When the water tank began to emit a large amount of white water vapor outward, the burly instructor standing by the stove pulled down a lever on the instrument, so the linkage rod and gear on the instrument slowly rotated, making a clangling roar.

After witnessing the scene in front of them, the eyes of the prisoners showed surprise, confusion, and excitement, and no one could have imagined that this bulky machine would operate on its own without anyone to control it.

"Who can sue Sù Bengong, what do you think of now?" As the rotation of the linkage rod and gear accelerated, the speed of a black wheel connected to the end continued to increase, Li Yuntian walked over and glanced at the black wheel, and then asked the surrounding prisoners with a smile.

"Grandpa Guo, if it is installed on the carriage, it can make the carriage move forward without horse-pulling." There was a silence at first, and then the previous prisoner with a national character face spoke again and said loudly.

"Actually, there are many other uses besides horse-drawn carriages." Li Yuntian smiled slightly when he heard this, I am afraid that many prisoners have already seen this purpose, he wants to show everyone the unknown side, and then bowed slightly to the burly instructor next to the stove.

Seeing this, the burly instructor reached out and pushed the lever up, and then the lever and gear gradually slowed down, and finally calmed down, and it was obvious that the lever was the control rod of the whole instrument.

Under the suspicious gaze of the inmates, several instructors of the martial arts hall took off the black round wheel and replaced it with a fan wheel with three fan blades, and then the burly instructor pulled down the control lever again, and with the operation of the linkage rod and gear, the fan wheel slowly moved, and the inmates in front of them felt a cool breeze hitting their faces.

"Sue Sù Bengong, what did you think of at this time?" Looking at the prisoners who looked surprised, Li Yuntian asked quietly and loudly.

"Grandpa Guo, you don't have to fan yourself when it's hot." A voice soon sounded in the crowd, and everyone at the scene couldn't help but let out a low laugh, this simple truth everyone knew that it was completely unnecessary to say it in everyone's opinion.

"What else comes to mind?" Li Yuntian smiled when he heard this, and continued to ask quietly.

The scene was silent, Li Yuntian's question was too advanced for these young prisoners, so it was difficult for everyone to connect the fan wheel in front of them with other things.

"Grandpa Guo, if you can use it on the loom, it will save a lot of manpower." After a long time, just when Li Yuntian thought that no one could answer, a somewhat faint voice came from the crowd, as if he was not very confident.

This made Li Yuntian's eyes light up, and he looked up and looked in the direction where the voice came from, only to see a fat prisoner standing behind the crowd wearing the uniform of Nanjing Guozijian looked a little cramped, and after seeing him look over, he hurriedly lowered his head weakly.

The prisoners at the scene also looked at the fat prisoner, whispered death one after another, and secretly inquired about the origin of the fat prisoner.

Soon, the faces of those Nanjing Guozi prisoners showed disdain on their faces, as if they were quite disdainful of the fat prisoners.

"Not only looms, but also many other uses if you use them well." Li Yuntian was keenly aware that the fat prisoner didn't seem to be popular with the Nanjing Guozi prisoner, and felt a little curious in his heart, and then pointed to the fan wheel and smiled and said to everyone, "If it is properly used, it can propel the ship forward in the water, and then the sailors on board will have enough time to deal with other affairs." ”

"Pushing the sea vessels? How is this possible! How can a ship move forward without oars? ”

"I see, since it can generate thrust in the air, it can also produce thrust in the water!"

"It's really wonderful, and if it can be popularized, it will save a lot of manpower and be more convenient."

"This is too bizarre, it must have used a trick to deceive us."

"Could it be that there are people hiding in there to shake those wheels?"

……

After Li Yuntian's words were spoken, there was a commotion in the courtyard, and the prisoners gathered in groups to discuss the transmission device, and the difference was that the prisoners of the Jingshi Guozijian were extremely excited, while the prisoners of the Nanjing Guozijian were suspicious of this, and it was obvious that this was beyond their cognition.

"Come on, dismantle it!" Li Yuntian had expected this a long time ago, and then gave an order to the burly instructor in a deep voice.

The burly instructor bowed slightly to Li Yuntian, and after greeting several instructors on the side, he began to disassemble the teleportation device in an orderly manner with the tools in his hand.

Seeing this, the scene gradually quieted down, and the inmates looked intently at the dismantling of the equipment, including the inmates of the Jingshi Guozijian, all wondering what was in this transmission device.

However, when the transmission was skillfully dismantled by the instructors, the inmates were disappointed to find that it was composed of some seemingly ordinary linkage rods, gears, and firmware.

"A lone branch is not spring, a hundred flowers bloom in spring." Li Yuntian glanced at the dismantled parts, smiled and said to the inmates who looked surprised at the scene, "The contence of the sons of the pre-Qin period has a far-reaching impact on future generations. ”

"Obey the teachings of the national government!" Hearing this, the prisoners of the Jingshi Guozijian at the scene bowed to Li Yuntian one after another, and said in unison.

The inmates of Nanjing Guozijian looked at each other, and the education they received since childhood was that they "did not listen to the affairs outside the window, and only read the books of the sages and sages", and they had long been accustomed to reading the works left by their ancestors step by step, and then entered the official career through the imperial examination, and few people thought about studying knowledge other than those works, after all, the imperial examination of the imperial court was not used, and naturally there was no motivation for research and study.

