The information in Zhao Hao's hands is now very limited, except for a model of a water mill and a picture in his mind of a Western bull wheel that may be a fake. The car and ship are ready-made, but he feels that there are still many imperfections in the hull structure and needs to be further improved, so it is still a very laborious task to complete the idea of animal power to propel the car and ship, but it can also fill the spiritual emptiness.

In terms of the design of the power source, Zhao Yu felt that it was not the most difficult, from the picture it seems that there are three pairs of cows on the top open-air deck, that is, six cows pulling three pairs of paddle wheels. However, he knew that for warships, the top deck was generally reserved for soldiers to fight, and it was necessary to arrange soldiers and install combat weapons, so when Zu Chongzhi designed the Qianli ship, he should move the winch to the next deck to free up the space on the top deck for combat needs.

At the same time, Zhao Yu thought that turning a pair of paddle wheels with animal power was not only very slow, but also that the rotation of the winch required a circumferential activity space was also very large, and the first deck could not be as dense as accommodating sailors, and if a double-layer winch was used, the upper deck and the lower deck were arranged with livestock, which would need to occupy more unprecedented. This creates a contradiction that requires redesign and optimization.

And the choice of livestock also needs to be carefully considered. The Ming Dynasty's divine book "Heavenly Creations" recorded by Zhao Yu recorded: Fan Li Niu attacked wheat and two stones a day, and the donkey was half. The strong will attack three fights, and the weak will be half of them. It shows that the cow has the greatest strength and the longest sustaining force, and at this ratio, a cow can be used by about seven people. But the weaknesses are also obvious, one is slow, the other is large, eats more second, and occupies a lot of space.

Zhao Yu read the information of the vehicles and ships that the Song army had equipped, in the uprising of Yue Feiping Yang Mi had imitated its warship, the largest car and ship were 36 zhang long, 4 zhang and 1 foot wide, the official ruler of the Song Dynasty was about 31 centimeters in modern times, the length was about 110 meters, the width was about 12 meters, the load should be in 5,000 stones, at least 150 people needed to trample on it to drive, and the oxen only needed 20 heads, but in actual combat, the wooden boat rarely exceeded 100 meters. Generally, large vehicles and ships are between 20 and 30 zhang, and he decided to design them on this basis, which can be used for combat, and can also quickly transfer troops and transport baggage.

In addition, Zhao Yu found that the ancients had misunderstandings in the use of paddle wheels, thinking that the more paddle wheels, the more power they have, and the faster the corresponding speed will be. So there are not only 10 or 15 cars, but as many as 30 or 40 cars. He believes that from the perspective of product manufacturing, large ships need large paddle wheels to promote, in addition to the pursuit of efficiency, but also conducive to reducing the parts of vehicles and ships, and facilitating maintenance. And if it is 40 cars and 80 small paddle wheels, the size of the paddle wheels is small and the number is large, but it is easy to be damaged.

In addition, if it is 40 cars, and each side has 40 paddle wheels, then the ship must be very long, and from the records, only a large ship of more than 30 zhang can be competent. In addition to the bow and stern due to the arc and anchor chain, winch, rudder and so on and inconvenient to set up the paddle wheel, the hull length of the paddle wheel is estimated to be around 25 zhang, and the space allocated to each paddle wheel is more than six feet, and then subtract the wheel spacing, it is estimated that the diameter of each paddle wheel is five feet before and after, and the five-foot diameter paddle wheel is too small for a vehicle ship more than 100 meters long.

In addition, because the paddle wheel is an efficient and continuous movement of the paddle blades, therefore, the over-dense wheel spacing will reduce the efficiency of each wheel, that is, many paddle wheels are indiscriminately filled in it, because the front paddle wheel rotates fast, the water flow is rapid, and the rear paddle wheel does not have much need to do work, and the water flow is sometimes faster than the speed of the paddle wheel behind, so the over-dense wheel spacing not only can not accelerate the ship, but affects the speed of the ship, and the effect of the paddle wheel cancels each other. And unless the parota behind it always spins faster than the papaila in front of it, it will not be canceled.

It can be seen that the design point of the ancients with 40 cars and 80 wing wheels is inappropriate. There are also rudders of vehicles and ships that are mostly designed above the virtual ship, and the tail rudder is placed under it, which is located at the end of the virtual ship. Such a suspension method increases the load of the rudder, and a four-zhang long oar weighs more than 700 catties, not to mention the rudder? If you add in the weight of the large cart suspended in the stern, the rudder above the virtual ship is easy to break due to the tearing moment generated by the huge drag of the rudder during the high-speed navigation of the water battle.

