History and secrets of the construction of the Great Wall of China
The Great Wall of China is known as one of the greatest heritages of world civilization. This fortress built wall is the largest building ever made in human history.
This is evidenced by the size of this building that has a length of 6,350 km across from the Shanhaigun Pass near the Bay of Bo Hai in the northeast until Jisayuguan Pass in the North Central region of China.
It reaches 8 meters in height, then the upper width is 5 meters and the bottom width is 8 meters. Each 180-270 meter is a reconnaissance tower that is about 12 meters tall.
The Great Wall of China standing firmly is a symbol of the perseverance and hard determination of the Chinese people of the past. Great Wall of China in the cross-history record.
A brief history of China's Great Wall development
The first to build the Great Wall was to defend the territory of Chung Kuo (ancient Chinese) from the northern Nomad invasion.
During the Qin dynasty, at the time the ruling was Emperor Shih Huang Ti, a great emperor who successfully unified all of China, intending to continue the construction of a large wall that was abandoned for some time due to war conditions Between kingdoms.
In 221 BC, Shih Huang Ti had orders to connect the unfinished wall building and continued its construction route by 5,000 km. Story of the founding emperor of China's Great Wall that sacrificed 6000 virgins.
The construction of the Great Wall is very appropriate considering its function is crucial to withstand the threat of the nomadic tribe who want to seize the territory.
The Great Wall is built on the high, dangerous peaks of the mountains, where the gigantic walls made using the arrangement of stones, brick, ground wood and cement make it resilient and weatherproof for centuries.
The end of the Shih Huang Ti era was succeeded by the Han dynasty in 206-220 A.D. during the Han Dynasty era, resulting in a large wall building extension of 10,000 km.
Not only did he stop there, the Great Wall underwent reconstruction during the Ming dynasty in 1368-1644. At this time the large walls were fortified by adding granite boulders and long coal and coated with lime.
Over the centuries the Great Wall became a very precious fortress in addition to its function as a barrier from the outside world and protect the well-known fertile agricultural products.
The secret behind the Kokohnya Great Wall of China
It is often a common question about what the real secret is behind the Great Wall of China for centuries.
A study concluded that one of the most brilliant technical innovations found at that time was the use of glutinous rice as a cement mixture used to construct the Great Wall.
Glutinous rice that is used as a material mixture of cement has a composition of substances that allow the material lime cement that is utilized to be repeatedly folded more.
The mixture of glutinous rice and cement is composed of organic and inorganic adhesive material, it is able to bind the bricks very tightly even though the wild grass can not grow on it.
The composition of organic conceived amilopectin derived from sticky rice and inorganic composition of calcium carbonate from lime creates a solid microstructure that makes the Great Wall become more stable and has more mechanical strength Great.
What is the uniqueness of this legendary building? There are things that may not be noticed closely regarding the area around the establishment of the Great Wall namely the life of vegetation/plants that grow between the Great Wall.
The presence of giant walls that divide the outer and sides of the forest beyond the presumed to change the genetic of plants that were previously grown with the same genetics slowly over a long period of time turned into plants that Different genetic.
The longest grave in the world
The Great Wall with its legendary splendor throughout the world does not mean leaving no history full of sacrifice. The Great Wall was built using human power taken from slaves employed by force.
The slaves carried out the work of moving the rocks and putting them together into a gigantic wall building with no wages. This heavy work has sacrificed thousands of lives. Thus, it came to mention the Great Wall of China as the longest grave in the world.
