No.2 pencils are widely used, but you may not know what the number actually refers to. This video explains how pencils developed into their modern form and the significance of the labeled numbers.

"Pencil" is derived from the Latin word "penis" meaning "tail", because Roman writing brushes were made from tufts of fur from an animal's tail. "Lead pencils" achieve the same effect without ...

But you must keep studying the image, as somewhere in among the swirls of colour is a very specific item - the lead from a pencil. The person who posted the image explained the photo shows their ...