For the rudder at this time is not only subject to the resistance of the water to the backward flow of the hull as it advances, which is the resistance to which all rudders are subject; It is also affected by the high-speed backward water flow generated by the rotation of the stern car, and the water flow hits the rudder rod and rudder surface at high speed, which is the unique resistance of the rudder of the stern car, and these two forces act on the rudder placed at the end of the virtual car, which is likely to tear the wooden components of the rudder, that is, after the stern car, the installation of the rudder will cause self-damage to the vehicle and ship......

Zhao Yu listed the difficulties that will be encountered in the improvement one by one, and then solved them one by one from difficult to easy. However, this process is not easy, often because of a small data error has to be overturned and redesigned, of course, the most difficult is also the power source, for which he also sent someone to find a few cows, made a simple winch for actual measurement.

In this way, the soldiers in the garden also found fun, they were idle and uncomfortable on the island every day in addition to training, duty, and cleaning, and the little emperor not only wanted them to measure the shoulder height, weight and elongation of each cow, but also asked them to pull the winch and drag different heavy objects around in circles, which had to record the endurance of the cattle at different speeds, etc., and of course they had to serve them well to eat and drink, and each piece of data had to be accurate and recorded.

However, Zhao Yu was not idle, he was thinking about how to give full play to the maximum effect of each paddle wheel at the same speed. First of all, he selected the size of the paddle wheel, and wanted to make the rear paddle wheel work equivalent by adjusting the angle or number of blades on each paddle wheel. But he found it too cumbersome, so he thought that each set of paddle wheels could be connected in series through a transmission mechanism, so that only two sets of winches could drive all the paddle wheels, and it could also reduce the space occupied by livestock. In addition, with a variable diameter worm, the paddle wheel can obtain the result of different rotational speeds at the same velocity.

Transmission problems were solved, and new problems also appeared. The use of tail rudder to control the direction is easy to cause damage to the hull, and no rudder and can not control the direction, which has become a difficult problem to choose one of the two, but one is indispensable, Zhao Yu suddenly thought of modern tanks one day. We know that the steering of the tank does not change the direction of travel by the front wheel guidance like the car, but by the track difference, that is, the track on one side turns fast, and the track on the other side turns slowly, and the track difference makes the tank steer.

The formation of the track difference is formed by cutting off part of the power of one side of the track and increasing the speed of the other side of the track, which is called separation steering, which is used for fast and small angle steering, and the steering mode taken when traveling. Or completely cut off the power, brake one side of the track, the other side of the track turns, the formation of one side of the track does not turn, the other side turns, this is called in-situ steering, for slow and large-angle steering, this is the steering mode taken when starting or stopping.

Zhao Yu thinks that this idea is feasible, as long as a switching mechanism can be used to achieve steering due to the different speeds of the two paddlewheels of the vehicle and ship, that is, the speed difference steering. As for the large-angle slow steering, he kept the single paddle wheel at the stern to keep the boat moving forward, and then cut off the power on one side to achieve the high-angle steering.

One problem was solved, but another problem appeared, the vehicle and ship can use the front and rear treadmills of people to achieve both advance and retreat. But the cow is not as good as a person, and it is enough to replace the lower legs, but the cow needs to be re-set to achieve it, which will inevitably delay a lot of time. However, it is not so easy for Zhao Yu to study the progress and retreat with manpower, and the vehicles and ships often travel at both ends, so it seems that the bow and stern must have rudders.

In addition, if the rudder is installed at both ends, it will inevitably affect the shape of the hull waterline structure at the bow of the ship, affect the speed of the ship, and at the same time, it will also occupy a narrow cabin space with the anchor chain winch, increase the complexity of the sailor's operation on the ship, and reduce the overall combat effectiveness of the vehicle and ship. The rapid advance and retreat are of practical significance in actual combat, and Zhao Yu believes that it is still necessary to try to retain them.

The accumulation of problems requires different solutions, and Zhao Yu thinks that this is too complicated, which not only increases the difficulty of operation and maintenance, but also needs to increase the number of operators. The way to simplify the complex is to bring all the functions in one place, so the world's first transmission appeared, which can realize the forward, backward, and turn of the boat, and also has three forward shifting gears, so as to complete all the operations in the operation of the boat.

After obtaining the experimental data and completing the concept, Zhao spent five days of hard work to draw the drawings, and then used five days of hard work to make a 1:100 model, and used the clockwork as the power to conduct a sea trial, verifying the feasibility of using animal power as the power source. After that, the model of the transmission mechanism and linkage mechanism began. At this time, he thought that this was the most difficult part, the whole mechanism had to be made of metal, and the current metal material performance was not stable, but he had to try to ensure the normal operation of the entire linkage mechanism in the design.

