I never learned to use a slide rule, but certainly did learn how to read vernier scales, mainly on calipers and micrometers.

https://hackaday.com/2026/02/18/sliderule-simulator-teaches-you-how-to-do-calculations-the-old-fashioned-way/

Sliderule Simulator Teaches You How To Do Calculations The Old Fashioned Way

Ever wanted to know how engineers made their calculations before digital calculators were on every workbench? [Richard Carpenter] and [Robert Wolf] have just the thing—a sliderule simulator that ca…

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