The folding action of the ruler also lets you draw perfect circles of various radii, by sticking the tip of a pen or pencil in one of a number of marked holes in one of the arms, then swinging it ...

A Golomb ruler is very different from your run-of-the-mill tape measure. These strange rulers are defined in terms of constraints, and are “optimized” when they are the shortest they can be.

This is the essence of TheKomi Ruler, a compact yet powerful sketching and drawing multitool for designers who navigate the intricate realms of both sketching and digital design. It’s the ...