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 duplex aluminum linear slide ...
William Oughtred, as well as others, developed the slide rule in the 17th century based on the emerging work on logarithms by John Napier. Slide rules became increasingly popular in the 1950s and ...
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback