Inventions
Pencil
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A pencil is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage and keeps it from marking the user's hand. Its modern graphite form developed gradually across several centuries rather than through a single inventor or year.
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Pencil (Wikipedia)
WikipediaLead section (entity-description)Quote, Lead section (entity-description)
A pencil is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage and keeps it from marking the user's hand.
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