Plasma irradiation removes graphite from the pencil lead, exposing a thin layer of clay. By controlling the exposure time, the thickness of this layer can be varied to modulate the infrared (IR) ...

Laptops may have made hand-writing notes a thing of the past, but the pencil — or at least pencil lead — is making a comeback, as UA researchers are developing ways to use pencil lead as a conductor ...

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 set of six short wood and ...