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 paper linear slide rule was ...

For all those engineers who dabble in music [Magnetovore] has your back. Musicians simply must know their scales and he came up with a papercraft slide rule for major and minor scales. The system is ...

IN this book the author provides and explains then use of two graduated scales, placed adjacent to each other for comparison and fixed together, on one of which numbers can be read off, and on the ...