The treadwheel crane is a sky-lifting giant arm derived from the lever principle. The earliest conceptual drawing is the product of the "utopian dream" of the ancient Roman architect Vitruvius. Of course, it is also said that this original drawing was created by Archimedes.
invented.
The earliest prototype concept machine, this prototype machine has only one mast, and a pulley is installed on the top of the pole. The position of the mast is fixed by a pull rope, and a winch is used to pull the cable passing through the pulley to lift heavy objects.
Of course, when it comes to the lever principle, it naturally existed in the ancient Central Plains, no later than the West. The pre-Qin classic "Mo Jing" was the first to theoretically describe the working characteristics of the unequal arm balance.
At the time of King Yan Zhao, people also tried to use leverage to weigh giant pigs; among the existing unearthed cultural relics, there are also "Warring States Bronze Scales" that can be used as "unequal arm scales".
Later, based on that prototype design, the treadwheel crane appeared.
This kind of primitive tread wheel crane was best used by the ancient Romans. However, the prototype machine was only heard from an archaeological teammate and seen drawings drawn by him, but he had never seen the actual prototype.
Therefore, when Ruanzai threw this thing out to A Hong, he felt that since Danzhu's carpentry skills had made rapid progress, how could he not be able to design heavy machinery as a great engineer?
"A Hong, believe me, as long as you get this thing out, no one in the Central Plains will dare to look down on you. How do those fellow villagers know what you are capable of? They are only looking at the one-third of an acre of land in front of them!"
Of course, Yuzai didn't know what Danzhu meant. If this thing didn't go well, he would have no choice but to go back to Danyuan and become an idle prince, inherit hundreds of millions of family property and eat and wait until death. This was the decadent state of Danzhu in the later period of history.
....
Not only was Yao scolded him, but after Yao finished scolding him, Shun was also scolded. Although after Yao's death, Shun gave his son to Danzhu, so Shang Jun's child successfully acquired the attributes of a master carpenter.
And he's also good at singing and dancing...
This thing is actually interesting to talk about. When the Fuxi clan was in the clan, the Ge Tian clan was very good at singing and dancing. Even now, they are also a large tribe in the Central Plains. At that time, the Ge Tian clan even produced a common leader in the world. The so-called "Ge Tian clan"
"The Music of the Family" was written by that human emperor.
Ge Tianshi sang and danced to make the world happy together. Shang Jun sang and danced, but Shun felt that this boy had no ability at all...
This is the same situation as Yao who was fooled by Danzhu playing chess, and then became discouraged when he saw Danzhu doing carpentry.
Therefore, it is not that a family does not enter a house, but when it comes to opening, they will be very good at making troubles. They learned the lessons of Danzhu and Shangjun and directly killed Boyi.
But now, Danzhu's mind is filled with pictures of this crane!
His breathing was a little rapid. The materials required for such a huge machine must naturally be deified. This must be a basic requirement, otherwise no matter how strong the giant wood is, it will be susceptible to huge losses, and the huge gear set and treadwheels,
Danzhu is almost certain that this is the aesthetics he has been looking for!
But the crux of the matter is that this thing...
"A Hong, you must be brave enough to challenge! Just because the predecessors have not done it, it does not mean that future generations cannot do it either!"
Yu Zai encouraged Danzhu vigorously, and Danzhu concentrated his breath. Of course he knew what role this thing would play in the future war.
Checkpoints, fortresses, cranes, boulders...
"Of course I want to make this thing!"
Danzhu's eyes were burning with fire!
"Zai, you came up with something amazing... thank your friend for me."
Ruan Zai was stunned for a moment, but Danzhu picked up the design drawing and walked forward. However, he stopped after taking a few steps, turned his head, and said seriously to Ruan Zai:
"The blueprint you gave me and the conversation you have with me today will change the entire world in the future!"
"The era of giant arm gears and tool workers has arrived!"
Yuzai suddenly stood up and slapped his head. Danzhu was a little confused, but at this time Yuzai smiled and said:
"Then Ah Hong, please call me this..."
Yu Zai cleared her throat: "Ahem..."
"This is a small step to change the south, but it is a big step to change the entire mountains and seas!"
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Xunshan sent a purchasing team to Yangdi Mountain. Xunshan was naturally very concerned about the production and testing of bed crossbows. After all, it was related to the future security and the attitude and role of the south in the eyes of the Central Plains. However, Xunshan felt that,
There seem to be too many people sent out recently.
"Ji Yuan, Ji Bu and the others haven't come back yet. The envoys from Ji Li Kingdom have been staying at the Chifang clan for many days. They haven't come back from the southwest yet?"
"You can't really go the wrong way!"
Although Ji Zhi was not willing to believe this answer, it seemed to be the situation at the moment. Those guys took the map and instructions and walked all the way to the southwest, and they were able to turn off the road!
Of course, Ji Zhi at this time did not know what kind of big shot Ji Bu, Ji Yuan and the others had met.
In Lingze, Wushan, Wu Pan learned about the news of Sanmiao's attack. Ji Yuanjibu and others came out to make it, so he told Wu Pan that Sanmiao's attack had only reached Baoshan and there was no further news.
Wu Pan felt a little emotional.
Sanmiao, this is a tribal alliance that dates back a long time.
Wu Pan knew that he might have to leave here, and the war between Sanmiao would inevitably spread here.
Wushan is not a mountain, but a stretch of mountains. Wushan, where Emperor Yan buried his daughter, is a cluster of mountains in the northeast. It is also where the "Dan Mountain" in Wushan is located.
The warriors of the Xunshan clan hoped that the legendary "Ten Witches of Lingshan" could help them resist the enemy.
The power of Sanmiao is huge. It has already taken shape in Huangdi's era, and in Emperor Ku's era, Sanmiao has basically formed. In essence, Sanmiao belongs to the collection of many defeated tribes more than 200 years ago. This collection
The body continued to absorb more defeated and relocated clans, and combined with the local barbarian tribes in the south, eventually forming the third largest force in the ancient mountains and seas, which was the "Miao Man Group".
In the mountains and seas, the tribal alliances can be roughly divided into six. Excluding the Four Wild Kings, the tribal alliance refers to a large area like the Central Plains and Dongyi, where several countries and city-states unite. In this
In a region, the rulers have an interest as a whole, which is an "alliance".
From the tribe to the alliance, it is an advanced relationship, so... it fully explains that there is a reason why the tribe cannot beat the alliance...
So, the tribal alliance of Shanhai is headed by the Central Plains, the Huaxia tribe is a centralized alliance, the Dongyi is a parliamentary alliance, the Baiyue is a scattered type, the three Kunlun tribes are a chiefdom type, and the northernmost Dayou land is a primitive mutual assistance
association......
And the Miaoman group should be regarded as a feudal government?