IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This yellow aluminum circular slide ...

Around here we mostly enjoy slide rules. We even have our own collections including some cylindrical and circular ones. But [Mathologer] discusses a recent Reddit post that explains a circular slide ...

It was the only technological tool widely and continuously used for over three centuries. For math and science geeks it was a badge of honor, nestled neatly into a plastic pocket protector along with ...

A unique timepiece has been created by Caliper in the form of the Slide Rule , a watch mechanical watch with an integrated slide rule, that comes supplied with a separate circular steel slide rule.

When is a line not a line? When it’s a series of tiny dots, of course! The line is actually tiny, laser-etched craters, 0.25 mm center-to-center. That’s the technique [Ed Nisley] used to create a ...

The slide rule, sometimes called a slipstick, was a type of mechanical analog computer. It was and still is, used primarily for multiplication and division, and also for functions such as roots, ...