Traditional Chinese objects

Source: Wikipedia. Pages: 135. Chapters: Gunpowder, Rocket, Crossbow, Compass, Kite, Flamethrower, Naval mine, Gnomon, Red envelope, Armillary sphere, Dragon boat, South Pointing Chariot, Seal, Chopsticks, Paper, Seismometer, Chinese swords, Dzi bead, Horse collar, Trip hammer, Lacquer, Wheelbarrow, Dao, Suanpan, Jian, Joss paper, Fire Arrow, Bamboo-copter, Chain pump, Nine Tripod Cauldrons, Kang bed-stove, Rice paper, Chinese yo-yo, Hook sword, Inkstick, Luopan, Chinese Inkstone, Jade burial suit, Hell bank note, Imperial Seal of China, Bi, He zun, Baoding balls, Chinese scholar's rocks, Butterfly sword, Spirit tablet, Zhanmadao, Chopstick rest, Three ancestral treasures, Dadao, Bamboo and wooden slips, Changdao, Chinese candy box, Cong, Chinese boxes, A Fu. Excerpt: A rocket or rocket vehicle is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engine. In all rockets, the exhaust is formed entirely from propellants carried within the rocket before use. Rocket engines work by action and reaction. Rocket engines push rockets forwards simply by throwing their exhaust backwards extremely fast. Rockets for military and recreational uses date back to at least 13th century China. Significant scientific, interplanetary and industrial use did not occur until the 20th century, when rocketry was the enabling technology of the Space Age, including setting foot on the moon. Rockets are used for fireworks, weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight and space exploration. While comparatively inefficient for low speed use, they are very lightweight and powerful, capable of generating large accelerations and of attaining extremely high speeds with reasonable efficiency. Chemical rockets are the most common type of rocket and they typically create their exhaust by the combustion of rocket propellant. Chemical rockets store a large amount of energy in an easily released form, and can be very dangerous. However, careful design, testing, construction and use minimizes risks. Early Chinese rocket.The availability of black powder (gunpowder) to propel projectiles was a precursor to the development of the first solid rocket. Ninth Century Chinese Taoist alchemists discovered black powder while searching for the Elixir of life; this accidental discovery led to experiments as weapons such as bombs, cannon, incendiary fire arrows and rocket-propelled fire arrows. The discovery of gunpowder was probably the product of centuries of alchemical experimentation. Exactly when the first flights of rockets occurred is contested. A common claim is that the first recorded use of a rocket in battle was by the Chinese in 1232 against the Mongol hordes at Kai Feng Fu. This is based on an ol