Prince of Song Dynasty

Chapter 864

Ye Chen told everyone what he knew about the history of human evolution. Of course, he would not say that humans evolved from monkeys, but only after humans mastered fire and used tools, which marked the initiation of spiritual intelligence, and focused on The invention of various representative tools in human history, each invention has brought great impetus to the advancement of human society, from bows and arrows, to fishing nets, to traps, from hunting to farming, from wearing leaves to clothing, from living in caves , to Youchao, then to the wooden house, and then to the walled city.

From the embryonic form of human beings to the establishment of society, and then to the legend of the Three Sovereigns and Five Emperors, the improvement of tools and the invention of new things have always been inseparable from the improvement of human beings.

Everyone in the audience was silent for a long time. They had never heard such an explanation of the historical trajectory of human development. If it wasn’t for His Majesty the Great Emperor, who represented authority and truth, some people would definitely feel absurd at first hearing it, because This is completely beyond their comprehension.

But because His Majesty said it, everyone listened very carefully and thought about it very seriously, so their faces had suddenly realized, but they also had doubts and bewilderment, and most of them were excited.But regardless of their thoughts at this time, everyone feels that the veil of the world in front of them has been lifted once, and a new world has appeared before their eyes.

Sitting in the corner, Bai Canghai, Lian Jicheng, and Xu Xuan also had thoughtful faces, and were deeply shocked in their hearts.

After leaving the lecture hall, Xin Shi also came over at this time, and reported the scene of recruiting students to Ye Chen.Ye Chen said: "Tell this matter to the Political Affairs Hall after you go back today. Han Xizai and Ma Wentao will know what to do."

Xin Shi said yes, Ye Chen, Bai Canghai, and Lian Jicheng, accompanied by Xu Xuan, inspected various places in the college.Sensing the changes in the academy over the past year, Ye Chen couldn't help feeling deeper.

Half an hour later, the Mechanical Research Department of the School of Physics.

Xu Xuan said: "Your Majesty, do you want to rest first?"

Ye Chen shook his head and said, "No need, I heard Concubine Yu said some time ago that the Mechanical Research Department of the School of Physics produced a lot of exquisite things, let me have a look."

"Your Majesty, please come with me."

Xu Xuan led Ye Chen and his party to the machine tool workshop next door.

There is a ball bearing and roller bearing for sawing machines and round bar machines that have not been completed yet. Several teachers led students and carpenters to make a sliding bearing. However, the practicality of this wooden structure bearing is obviously extremely limited.

"My Majesty, the reason why the carpenters are asked to make such bearings is to test the structure of the sawing machine and the round bar machine. In the future, metal rolling bearings will definitely be used." Wang Heshan, the dean of the School of Physics, is Xiang The most famous carpenter in the country of Fu is said to be an authentic Mohist. Xiangfu College can let him stay as a professor, it is purely due to Ye Chen's "Elementary Physics".At that time, after Wang Heshan read this book, he regarded Ye Chen as a heavenly being, but he also knew that it was obviously impossible for him to discuss related knowledge with Ye Chen as Ye Chen.So he stayed at Xiangfu College as a professor.Ye Chen heard about this person from Yu Qingyan, and according to what Yu Qingyan said, Wang Heshan was even better than her in carpentry and puppets.

The arrival of Ye Chen today made Wang Heshan a little excited, and Ye Chen also had some interest in it.

"The sliding bearings mentioned by His Majesty in "Elementary Physics" are really wonderful. I made wooden sliding bearings, and then referred to machines such as spinning wheels, waterwheels, and stone mills, especially the mechanical knowledge mentioned in Your Majesty's book, and made them. It took more than four months to research the other components."

Whether such a design can achieve the desired effect, Wang Heshan is also not sure, but he believes that His Majesty the Emperor will definitely be able to give him some advice, so he seized the opportunity and quickly showed it to Ye Chen. The admiration also made Wang Heshan feel relieved, realizing that the direction of his research and invention should be right.

The emotion or shock in Ye Chen's heart at this time is far higher than the expression on his face. If others don't know, how can he not know the great role of the machine, even though the so-called sawing machine in front of him is only a semi-finished product, and it is the simplest machine made of wood. , but the significance is also huge.

Because it was a brand-new design, Wang Heshan was not sure how to calculate the size of each component, so the production of the lathe was still inseparable from matching, that is, making corrections while assembling.

All the parts of the planned sawing machine have been made and almost assembled, but it has not yet been officially operated.

Hearing just now that His Majesty the Emperor was coming to inspect the mechanical department, Wang Heshan hurriedly asked a few carpenters to quickly install all the parts in place according to the design, and checked them again and again.

Wang Heshan named this sawing machine Mojia No. [-], which adopted the simplest structure of crank rocker, large and small flywheels and belt drive.

To put it simply, the structure of this sawing machine is similar to the bicycle of later generations. The crank rocker is equivalent to a pedal, and when it is shaken, it drives the flywheel that is connected together. It is different from the gear and chain structure of a bicycle. Here is the simplest round wheel and cowhide belt. .

