-of-the-slide-rule Various scales in a convenient tabular form. Includes mathematical formulation of the scales. Wed, 03 Sep 2025 17:39:04 -0400 https://e-sygoing.link/go/5282476 Edwin Thacher's 1881 Slide Rule Patent https://e-sygoing.link/link/5282479-edwin-thachers-1881-slide-rule-patent Specification forming part of Letters Patent No. 249117, dated November 1, 1881. Includes diagrams. Sun, 02 Mar 2025 20:09:51 -0500 https://e-sygoing.link/go/5282479 Internet Slide Rule https://e-sygoing.link/link/5282484-internet-slide-rule Internet port of history's most heavily used advanced calculation aid. Thu, 23 Jan 2025 09:59:28 -0500 https://e-sygoing.link/go/5282484 Eric's Introduction to the Slide Rule https://e-sygoing.link/link/5282483-erics-introduction-to-the-slide-rule Slide rule resources and links. Wed, 04 Dec 2024 21:02:10 -0500 https://e-sygoing.link/go/5282483 Napier's Bones https://e-sygoing.link/link/5282475-napiers-bones A story about the use of a 6-inch Pickett "all-metal" slide rule (Model N 200-ES), with case. Sun, 21 Apr 2024 11:31:22 -0400 https://e-sygoing.link/go/5282475 Make Your Own Circular Slide Rule https://e-sygoing.link/link/5282482-make-your-own-circular-slide-rule Templates, directions, and some links to other slide rule sites. Sat, 06 Apr 2024 07:38:01 -0400 https://e-sygoing.link/go/5282482 Slide Rule as a Teaching Tool https://e-sygoing.link/link/5282472-slide-rule-as-a-teaching-tool Examples of how the slide rule is a useful tool for teaching the mathematical concept of transformations. Examples and illustrations. Sat, 23 Mar 2024 06:24:08 -0400 https://e-sygoing.link/go/5282472