### The Joy of Slide Rules

Non-logarithmic slide rules (pdf)

The scale on a slide rule doesn't have to be logarithmic. It could be a

**triangular number**scale.

Mystery of Log Log Scales

How to use Log Log scales to raise numbers to non-integral powers, like 3.14

^{2.71}

Slide Rule Simulator

A windows EXE app that lets you construct and test a virtual slide rule. The help file is good - it explains how to actually do the various calculations on the rule.

**UPDATE**: My own attempts at a slide rule emulator can be found here, here and here.

Graphical List of Scales

An image showing every possible scale you might encounter on a slide rule.

**The SUV's of Slide Rules**

The Pickett N4 probably holds the record for being the slide rule with the most scales (34), but the Faber Castell 2/84N "could be considered the culmination of the development of the slide rule by one of Europe's leading manufacturers." Better pics of the N4 here.