INDUSTRY AND COMMERCE

The china civilization as we know has changed dramatically and it has brought great contributions to mankind, through development of this test will be presenting the great inventions, which is added and go hand in hand very industry and commerce.

To start there will be a description of each of the inventions and contributions made this civilization to humanity. In the first instance we believe the compass; it had its origin in the fourth century to C. His adaptation and recognition in the West took place nearly 1500 years later. The first Chinese compasses did not use needles. The "indicators" had the form of shells, fish or turtle, increasing the accuracy of reading the introduction of the needle. It was at that time when the Chinese introduced the first markers and indicators, key elements of modern science. This happened in the third century A.D. The magnetic compass needle was built in the seventh century or VIII with a needle floating on the water.

The gunpowder, fireworks and rockets. The birthplace of fireworks is generally recognized as China, with the first explosive mixture found there and called "black powder", during the Sung dynasty (960-1279). It is said that a cook in ancient China found that a mixture of sulfur, saltpeter, charcoal and was highly flammable and if outbreak was included in a small space. The first application of this technology was for entertainment. The Chinese remain the largest producers of fireworks. Once the recipe for black powder was perfected, they found that could easily be used as rocket fuel, rockets and made of wood carved by hand with the dimensions to be placed and the mouth of a dragon, in the sixth century. These arrows driven emerging as rockets from the mouth of the dragon, and were used against the invaders from Mongolia in 1279. The principle of operation of these rockets is still used today in fireworks the money paper. Among the many inventions that we have the ingenuity of the Chinese, seems also counted the paper currency. Since ancient times, Chinese trade conducted on the basis of barter. Until the middle of the second a.C. were used as means to change the so-called "Caura" small shells which have remained in use in parts of Asia and Africa until a few decades ago. The first use "money" of this paper receipts were bank began to be used as means of payment. Obviously, there were no banks themselves, was closed shops that accept deposits of precious metals, which received remuneration pledging to transfer amounts to distances. Stacking and pressed to remove water, and then extended so that the sun was dry, each piece is properly beaten on a surface, such as to prevent the ink ran to write
The printing plant. As early as the second century A.D. the Chinese had developed and implemented in general the art of print texts. As with many inventions, was not entirely novel, since the printing of drawings and images on fabrics you got at least a century ahead in China the impression words.
The great Wall of China, an architectural contribution. The principles of construction of the Wall of China were defending themselves from attacks by nomadic peoples of the north. Although it was built in several stages, the first stage was built on the instructions of Qin Shi Huangdi, also Shi Huangdi, or Ts'in She Huang-Ti (259-210 BC), China's first emperor and founder of the Ch'in Dynasty . There is talk of 400,000 people working in construction during the reign of Qin Shi Huanti and their descendants, however, the Great Wall continued to grow during more than 1500 years, with different materials and characteristics depending on the region, The rulers of the Han dynasty , Followed by preserving and extending the wall. Its construction finally stopped in the seventeenth century during the dominance of the Ming dynasty. It is said that one fifth of the population china contributed at different times in building the Great Wall and that many of the bodies of the workers who died, adding historical documents, used to amortize the weight of the stones. The most famous of the Great Wall, which is located near Beijing, in the locality known as Badaling, was built during the Ming dynasty (1368 to 1644 AD) and is considered Heritage of Humanity.

Each of these inventions have helped over the years to humanity, taking into account that have not been as it were from the outset, but have ido evolved to what it is at present on progress technology and how each of us we have been using