पेंसिल का अविष्कार invention of pencil in Hindi

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Discover the fascinating history of the pencil's invention and learn key facts about its creation. The pencil was invented in the 16th century in Borol, England, with graphite discovered as its core component. Graphite is composed of a layer of carbon atoms which gives the pencil its unique properties. • Nicolas Jacques Kahn revolutionized pencils in 1975 by blending water clay with graphite, heating it to 1900°F, and enclosing it with wood. The assay of different clay-to-graphite ratios resulted in the HB scale, determining the hardness and shade of pencils. This intricate process provides varied shades and strengths, essential for writing and art. For an insightful journey into the pencil's history, its components, and its development over time, be sure to like and subscribe. • RELATED QUESTIONS: • youtube seo • seo youtube • youtube seo full course • how to seo youtube videos • seo para youtube • youtube video seo • seo for youtube channel • youtube seo course • youtube seo client hunting • what is the best ai tool for rewrite youtube video • what is the best ai tool for your captions on youtube • how to pick best name for youtube channel ai tool • best ai tool for youtube • what ai tool is best for youtube description • how to get best title for youtube video ai tool • Complete 4000 Watch Hour In 1 Month | How To Complete 4000 Hours Watch Time Fast | How To Get 4000 Hours Watch Time • Are you struggling to hit the 4000 watch hours required for YouTube monetization? In this video, I'll reveal 5 powerful methods to help you achieve 4,000 watch hours in just 1 month! Whether you're a new YouTuber or looking to grow your channel, these strategies will guide you through the fastest way to reach that 4k watch hours milestone. • #moresubscribers2024 #moreviews2024 #growyourchannel

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