What was gunpowder originally used for? A. Making weapons B. Building houses C. Making fireworks D. Farming 相关知识点: 试题来源: 解析 C。解析:“It was originally used for making fireworks and later developed into weapons.”,火药最初是用来制作烟花的。
2 Gunpowder, papermaking, printing, the compass, the steam engine, the telephone, the radio,virtual reality(虚 拟现实) , wearable tech(可 穿戴科技设备) ,the flexible battery(柔性电池),the 3D printer, the intelligent walking house, the wheel, the car, new energy vehicles, and the time mach...
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What is modern gunpowder made of? Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists ofa mixture of sulfur, carbon (in the form of charcoal) and potassium nitrate (saltpeter). The sulfur and carbon...
Chinese alchemists accidentally discovered gunpowder while searching for an elixir for immortality (or so the story goes). Ironic, considering what it’s used for, don’t you think? Its introduction to Europe around 1300 would have an enormous effect (the first recorded use was by the English ...
All of these increased the defense of castles.The end of castles can be attributed to gunpowder. During A. Fancy Living: Learning about Castles the 15th century, artillery, a kind of large guns, became B. Normans: Bringing Castles to England powerful enough to break through stone walls. ...
A. gunpowder B. papermaking C. the compass D. the first pencil (5) Which of the following is TRUE? A. The pencil was first produced in China in 1662. B. There is an exact answer to the question about who invented the pencil. C. People showed their feelings by drawing pictures on...
citation linkage to her own ideas by virtue of inter alia being a woman, perhaps tempered mildly due to links to extremely academically powerful mentors: Masterman was one of the first people in the world to attempt machine translation, and she made seman- tics, not syntax, the driving ...
WHAT GUNPOWDER PLOT WAS 1604. Nov. 28. Fines required from thirteen Catholics rich enough to pay 2,01. a month. About Dec. Bates sworn. About Dec. 11. The five conspirators begin to dig the mine. Before Christmas. The diggers having ...
gunpowder and highly compressed hydrogen to fire projectiles at speeds far beyond that of a regular gun. The study revealed that the creatures could survive impacts up to about 900 meters per second into a target made of sand, and momentary shock pressures of up to 1.14 gigapascals (GPa). ...