Pencils was invented in 1564, that was maybe after, the feathers. The inside of a pencil is the lead and wood. It takes a lot of work to make a pencil; it probably has ten steps or more in doing it. It was discovered in Borrowable, Cambria, England.
Look at the end of a brand-new wooden pencil before sharpening it; it appears that the wood casing is one solid piece. This you might know that pencil-makers put a hole straight down the middle of the wood and then slip in a long piece of lead. Although pencils are constructed in a manner, it is not how most wooden pencils are produced today.
Today, most wooden pencils are produced from large blocks of cedar cut into pencils shape. A machine cuts eight grooves, half as deep as the graphite-clay rod is thick, into the slats, and then places rods in each groove. Once the rods is in place, a second grooved slat is glued on top of the first. When the glue dries, the slats are fed through a cutting machine that cuts the wood into various shapes and divides the slats into eight separate pencils. The seams where the two slats are joined are sanded down and several coats of paint are applied to the pencil, giving it the appearance of a solid structure.
Most pencils are made of cedar wood. Cedar can be found by the Great Lakes.Pencil lead is made from a form of carbon called graphite. Graphite cannot be found easily in the U.S. It is mainly imported from Sri Lanka or parts of Canada. This graphite is then mixed with wax and clay. This wax is found mainly in Mexico, while the clay is found in the Southern parts of the U.S. Ferrule, holds the eraser to the wood, is made up of zinc and copper.
Zinc is found mainly in Canada, while copper is found mainly in Chile. The eraser is composed of rubber, which comes from a rubber tree, seed, oil, and pumice. Rubber trees are most abundant in the Democratic Republic of Congo in Central Africa. Seed oil is found in Indonesia and pumice is found in Italy.
Pencils create marks via...