Howto Make Dc Motor Boat

China

The first settlements on the Yellow River date from the fifth to sixth millennium BC, as evidenced by the fossils found in the valley of Huang-ho and Yang-Tze-Kiang. The population is mainly devoted to the cultivation of millet and rice, thanks to the natural terrace on the banks of rivers, and the breeding of domestic animals (pigs). The Chinese people's attachment to the land has been preserved intact to this day. The village houses are built in ancient China straw, stone and clay. Only in the second millennium BC spread metallurgy. The culture is very developed. As in most agrarian societies have established a timetable based on the phases of the moon to split the annual cycle. It 'also flourishing study of astronomy, mathematics and medicine. No less important is the role of art in Chinese society. The Master Confucius, ethical and moral leadership of the Chinese population, places the music in the six arts to teach and tramadare. With the culture it is also alleged Chinese writing , based on an organization and an original method with respect to western writing.

Technology è applicata alla metallurgia, all'artigianato tessile e all'agricoltura. La ceramica cinese viene prodotta mediante l'uso della ruota da vasaio e tramite stampi. Di grande importanza è anche l'invenzione della carta nel II secolo a.C. e l'allevamento del baco 
da seta nel settore tessile.

Dinastie cinesi:

Il governo del Paese è affidato a sovrani e imperatori ereditari. La prima dinastia ereditaria cinese di cui si ha notizia è quella degli Shang. Durante la  dinastia Shang  fa appeared that the ideographic Chinese writing is still the base of the Chinese writing system. The Shang has features typically feudal empire. The majority of the population is dedicated to agriculture and has the obligation to pay taxes to the nobles. The territory occupied by the Shang dynasty is relatively small compared to the great China, and is surrounded by other feudal kingdoms of minor importance. The continuous incursions of the tribes of Mongolia characterize the Chinese history. The same Shang Dynasty remains overwhelmed. In the first millennium BC, the territories falling under the control of the warlike tribe of Chou that maintain and strengthen the system of feudal society. With ups and downs of the Chinese Empire has its moments of expansion and disintegration. In 500 BC, the fifteen major cities in the Chinese territory become independent states, starting to contend for control over territories and surrounding neighbors. It 's the era of the "Warring . The state of perpetual war provides a great advantage to metallurgy. The introduction of iron indirectly allows to increase agricultural productivity and the construction of large public works. In this period of history to ancient China is experiencing a phase of rapid population growth.