The rise of the prince

Chapter 187 Qiu'er's Pulley Block
On that day, the construction of the hydraulic drive system has reached the most critical step of launching the water wheel. There are no cranes in this era, and the pulley is used for lifting the ferry, but it is only one. Simply changing the direction of the force will also increase the friction.

Therefore, to put down the heavy water wheel, we can only build scaffolding (scaffolding is a shelf built on the outer layer of the building for people to stand and work on, which has been used since ancient times), and then increase the height, and then drag the dismantled water wheel with ropes. The parts are put down one by one and then reassembled by scaffolding.

This means that the water wheel must be disassembled, and then painted glue, waiting for the next glue to dry before the next project, and it will take many days.

The stone and wood that are put down by manpower to build the scaffolding are also very heavy. Building the scaffolding by the riverside makes the scaffolding itself a project of the same scale as the water wheel.

The many old craftsmen invited by the palace thought it over and over again, and they also felt that this was the only way to go. The whole water wheel was too big and heavy, weighing about two thousand catties.

Qiuer was originally only responsible for the supervision and the part of the project that needed to be calculated, but after studying high school physics in the past few days, she happened to encounter this problem. She had an idea to investigate the field, and then designed a pulley block. She thought that the pulley block could solve this problem.

The pulley block gives people the feeling of saving effort and effort, but this expression is actually wrong.The use of a pulley block plus the frictional resistance between the various runners, especially in this era when only animal oil can be used as a lubricant, will actually increase the work done a lot.

But why do you still feel effortless?

The reason for this feeling is that the formula for force to do work is W=fs. Work is equal to the product of the force and the moving distance of the object in the direction of the force under the action of the force. People with mathematical skills can understand that if the total work is not As the distance becomes longer, the force that needs to be applied becomes smaller, which is why the pulley block feels effortless.

Before knowing this formula, people blindly changed force in exchange for work and distance, but after a thorough understanding of this law, the human world has changed.

Because people began to understand that the distance can be exchanged for a smaller force, so as to achieve the work that was unimaginable.For example, it is easy to lift heavy objects that were previously unthinkable.

The pulley block is to change the direction of the force, by sacrificing distance for a smaller force.

It was only a day after he explained this formula, but he never expected that Qiu'er would come to him the next day and ask him if he could use the method of increasing the distance to reduce the force needed to lift a heavy object easily, and then told him About the water wheel.

Li Ye was stunned on the spot. Sure enough, the genius's thinking depth and divergence were far beyond ordinary people, so at his suggestion, the little girl designed the pulley block.

The runners are made of iron, cast by blacksmiths in the palace according to the drawings, wrapped with dry cowhide with subcutaneous fat on the inside and outside, and smeared with pork to achieve lubrication, forming a pulley block with two upper and lower wheels. Due to the lubrication technology, the number of pulleys cannot be too many .

The load-bearing frame at the upper end is not complicated. It only needs to be heavier at the rear end, and it can be supported by constantly pressing down with heavy stones. However, the production of the pulley block is more expensive and labor-intensive.

Although the airs were reduced a lot, the craftsmen complained a lot, and they all thought that Qiu'er was relying on the prince's favor to mess around. After all, they have been doing this for so long, and they have traveled more bridges than the little girl, and they have a lot of experience.

Although a little girl is good at planning, can she be better than them when it comes to construction?
This runner is not a novelty. It is also useful when loading goods on the dock, but they all use one, so there is no way to use a bunch of them. If this continues, it will only waste time and energy.

So several craftsmen came to him privately to talk about this matter, but Li Ye just told them that if the matter failed, he would punish Qiu'er.

The implication was that he agreed with Qiu'er's actions, but he didn't say too much. If he said bluntly that I was protecting her, it would only put the little girl in an embarrassing situation. In the future, he was afraid that he would really get a bad name of being spoiled and arrogant.

However, he also went to the construction site to inspect a few times in person. Some people were dissatisfied and might play tricks, procrastination and sabotage. He hinted to go and see every day, saying that he would come from time to time, and at the same time attach importance to this matter. Everyone was dissatisfied. Dare to act rashly.

