usually pencil sharpeners are made of plastic and metal.
The best places to go for pencil sharpeners are Office Depot, Office Max and staples, but anywhere that would sell art or school supplies will have pencil sharpeners.
No.
Pennsylvania
That would be its inventor, Bernard Lassimone
If you are looking for mechanical pencil sharpeners, local office supply stores are a good starting point. If they do not carry them, they can mostly likely direct you on where to find them.
from staples.
Well there is Carbon, Hydrogen, and Oxygen which makes up the plastic outside of a pencil sharpener. To know what element can be found inside you would have to know what a pencil sharpener is made up of on the inside.
So that you'll be able to sharpen pencils of course!
A pencil sharpener typically consists of a metal or plastic body, a blade for sharpening the pencil, and a receptacle for collecting shavings. Some sharpeners may also have components made of rubber or other materials for grip and stability.
Carbon is used in pencil sharpeners in the form of graphite, which is a carbon allotrope. Graphite is a soft material that easily shears off as pencils are sharpened, allowing for a new, sharp point to be exposed. The rubbing of the pencil against the inner blades of the sharpener grinds away the graphite, creating the fine pencil shavings that are collected in the shavings compartment.
Pencil sharpeners typically use a combination of a blade and a gear mechanism to sharpen the pencil. As the pencil is inserted into the sharpener, the blade shaves off the wood and graphite, while the gear mechanism rotates the pencil to achieve an even sharpening. The force for turning the gear mechanism can come from either manual hand-cranks or electric motors depending on the type of sharpener.