If you’ve never really learned why a slide rule works or you don’t know how to work one, you’ll find the explanation in the video very intuitive and enlightening.

If you want to make your own conventional cylindrical rule, [Chris] did the work for you already. Don’t know about slide rules at all? Maybe start here.

Titaner's new Mix 3.0 ain't your average ruler. The clever dual-scale device boasts attributes such as an extendable measurement system, a measuring caliper, a magnetically retained pen, and a ...