3 ms·
Some early writing implements actually did use lead (Pb). Here's something da Vinci sketched in leadpoint (in part): https://www.britishmuseum.org/collection/o
by perihelions 5y ago
Some early writing implements actually did use lead (Pb). Here's something da Vinci sketched in leadpoint (in part):
https://www.britishmuseum.org/collection/object/P_1860-0616-100 https://www.britishmuseum.org/collection/object/P_1860-0616-...
Really looks like modern (graphite) pencil, doesn't it? (Unless I've misunderstood which parts are lead and which aren't -- but I think I've interpreted it right).
edit: Here's a technical article about how you can positively identify lead (Pb) in medieval drawings, and distinguish it from silver and other metals. (In case anyone was still skeptical). They show a variety of other examples.
https://sci-hub.se/10.1179/sic.2009.54.2.106 https://sci-hub.se/10.1179/sic.2009.54.2.106 ("A Note on the Examination of Silverpoint Drawings by Near-Infrared Reflectography")
- quesera 5y agoTrue. Metalpoint is not traditionally considered "pencil", but it can definitely be used for writing/drawing and the stylus has the same appearance and basic use. Anecdote: In ~5th grade science class, we had a folded sheet of metallic lead that was passed around for students to handle. I suspect this practice has been discontinued! At the time, I thought pencils contained real lead (Pb), so I tried to use the lead sheet to mark paper. It worked well! But not as well as (and had different marking characteristics from) a regular pencil. I assumed the improvements were part of the productization, but that the pencil still used real lead. Wikipedia says, on the discovery of naturally-occurring graphite: > Chemistry was in its infancy and the substance was thought to be a form of lead. Consequently, it was called plumbago (Latin for "lead ore"). It's funny how names stick. 500 years and counting on this one.