There were also major early developments in mathematics, astronomy, philosophy and literature. And what happened to China is that it stagnated technologically so that by the nineteenth century it was so far behind the West that it was weak and primitive.
In ancient times field were planted by broadcasting throwing the seed randomly. It was the Chinese who in ancient times realized that if the seeds were planted in separated rows the plants could be irrigated more effectively and the weeds could be chopped down with a hoe.
In BC the Han emperor boasted of having regiments of fifty thousand armed with crossbows. Deep drilling and the use of natural gas: One Han prince spoke in BC of having thousands of crossbows for his army.
In addition to brine this drilling also often tapped into reservoirs of natural gas. This device enabled the bowman to hook the bow-string over the prong and use his legs to push against the bow. A bow was placed horizonally on the ground and secured.
Rudders for navigating ships: With cheap cast weapons available large numbers of the peasant male population could be inducted into a national army. Stirrups were attached to aid in pulling back the string.
Later larger crossbows were built to shoot multiple arrows at a time. Later the gunpowder was used for making fireworks. This enabled the Chinese furnaces to reach temperature hot enough to melt iron into a liquid state.
He created this bureaucracy to centralize control and break the power of feudalists who were always usurping the power of the central authorities.
China used crossbows militarily as late as in its war with Japan. By the fourth century BC military leaders were relying strongly on crossbow-armed forces. When Jesuits presented such mechanical clocks to the Chinese emperor many centuries later the technology had been forgotten in China and no one knew that the mechanical clock had been invented in China.
The Qin Empire did not last long after the death of its founder.Nile River: The Nile River is the major river in Africa that flows North instead of South. Nile River Valley: The Nile River Valley is the area surrounding the river that is susceptible to flooding.
The Advanced Technology of Ancient China Metal Casting: Casting of bronze objects developed very early in the Shang Civilization of the Yellow River Valley of about BCE.
Religious objects, as well as tools and weapons, of great artistic merit were cast. There were also major early developments in mathematics, astronomy, philosophy. The Indus Valley Civilization ensued during the Bronze Age (– BCE; mature period – BCE).
It mostly spread along the Indus and the Punjab region, extending into the Ghaggar-Hakra river valley and the Ganga-Yamuna Doab, surrounding most of what is now Pakistan, the western states.
Lesson Plan: Early River Valley Civilizations Subject: World History Grade: 9 CBC Connection: Chinese Civilizations IIC6: Trace the developments of the dynastic cycles in Chinese Civilizations IIC Identify causes and effects of various changes in historical development Finally a 4th civilization arose in the Yellow River Valley.
Indus River Civilization. The Indus River Valley Civilization was a civilization that started about BC along the South-western part of the Indus River. Its biggest city was Mohenjo-Daro, in present day Pakistan, but had cities and settlements all along the river.
Tigris-Euphrates River Valley Civilization. Mesopotamia an area geographically located between the Tigris and Euphrates rivers.
Mesopotamia means the land between two rivers. Mesopotamia began as urban societies in southern Iraq in BC, and ends in the 6th century BC.Download