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Chapter 208 One small step to change the world

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    The tread wheel crane is a giant arm derived from the principle of leverage. The earliest concept drawing was the product of the "fantasy" 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 with a pulley on the top of the mast. The position of the mast is fixed by a drag cable, and the cable passing through the pulley is pulled by a winch to lift heavy objects.

    Of course, when it comes to the principle of leverage, the ancient Central Plains naturally had it, not later than the West. The pre-Qin classic "Mo Jing" was the first to theoretically describe the working characteristics of unequal arms.

    When it came to King Yanzhao, people also tried to use leverage to weigh the weight of the giant hog; among the existing unearthed cultural relics, there are also "Warring States Bronze Balances" that can be used as "scales with unequal arms".

    Later, on the basis of that prototype design drawing, the tread wheel crane appeared.

    This kind of primitive tread wheel crane was best used by the ancient Romans, but the prototype machine, I only heard from the archaeologist teammate and saw him draw pictures, but I have never seen the real thing.

    Therefore, at this time, Yan Zai threw this thing out to Ah Hong, thinking that since Danzhu's carpentry skills have made leaps and bounds, as a great engineer, how can he not be able to design heavy machinery?

    "Ah Hong, believe me, as long as you get this thing out, no one in the Central Plains will dare to look down on you. Those fellow villagers don't know what you are capable of. They are all only staring at the three-acre land in front of them!"

    Of course Yuzai didn¡¯t know what Danzhu was referring to. If this matter was not done well, he could only go back to Danyuan to be an idle prince, inherit hundreds of millions of family property and wait to die, which is the decadent state of Danzhu in the later period of history.  

    Not only was sprayed by Yao, after Yao finished spraying, he even let Shun follow suit. Although after Yao died, Shun gave his son to Danzhu, so the children of Shangjun successfully acquired the attributes of master carpenters.  And he can sing and dance

    This matter is actually interesting to talk about. When the Fuxi clan was born, the Ge Tian clan was very good at singing and dancing. Until now, they are also a large tribe in the Central Plains.  "The Joy of the Family" was written by the emperor.

    Singing and dancing with Ge Tianshi is to let the world enjoy together, Shang Jun sings and dances, Shun feels that this kid has no skills at all

    This is the same situation as Yao being fooled by Danzhu playing chess, and then disheartened when he saw Danzhu doing carpentry.

    Therefore, it's not that the family doesn't enter the house, and when it comes to Qi, they will be very good at it. They have learned the lessons of Danzhu and Shangjun, and directly killed Boyi.

    And now, Danzhu's mind is full of pictures of this crane!

    He was short of breath. Naturally, the materials needed for such a huge machine must be deified. This must be the basic requirement, otherwise even the strongest giant wood will be subject to huge wear and tear, and the huge gear set and tread wheels,  Danzhu is almost certain that this is the aesthetics he has been looking for!

    But the crux of the problem is that this thing

    "Ah Hong, you have to be brave to challenge! If the predecessors did not do it, it does not mean that the future generations will not be able to do it!"

    Yan Zai encouraged Danzhu vigorously, but Danzhu held his breath. Of course he knew what role this thing would play in future wars.

    ? Levels, fortresses, cranes, boulders

    "Of course I want to make this thing!"

    In Danzhu's eyes, a raging fire was burning!

    "Zai, you have come up with something amazingthank you, that friend for me."

    Yan Zai was stunned for a moment, but Danzhu picked up the blueprint and walked forward, but stopped after walking a few steps, turned his head, and said seriously to Yan Zai:

    "The blueprint you gave me, your conversation with me today, will change the whole world in the future!"

    "Giant arm gears, the era of mechanical engineering, has arrived!"

    Yan Zai suddenly stood up, but slapped his head, Danzhu was a little puzzled, but at this moment, Yan Zai smiled and said:

    "Then Ah Hong, please say this again, so that I can write better on the bamboo slips in the future"

    Yan Zai cleared her throat: "Ahem"

    "This is a small step to change the south, but it is a big step to change the entire mountain and sea!"

    ¡ª¡ª¡ª¡ª

    Xunshan sent a procurement force to Mount Yangdi. Xunshan is naturally very concerned about the production and testing of the bed crossbow. After all, it is related to the future security and the attitude and role of the South in the eyes of the Central Plains. But Xunshan feels that,  It seems that there are too many people sent out recently.

    "Ji Yuan, Ji Bu and the others haven't come back yet, the envoy of Ji Li Kingdom?It¡¯s been a few days since they¡¯ve lived in the Akakata clan, and they haven¡¯t come back from the southwest yet?  "

    "It can't be that I really went the wrong way!"

    Although Ji Chi is not willing to believe this answer, but it seems that this is the situation at the moment. Those guys are walking all the way to the southwest with a map and instructions, but they can even turn off the road!

    Of course, Ji Chi at this time didn't know what kind of big shot Ji Bu, Ji Yuan and the others had encountered.

    In Lingze of Wushan, Wu Pan learned the news of Sanmiao's attack, Ji Yuan Jibu and the others came out, so he told Wu Pan that Sanmiao's attack had only reached Baoshan Mountain, and there was no further news.

    Wu Pan felt a little emotional.

    San Miao, this is a long-standing tribal alliance.

    Wu Pan knew that he might have to leave here, and the flames of war among the three seedlings would inevitably spread to this place.

    Wushan is not a mountain, but a stretch of mountains. Wushan, where Emperor Yan buried his daughter, is a mountain group in the northeast, and it is also the place where the "Danshan" in Wushan is located.

    The soldiers of the Xunshan Clan hope that the legendary "Ten Witches of Lingshan" can help them defend against the enemy.

    The power of the Sanmiao was enormous, and it had already taken shape in the time of the Yellow Emperor, but in the time of Emperor Ku, the Sanmiao had basically taken shape. In essence, the Sanmiao belonged to the collection of many defeated tribes more than two hundred years ago.  The group continued to absorb more defeated and migrated clans, and combined with the local barbarian tribes in the south, and finally formed the third largest force in Gushanhai, the "Miao Man Group".

    In the mountains and seas, the roughly tribal alliances can be divided into six, excluding the Four Desolate Kings, the tribal alliances refer to the Central Plains and Dongyi, a large area where several countries and city-states are united.  In a region, the rulers are a whole of interests, which is an "alliance".

    From the tribe to the alliance, it is an advanced relationship, soIt fully shows that there is a reason why the tribe can't beat the alliance

    Then, the tribal alliance in the mountains and seas is headed by the Central Plains, the Huaxia tribe is a centralized alliance, the Dongyi is a parliamentary alliance, Baiyue is a loose sand alliance, the Kunlun three tribes are a chieftain type, and the northernmost land of great seclusion is a poverty-stricken alliance.  Mutual aid associations

    And the Miao Man Group, should it be regarded as a meritocracy?

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