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Truth, Beauty, Charm, Strange


The Joy of Slide Rules

Unexpectedly, the sliderule bug has bitten me fast and hard...

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 3.142.71

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.


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