This circular slide rule consists of a silver-colored metal dial, 8-1/2" wide, mounted on a silver-colored metal disc. Three oblong holes on the base disc permit the reading of trigonometric scales on ...

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 linear slide rule reflects ...

Ollech & Wajs revived its “computer” watch from the 1960s, proving slide rule bezels are the most underrated watch feature. Every product is carefully selected by our editors. If you buy from a link, ...

Slide rule bezels are arguably the most underrated watch feature. Although the technology is antiquated, like most watch features, it is unique, fun to play with and a great conversation starter. The ...

Back when my kids were younger, I would periodically complain about the deafening racket coming out of their rooms that they passed off as music. The answer that came back was always the same: If it's ...