After I don't know how many times of adjustment and program optimization, Zhao Yu completed the manufacture of the model, in order to ensure the durability of the whole mechanism and the accuracy and smoothness of the operation, he felt that there was little room for further improvement under the current technical conditions, so the drawings were finally determined. In addition, in order to ensure the strength of the ship, he also used a large number of metal parts, especially the keel, which used a large number of forged parts.

Zhao Yu knew very well that the trial production of a large warship was not as good as the trial production of guns, and the cost of tens of thousands of yuan would be required at every turn, and once it failed, a large amount of manpower and financial resources would be wasted. Therefore, I didn't dare to be sloppy in the slightest, and invited several masters of the shipyard to explain to them one by one, so that they could understand and understand, so that they could carry out trial production, and told them that if there was a problem, they must tell themselves, and they must not change it without authorization.

It took Zhao Yu a month to complete the drawings and model design of the animal-powered vehicles and ships, but he did not understand why the vehicles and ships that were widely used in the Song Dynasty did not appear such as the 'thousand-mile boat', which itself did not conform to the laws of historical development. He estimated that perhaps it was because of the long-term shortage of horses in the Song Dynasty, which limited the development of animal-powered vehicles and ships, and the development of horse-drawn carriages in China during the same period may also lag behind the West, but the palanquin, a means of transportation that completely relied on manpower, prospered. It can be said that the once-prosperous vehicles and ships have not been developed, but have led to the stagnation of technological innovation and a certain degree of regression......

Zhao Hao worked in full swing for a month and improved the car and boat. However, the court was cold, Yao Liangchen and Wei Tianzhong were dismissed from office on the charge of colluding with Meng Yuan after being tried by the three divisions, and all their fame was stripped of their reputation. Yao Liangchen was assigned to Huguang Xingye to be managed, Wei Tianzhong was assigned to Gaozhou, and the families of both sides were expelled from Lin'an and sent to their hometowns for care, and the three generations of their children and grandchildren were not allowed to participate in the imperial examination.

At the same time, the Empress Dowager decreed that Cai Wanyi was appointed as the prefect of Lin'an, Chen Zeweng was appointed as the secretary of the household department, Qi Yaqing, a university scholar, was appointed as the secretary of the Ministry of Industry, and Deng Wenyuan took over as the secretary of the criminal department, and promoted the city with Pan Fang. From the appointment, of course, Zhao Yu can see that these people who have entered the ranks of the rulers are all his own team, and it can be seen that the queen mother is deliberately eliminating those with dissidents for herself and arranging his henchmen into important departments in the court.

According to another secret report from the palace, the queen mother had murderous intentions towards Chen Yizhong, and she thought that when the little emperor was still the king, Chen Yizhong repeatedly harmed him. At the moment, he had just recovered Jiangnan, and he framed the little emperor to depose him, and even sent an assassin on the main hall at this moment. Therefore, if Chen Yizhong is alive, there will be endless troubles, and it is inevitable that he will rebel again, so it is better to put him to death and never suffer in the future.

Zhao Yu was moved, but also knew that it was almost impossible to eradicate the rebels. Because as early as ten years ago, Lin'an fell, and the emperor had already decided that the Great Song Dynasty had been destroyed when he hunted in the north, so he said that he was recovering the country, but in fact, it was no different from re-establishing the country. People feel that a little child only occupies such a corner of Qiongzhou, and can re-establish the country as the emperor, so it seems that it is not difficult to be the emperor, as long as you are strong enough, you can achieve it. There is also the success and defeat of the king, as long as you succeed, you are the son of heaven, and no one will say that your throne is wrong.

At present, although it is said that most of the south of the Yangtze River has been recovered, people want to compete for the world, and the emperor's heart has not been calmed, and he still wants to rebel. As long as there is a rebellion, the goal can be achieved. When we look at the period of the Northern and Southern Dynasties, why there are so many changes of dynasties, is that everyone wants to rebel, and the probability of success is relatively high. For example, as soon as Chen Sheng and Wu Guang of the Qin Dynasty rebelled, the world flocked, and everyone wanted to have the same authority as Qin Shi Huang. And because there was an idiot in the Western Jin Dynasty who was the emperor, everyone wanted to rebel.

It is conceivable that everyone thinks, no matter how much I say that being an emperor is better than being an idiot, a bastard, and a faint king. And at the moment, there will also be people who think that being an emperor is better than a child, so Zhao Yu feels that he is more dangerous at the moment than when he was in Qiongzhou......