"Teacher, when did you start teaching physics?"

Qin Hui saw the scene just now, but his heart was agitated, and he felt that the sage knowledge and mathematics he had learned before were too useless, and only this physics was the real avenue.

Chao Yong glanced at Qin Hui, who was full of eagerness, and said with a smile: "The book has not been fully written yet, and I am about to lead the troops to the battle, maybe next year." ”

When Qin Hui heard this, he immediately said: "The disciple is willing to accompany the teacher, so that he can listen to the teacher's teachings sooner or later." ”

Chao Yong didn't know if Qin Hui was mixing military merits or really studying, so he shook his head and smiled: "The soldiers are fierce and dangerous, you don't know martial arts, and you may lose your life if you follow me." ”

Qin Hui said: "The disciple is not afraid of danger, although the disciple is weak, he can also block a few knives and guns for the teacher." ”

Chao Yong was reluctant to take a weak scholar on the road, and said with a smile: "I still have something to hand over to you, you have to study mathematics more carefully during this time, and after I lead the troops to go on the expedition, you must continue to teach mathematics in Taixue, and it is best to bring a group of disciples out to teach the way of mathematics to the world." On the day of success, your reward is indispensable. ”

When Qin Hui heard the reward, a glimmer of light flashed in his eyes, but he said with a clear face: "Rest assured, the disciple will definitely do his best to spread the way of mathematics." ”

Chao Yong nodded, and suddenly asked, "You are from a Jinshi background, and you are also a literati." Let me ask you, what is the relationship between religion and the imperial court? ”

Qin Hui heard Chao Yong ask about religion, his mind was racing, thinking of a few monks and Taoists in Tokyo who pretended to be gods and deceived people of money exposed in the newspaper yesterday, and vaguely guessed something, and said respectfully: "The students think that religion is not conducive to the rule of the imperial court, like Buddhism and Taoism, they do not produce and evade tax service." It also squeezes the hard-earned money of the people. Moreover, most of the teachings preached by these religions are that they have no kings and no fathers, and only recognize the gods and Buddhas they worship, but do not recognize the monarch's fathers. ”

Chao Yong saw that Qin Hui had guessed something, and believed that Qin Hui was a smart person, so he asked directly: "If the imperial court abolishes religion, will it have a bad impact on the hearts of the people in the world?" ”

Qin Hui heard the prince say this, and he also knew that he had guessed correctly, and the prince asked him so bluntly, it seemed that he really regarded him as a disciple. Holding the ecstasy in his heart, he said: "No, I rely on the etiquette and the three outlines and five constants formed over thousands of years to maintain people's hearts in China. The monarch is the minister, the father is the son, the husband is the wife, benevolence, righteousness, propriety, wisdom and faith, these are my Chinese moral norms. Although the gods of those religions, hell and so on also have a certain good influence on people's hearts, they do even more damage to the Tsunamus. Antiquity without religion. People's hearts are more simple. ”

Although the policy of exterminating the religion has long been set, Chao Yong will never waver. However, only by conducting multiple investigations can we know what obstacles we will face in the future, and we can also prepare countermeasures.

Chao Yong nodded and said, "That's right, I'm going to the barracks, and I won't teach today." ”

"The student quits."

Qin Hui didn't listen to the lecture, so he retired with a stunned face.

Wait for Qin Hui to leave. Chao Yong said to Xu Guanzhong and Zhu Wu: "What do you think of this person? ”

Xu Guanzhong is not a pedantic person, so naturally he will not say stupid things that a gentleman does not talk about people behind his back, otherwise no one will comment on others, and it is difficult for the emperor to investigate everyone himself.

"It seems that he is a loyal and filial person. It's also very studious. ”

Zhu Wu replied to the question: "This parachute is also a sharp weapon, but I can't think of where it can be used for a while." ”

Chao Yong smiled: "It's still very inconvenient to use, and it's easy to get into trouble, so it's not very useful." Maybe you can use it with a hot air balloon. ”

Zhu Wu clapped his hands and said, "Yes, you can jump off with a parachute from a hot air balloon." Fall directly into the enemy's ranks. ”

Shi Yong has the most say in the parachute, and when he heard this, he immediately said: "I was shot into a hedgehog before I landed." ”

Zhu Wu smiled: "You can jump to a place where the enemy is not guarded." ”

