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.
usually pencil sharpeners are made of plastic and metal.
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.
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.
Bernard Lassimone, a French mathematician, invented the standard manual pencil sharpener in 1828. In 1847, Therry des Estwaux invented an improved mechanical sharpener.
So that you'll be able to sharpen pencils of course!
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.
A pencil sharpener uses a blade that rotates around the pencil shaving the wood back from the lead into a point so that it makes a point. A knife sharpener works by using a chunk of metal harder than the knife to shave metal off of the knife into a point to make it sharp.