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 ...

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 ten-inch duplex linear mahogany ...

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 ...

MESSRS. JOHN DAVIS AND SON, of Derby, the A well known instrument makers, are bringing out a variation of the slide rule which is likely to. increase its value for certain classes of calculation ...

In the grand scheme of things, it really wasn’t all that long ago that a slide rule was part of an engineer’s every day equipment. Long before electronic calculators came along, a couple of sticks of ...

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 slide ...