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who invented the pencil, i don't know

a pencil works because the sufrace of the paper, on a microscopic level, is very rough. the structure of the graphite that makes up the "lead" is of layers just 1 atom thick that can easily slide over each other and rub off upon contact. so when the pencil is moved over the paper, the rough surface causes the graphite to rub off onto the paper and become trapped in the dips and hollows of the surface

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13y ago

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