1. If you accidentally prick yourself with a pencil, you will not be poisoned by lead because the pencil is lead-free and contains clay and graphite. Of course, if you stab someone else, you may be taken to court for intentional injury... 2, here is a section of the Watergate event dedicated to people who like to look back on history and gossip: Gordon Lindi has this description in his autobiography, when he came to the office, saw John Dean, the table was sharpened The pencil made a quick flash of thought in his mind, and he was stabbed. (In the Watergate incident, Dean is a traitor to Lindy) 3, Graphite (Graphite), this carbon crystal discovered in 16 actual British Cosway, named in the 18th century by the chemist AGWerner, from the Greek graphein, meaning "writing (action)" 4, while the pencil-pencil is derived from the Latin penicillus, although not so relevant, penicillus means small tail. 5, when the pencil is used for writing, it is basically the performance of its debris stuck in the fibers of the paper. His debris is not large, 1/1000 inch. 6, is it uncomfortable? It is said that an average pen can draw 35 miles long or write 45,000 words (Western). Has anyone tested it? The history shows no. Comrades! The world's first opportunity! ! 7. As early as the first century AD, the Greek poet Philip of ThessalonÃki used a lead writing instrument to write. However, the contemporary pencil was recorded by the Swiss naturalist Conrad Gessner in 1565 (he died that year) 8, the French are the reborn parents of pencils (yes, without them, maybe the world is using a brush): In 1795, Nicolas-Jacques Conté invented the process of making clay and graphite mixed materials. In 1828, Bernard Lassimone invented the pencil sharpener (or pencil sharpener). In 1847, Therry des Estwaux invented the mechanical pencil sharpener. 9, the French (again!) will also make caoutchouc (a kind of gel secreted by plants, which is said to be a combination of Spanish caucho and Tupi (a combination of cau-ucha from the South American language)), so that The wrong word was finally wiped off without breadcrumbs. 10. Basically, the pencils sold in the United States have a rubber head, and the pencils sold in Europe do not. (Does Europeans write less mistakes?) 11, Henry David Thoreau, American writer, philosopher, pencil user. (He should have written as many mistakes as the Europeans.) He wrote the famous prose "Walden Lake" in pencil (I saw it on Amazon, more than 300 pages). In fact, he might use those pencils for free because his father opened a pencil factory in Boston. In 12, 1861, Eber Han Faber established the first large pencil factory in the United States, which was in New York. (In other words, Thoreau’s pencil factory is a local level) 13. At the time of the Civil War, pencils were included in the standard equipment of the Allied (Northern Bourgeois) soldiers. 14, the automatic pencil was invented in 1822, and set up in the United Kingdom to manufacture (estimated that the French have long invented just think that the thing is not romantic - _-), but the factory was in 1941 (may hate pencil) Nazi Germany It was blown up. 15, I am a red pencil ~ ~. After the Soviets seized power in 1917, the American Armand De Hanmer received a monopoly on the exclusive sale of pencils in the Soviet Union. 16, China is a true parent of pencils in a sense. In 2004, China produced 10 billion pencils, which can basically circle 40 equators. 17, you can write with a pencil under zero gravity, so the pencil was taken into space. However, NASA engineers say that in pure oxygen, wood pencils have the potential to burn, and pencil shavings are more dangerous. 18, then Apollo 1 caught fire... Later, a man named Paul Fischer invented the sealing pencil, so the pencil continued to serve the aviation industry. 19, the world's largest pencil æµ at the entrance of the pencil factory in Kuala Lumpur, Malaysia, doing a long sigh. 20 meters high, ingredients: wood and polymer. 20. At the other end of the world, UC engineers painted an atomic force microscope as a pencil (!!!) with a 50-nanometer wide line. Taxpayer's money. garden decoration, garden gifts, garden tools HISMOK(SHENZHEN)TECHNOLOGY CO.,LTD , https://www.fzwilltrade.com