Of course, Mojia No. [-] is only an experimental product at best, and it doesn't have much practical value yet.

"Your Majesty, this circular saw can turn, but I don't know if it can cut wood." Wang Heshan said respectfully, wiping the sweat from his forehead.

Ye Chen had already walked towards the sawing machine in front at the first time, walked around it twice, and said to Wang Heshan, "Is it hand cranked?"

"Your Majesty's eyes are as bright as a torch. This sawing machine is indeed powered by a hand crank." Wang Heshan immediately admired His Majesty even more. His design did use a hand crank as the initial power, but he hadn't had time to install it yet. You can't tell it from the semi-finished product in front of you, but your Majesty can tell it at a glance.This is indeed a man of God who can write "Elementary Physics".

Ye Chen said with some emotion: "Install the hand-operated device, find a thinner board that is easy to saw, and put it on for sawing."

Wang Heshan agreed, and asked someone to bring a hand crank, and installed it himself. There was a lot of wood on the spot, and he quickly found a wooden plank less than a finger thick, put it on the platform of Mojia No. [-], and slowly pushed it to the circle. Before the saw.

The carpenter who had been arranged was robbed of the handle by Ye Chen. He looked a little excited and cranked the circular saw very fast.

Wang Heshan hurriedly got the carpenters out of the way, picked up the thin plank himself, pressed it firmly, and carefully pushed it towards the circular saw.

Ye Chen was calm on the surface, but he was very excited in his heart, because this saw, if successful, may mark that Chinese civilization will take the lead in entering the machine age.

The front end of the wooden board finally touched the circular saw, and both the circular saw and the wooden board seemed to be slightly stagnant. Ye Chen exerted a little force, and the circular saw finally started to spin rapidly again.

Wang Heshan pressed down on the wooden plank with all his strength, staring at the front, only heard a "chicchichi", the sawdust flew in front of his eyes, and the wooden plank in his hand gradually slid forward!
It worked!
When the board split into two in his hands, Wang Heshan couldn't help waving the two boards and jumped up excitedly.

Ye Chen let go of the handle, the joy on his face could not be concealed, and he said, "That's right, Wang Aiqing should be recorded in the annals of history at this very moment!"

Xu Xuan, Bai Canghai, Lian Jicheng, and Xin Shi were taken aback when they heard this, and some didn't understand why His Majesty the Emperor rated this thing as a thing that could save manpower to saw wood.But only Wang Heshan, who was overjoyed, understood the reason why Ye Chen had such a high evaluation. He faintly felt that he had opened a new door to the world.

Sure enough, what Ye Chen said next confirmed this to a certain extent.

"The giant gun and crossbow require ten people to operate, and the trebuchet requires 15 people to operate, but if the principle of sliding gears and chains is applied to them, the manpower can be reduced to two people, not to mention labor-saving. It's easier to adjust the accuracy." Ye Chen thought for a moment, then said.

Everyone's body trembled when they heard the words. Looking at the sawing machine in front of them, they thought that it was so.Wang Heshan's eyes were frighteningly bright, and he said first: "Your Majesty, I implore you to entrust the modification of the giant gun, crossbow and trebuchet to the Physics Department of Xiangfu College."

Ye Chen said: "I agree."

Wang Heshan and Xu Xuan immediately rejoiced and said, "Thank you, Your Majesty."

Ye Chen said: "How much money is needed, you can make a report and submit it to the Ministry of Households for approval."

Regarding the later words such as "funding" and "report", because of Ye Chen's reasons, they have already been circulated in Xiangfu Kingdom. Wang Heshan and Xu Xuan can understand it, and they immediately agreed.

At this time, a secret guard came in and reported that Zhang Mingfu, the envoy of the Department of Education of the Ministry of Rites, wanted to meet His Majesty. Ye Chen frowned, and said, "The modification of giant guns, crossbows, and catapults is related to military and national affairs. You must do a good job of keeping it secret. Turn around and see me." The Ministry of Security will send someone over to take charge of this matter. From now on, the level of secrecy will be raised to top secret, and non-essential people are not allowed to enter these places, and important officials in the court and central government are not allowed to come here without my permission. That Zhang Mingfu made him busy Go about your own business."

The dark guard agreed and went out.

Wang Heshan and Xu Xuan's hearts immediately trembled, and then they remembered the other significance of this matter, and quickly said yes with awe.

Ye Chen stared at the "Mojia No. [-]" sawing machine for a long time, recalling the mechanism of later bicycles in his mind, and suddenly said: "Lower this crank handle and change it into a pedal that can rotate freely and can be pedaled." form, and then set up a place to sit in this place."

Speaking of this, Ye Chen paused for a moment. In his opinion, the sawing machine in front of him is quite simple and has many problems. For example, the resistance encountered by the circular saw should not be too large, otherwise the cowhide belt will slip; the consumption of human power is also obvious. , can not be durable; in addition, because of the bearing problem, the rotation of the circular saw is not stable; and the wooden structure is not strong, and it may collapse and fall apart after a few times of use.

(End of this chapter)