(KUTV) For literally hundreds of years, they have been called "lead pencils," despite the fact that what is really inside them is graphite. According pencils.com, it all dates back to England in the ...

The first time I ever really noticed a pencil was in the fourth grade, when a classmate stabbed me with one that had been freshly sharpened to prison-shiv standards. The “lead” tip snapped off under ...

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 four short (less than 3-1 ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Save this article to read it later. Find this story in your account’s ‘Saved for Later’ section. Back-to-school shopping means loading up your cart with notebooks, pens, colorful stationery doodads, ...