The plan for the pulley block is carried out in an orderly manner, which is imperative, because the scaffolding is one-off and will be dismantled after the project is completed, but the pulley block is not, and it can still be used if there are other projects in the palace next time.

The price/performance ratio of the two is not at the same level.

In the Great Hall of Changchun, Zhong Daoyu's eyes were blank, his mind was wandering, and several people on the other side were arguing together.

The Emperor has already selected the hand-picked inspection ambassador to go to Ansu Mansion this time, and that is Mo Minyun from Zhongshushe.

The civil servants all shunned this matter and wished they could stay away with respect, because although they were imperial envoys, they would have no merit if they did not lead the army, and second, they might be involved in war disasters if they were not careful.It's a pity that because of his sister's marriage to the prince, he repeatedly said that he would execute Wei Chaoren on the issue of Wei Chaoren. Although he was deceived, he was always wrong.

Your Majesty doesn't want to pursue the matter, but now that Wei Chaoren's official has returned to his original post, he is a big official in the imperial court, and he always has to give him an explanation to appease people's hearts. Yu Cheng'an, a government official, and Mo Minyun, a member of Zhongshushe.

Naturally, it is impossible for the crown prince to punish him, Yu Chengan is the deputy prime minister, so the unlucky one is naturally Mo Minyun, this trip is dangerous, if Ansu's mansion intends to rebel, he, the hand-picked inspector, may be in danger.

When the emperor spoke, Mo Minyun was so frightened that he couldn't stand up, knelt down to thank him, and knelt until the end of the morning court and couldn't stand up.

But military generals are different, because no matter who leads the army, he will lead the army alone. This is a once-in-a-lifetime opportunity.

Apart from a few Jiedu envoys, the only ones who can lead an army alone are the former Prince Xiao and the former Prince Kang. Such opportunities are rare in a lifetime.In addition, this time, they will face at most the Xiangjun of the Ansu Mansion, the imperial army and the Xiangjun. Isn't this a clear gift?

So Yang Hongzhao, the commander in front of the palace, Zhao Guanghua, the commander of the Ma Jun of the guards, Tong Guan, the commander of the infantry of the guards, and Wen Daoli, the deputy envoy of the Privy Council, all pleaded for orders and quarreled for several days.

Zhong Daoyu didn't care, he didn't need these things long ago, so he was drowsy after hearing it.

At this moment, the emperor above waved his hand and said, "Soldiers are valuable at speed, and if you continue to quarrel, you will delay the opportunity of the battle."

Speaking of the emperor sitting, he pointed to the people below and said: "Zhao Guanghua, Tong Guan and Wen Daoli, the three of you are younger than Yang Hongzhao, and I am looking forward to Wenzhiwugong. In the future, you will have the opportunity to serve the imperial court. Let Yang Hongzhao go this time."

When the emperor opened his mouth, the few people didn't dare to quarrel anymore, so they could only bow their hands and obey.

Yang Hongzhao hurriedly knelt down happily to thank him.

The front army has been set, and no one dares to snatch the vanguard of the rear army. This battle is guaranteed, and the rear army is safer than the previous army, so it is purely a mixed effort. The emperor is old, and it is time for the prince to convince the public with military merit , No one dares to be unaware.

Sure enough, the emperor said: "Let the Zhongshu draw up an order, and add Yang Hongzhao, the commander in front of the palace, as the general of Huaihua, lead the army, lead the Shenwu army as the front army, go south to seek thieves, rectify immediately, and leave Beijing before the [-]th of the first month."

After Yang Hongzhao knelt down and listened to the thanks, the imperial decree would be drafted by Zhongshu, painted by His Majesty, and then reviewed by the door, and finally issued to him by the Minister of the Ministry of Finance. It will take a day or two, but the matter has been decided.

The emperor went on to say: "The Prince of Kadong Palace, Li Chengping, is the general of Guide. He leads the army and leads the second chamber of the Shenwu Army as the rear army. He will be rectified immediately and leave Beijing before the 25th of the first lunar month."

The prince also knelt down happily to thank him.

"Today's court meeting is here, let's retreat." The emperor said and waved his hand, and the matter of sending troops was thus decided.

(End of this chapter)