Li Yuntian knew that it was difficult for the prisoners of Nanjing Guozijian to recover from the shock just now for a while, so he smiled slightly and got up to leave, and the prisoners in the courtyard bowed down to see each other when they saw this.

In order to solve the troubles encountered in this "North-South Yong Debate", Li Yuntian told Li Qingzheng that the prisoners of the Jingshi Guozijian and the Nanjing Guozijian were not allowed to use other theories when competing in science, after all, the Nanjing Guozijian did not open those new-style disciplines, and if it involved the knowledge of new-style disciplines, it would be unfair to the prisoners of the Nanjing Guozijian.

Li Qingzheng felt that Li Yuntian was reasonable, so he added restrictions to the science competition, and then made the prisoners of Nanjing Guozijian win in this item.

As a result, Jingshi Guozijian and Nanjing Guozijian had their own victories and defeats, and both sides could accept this result, which led to the end of the first "North-South Yong Polemic".

Although on the surface, it seems that the competition between Jingshi Guozijian and Nanjing Guozijian is evenly matched, but the comprehensive ability of Jingshi Guozijian is far superior to that of Nanjing Guozijian.

Because Nanjing Guozijian was defeated in law, calligraphy and arithmetic, and had no power to fight back in front of Jingshi Guozijian, this made Nanjing Guozijian decide to introduce the corresponding new disciplines of Jiangwutang after learning from the pain, after all, the knowledge taught by Jiangwutang is far beyond their current level, and if they do not take contingency measures, they will be left far behind by Jingshi Guozijian.

After the trip to Beijing, the inmates of Nanjing Guozijian were gradually divided into two camps, one camp continued to adhere to the creed of Confucius and Mencius, and disdained the new discipline of the lecture hall, while the prison students of the other camp were touched by Li Yuntian's heartfelt words in the lecture hall and showed a strong interest in the new discipline of the lecture hall.

This was exactly what Li Yuntian wanted to see, and he knew that it would take a process to get the inmates of Nanjing Guozijian to accept the new discipline of the lecture hall, and it would not be possible to achieve it overnight.

So far, more and more Nanjing Guozijian students have applied for the six colleges of Jiangwutang, which has had a profound impact on the students in the south of the Ming Jiangnan.

The fat prisoner who had replied that Li Yuntian could use the transmission device on the loom left a deep impression on Li Yuntian, and afterwards Li Yuntian specially inquired about the details of the fat prisoner, and was quite surprised to learn that the fat prisoner was one of the first batch of regular prisoners recruited by Nanjing Guozijian this year.

The fat young man was born in the family of a merchant in the south of the Yangtze River, and the family's cloth business was very large, because the family donated a lot of money and grain to the imperial court during the war between the Ming Dynasty and the Tatars and Warats last year, so at the beginning of this year, Emperor Xuande was able to enter the Guozijian with some other merchants who donated a lot of money.

In fact, the Kyushu Chamber of Commerce also has some children of businessmen who were able to enter the Guozijian with donations, and all of them chose the Jingshi Guozijian, but Li Yuntian is usually busy with official business, so he has no time to understand these small things.

Because of this, the fat prisoner linked the transmission device with the loom, after all, he had been exposed to it since he was a child, and subconsciously linked the transmission device to the family business.

Moreover, there was no fat prisoner among the prisoners who came to Beijing organized by Nanjing Guozijian this time, he came to the capital on his own with a few companions, and he rushed over to join in the fun today, so he was despised by those prisoners of Nanjing Guozijian.

However, in Li Yuntian's opinion, the fat prisoner has a smart mind and a strong ability to diverge his thinking, and he will be able to make a difference in time.

Shortly after the end of the "North-South Yong Controversy," Li Yuntian received an official document that surprised and troubled him: The families of the soldiers of the local guard stations in the Liaodong Military Region and the Northern Military Region who had been selected to join the Xiaowu Army asked to join the military households of the Xiaowu Army, instead of being converted into civilian households.

Different from the local health centers, the military households under the jurisdiction of the Jiangwutang not only will not be exploited, but also enjoy a lot of welfare benefits, so the military households whose children are selected into the Xiaowu Army in those local health centers hope to become the military households under the Xiaowu Army.

This made Li Yuntian a little embarrassed, after all, the troops of the Liaodong Military Region and the Northern Military Region have all entered the restructuring system, and it can be said that there is no longer the concept of military households, whether it is the Liaodong Military Region, the Northern Military Region, or even the troops of Jiangwutang, they all adopt the same military system, so Li Yuntian is not ready to recruit Xiaowu military households in the local area.

However, although the troops of the Liaodong Military Region, the Northern Military Region, and Jiangwutang no longer have the concept of military households, there is a saying that all soldiers who join the army will receive preferential treatment such as tax reduction and exemption from the local government, and after retirement, they will also be given priority to work in the local yamen.

In the face of this official document, Li Yuntian specially issued an announcement detailing the reasons why he did not recruit new military households in the Xiaowu Army of the Liaodong Military Region and the Northern Military Region.

As for the military households recruited by the Xiaowu Army before the establishment of the Liaodong Military Region and the Northern Military Region, they were still retained, and they were not affected by this military system change, and became the backbone and solid backing of the Xiaowu Army in the local area.