Science

Slide rules are useful for doing gear calculations. Briefly describes a method for doing so.

Basic facts involving the development of the slide rule. Includes diagrams and links to information on various types of slide rules.

Explains how to multiply, find cube and square roots and other operations. Includes illustrations.

Specification forming part of Letters Patent No. 249117, dated November 1, 1881. Includes diagrams.

Templates, directions, and some links to other slide rule sites.

Slide rule resources and links.

Short lesson.

Explains how to use the different scales to multiply and divide.