You get two choices of pen nib - one soft, one hard - and each measures a precise 6 mm in diameter of conductive material suitable for any capacitive touchscreen tablet experience - be that iPad, Android or anything on Windows 8 and Windows RT.. (pocket-lint.com)
Researchers have long sought electrically conductive materials for economical energy - storage devices. (sciencedaily.com)
March 14, 2017 — Researchers have long sought electrically conductive materials for economical energy - storage devices. (ornl.gov)