Chao Yong shook his head and said: "If the hot air balloon can carry many people, it will be fine, otherwise it will be useless to jump a few people." ”

Zhu Wu is very optimistic about the military application of these new things, and said with a smile: "Is there any progress in the hot air balloon now?" ”

Chao Yong said with a smile: "Hou Jian took people to study in Jinmingchi, and I just reported yesterday that I can already fly into the sky, let's go and take a look." ”

Shi Yong said: "The cloth used for the parachute is Hou Jianxuan's, which is both strong and can hold the wind. The hot air balloon had to be big enough, not leaky, and not too heavy, and Hou Jian tried a lot of cloth and paper before succeeding. ”

When Chao Yong first thought of making a hot air balloon, he felt that the biggest difficulty might be the material problem of the balloon, and now there is no high-tech material, and the only thing that can be used should be cloth, so Chao Yong asked the gibbon Hou Jian to take charge of this matter.

Hou Jian is known as the first-hand tailor in the rivers and lakes, and he is naturally familiar with all kinds of fabrics, and Hou Jian flies the needle and thread, if someone can sew something airtight, it must be Hou Jian.

After the Great Liang conquered Tokyo, Hou Jian was responsible for formulating the court robes, although he still did tailoring work, but he was also a high-level official.

After Hou Jian heard that the prince asked him to sew something that could fly, he immediately threw away all the work at hand and moved to Jinmingchi, closed his door, and hid in Jinmingchi to develop hot air balloons.

Jinmingchi is the most ideal test site, empty enough, and people are not allowed to enter it on weekdays. After Chao Yong decided to make a hot air balloon, he applied to the emperor to designate Jinmingchi as a forbidden place, and officials were not allowed to enter it.

The most important thing is that the safety is higher, as long as it does not rise to a height of dozens of zhang, even if it falls into the water, there will not be much danger to life.

The principle of hot air balloon is simple, but it is not a simple thing to make a hot air balloon that can carry people. Hou Jian racked his brains to come up with a way to combine cloth and paper and make a qualified hot air balloon.

Everyone also wants to see what can make people fly in this era, and the war horse under the crotch is also faster.

As soon as I entered the Jinming Pond, I saw a balloon the size of a house floating in the air a few feet high, and a basket hanging underneath, and an iron box between the basket and the balloon, which was burning with a raging fire. There are also a dozen ropes fixed to the ground under the basket, as if the rope will go straight up for nine days as soon as the rope is released.

When everyone saw the hot air balloon flying in the air, their eyes immediately straightened.

Chao Yong was also a little excited, although in later generations there were many tools that could fly into the sky, but in this era, there is no doubt that only hot air balloons can make human beings realize their dream of flying.

Underneath the balloon is a wooden shelf built into the water that resembles a rocket silo of later generations. This was by no means done under Chao Yong's prompting, but pondered by Hou Jian and others.

The people in the pool also saw the prince and his party, and hurriedly drove the boat to the edge of the pool.

"Meet the Prince."

Hou Jian jumped ashore and saluted loudly, and his face could not hide his pride and pride.

Chao Yong smiled: "I thought it would take a while, but I didn't expect it to be made so quickly, everyone has worked hard, and each person will be rewarded with a hundred yuan." Hou Jianguan was promoted to one level. ”

"Thank you for the reward."

"Thank you for the reward."

When the sailors and craftsmen on the ship heard that each of them was rewarded with a hundred yuan, they hurriedly thanked them loudly.

They also thought that the prince would reward him. But I never expected that there would be so many rewards. It is said that their work is not very hard, that is, the sailors have suffered some cold while building a platform in the water.

Chao Yong smiled: "How high can this hot air balloon fly?" ”

Hou Jian shook his head and said: "This has not been tested yet, and the people outside the Gao Fei Jin Ming Pool can see it." Now in the quiz how long can it be lifted off. ”

"Oh? How long can that fly? ”

Hou Jian said: "Now it is burning fierce fire oil, and if you keep the current flame, you can burn it for half an hour." It is possible that the higher the need, the greater the flame. This one needs to be tested. ”

Chao Yong smiled: "The flame can be adjusted in size? ”

Hou Jian nodded and said, "Yes, it seems that by adjusting the size of the flame, the hot air balloon can be raised at different heights." ”

This is the conclusion that Hou Jian drew from the experiment, but Hou Jian did not understand the truth.

Chao Yong naturally knew that this was just a matter of adjusting the density of the hot air in the balloon by heat, thereby changing the height of the balloon.

Zhu Wu was eager to try: "Since this hot air balloon has been successful, why not test how high he can fly?" ”

Xu Guanzhong also said: "Shi Yong parachuted in the iron tower just now, which has already made many people think that it is the prince's immortal means, so strike while the iron is hot at this time." Flying people into the sky with hot air balloons, I am afraid that all the people will think that this is a means of immortals, and physics may also become theology, and it will be much easier for the prince to promote theology at that time. Those religions can also be solved easily. ”

Hou Jian also said: "This hot air balloon has been flying for a day. It's time for it to fly freely. ”

Chao Yong said: "It's okay, then fly, who wants to fly?" ”

"I fly."

"Me"

"Me"

As soon as the words fell, three people scrambled for each other.

Chao Yong looked at Zhu Wu a little strangely. Hou Jian and Shi Yong competed, he was understandable. After all, the hot air balloon was made by Hou Jian. It makes sense that he wanted to be the first to fly into the blue sky in a hot air balloon. And Shi Yong is a stupid and bold person, the first to parachute is addicted, and it is not surprising that he wants to be the first to fly again. Only Zhu Wu surprised him a little, Zhu Wu is proficient in military formations, and he is also very stable on weekdays, so it stands to reason that he is not such an impulsive person.

Zhu Wu said with a smile: "I want to go to the heavens to see everything in this world, of course it would be better to be the first to go up." ”

Hou Jian hurriedly said: "Let's come, I am more familiar with the operation of the hot air balloon, and it is done by me, if there is danger, I will naturally bear it." ”

Shi Yong said: "It's okay, if you fall to death, you will fall to death, and it is worth it to be the first to go to heaven and die." ”

Chao Yong shook his head and said, "Maybe the hot air balloon is not as high as the tower, what is there to grab." ”

Shi Yong said: "Standing on the iron tower, it is still on the ground, and only by taking this hot air balloon can it be regarded as flying." ”

Chao Yong looked at the obsessed Shi Yong and said: "The first flying sky will definitely go down in history, and this glory is still left to Hou Jian." If you want to fly, I'll go back and give you a few days off to let you fly enough. ”

Shi Yong and Zhu Wu heard Chao Yong say this, and it was not easy to fight again.

"Wait for me."

Everyone got on the boat and was about to leave the shore, when they saw Shi Qian rushing from a distance.

It was still more than a foot away from the ship, and Shi Qian rushed to the ship with an arrow step.

Chao Yong smiled: "Why are you here?" ”

Shi Qian said with a smile: "I heard the fleas below say that you are coming to Jinmingchi, so I came to take a look, if this hot air balloon flies, I can't be the first person to fly, why should I be the first to watch him fly." ”

Hou Jian said with a smile: "The prince said, I was the first to fly into the sky." ”

After the blockade of Jin Mingchi, Shi Qian came to inquire a few times, and he was also very hot for hot air balloons, and he had sat on it a few times, but the height of a few zhang could not satisfy his heart to fly.

The wooden frame in the center of the pool is divided into two levels. There are wooden ladders on the sides for going up and down.

When everyone came to the wooden frame, Hou Jian explained: "The cloth on it is afraid of fire, so it can only be placed on the second layer of wooden frame, and when taking off, it must be ignited and heated on the first layer, and the ball on it can be swelled up, and then it can rise into the air." ”

Zhu Wudao: "Then if the hot air balloon falls, won't it be wasted?" ”

If the hot air balloon is disposable, although the role of the hot air balloon is still there. But it will also be much less.

Hou Jian shook his head and said: "This is not true, after turning off the fire, just cover a wooden board on the fire cabinet to insulate the heat." ”

Chao Yong didn't expect Hou Jian to think it so thoroughly, although there are still many improvements, but there is no doubt about it. Hot air balloons are ready to fly.

Under the command of Hou Jian, the people on the hot air balloon turned off the fire and lowered the hot air balloon.

Pushed by a few soldiers on top of the wooden frame, the gondola landed accurately on the first floor, and the soldiers on it grabbed the deflated balloon.

After filling up the fuel, Hou Jian boarded the hot air balloon and prepared to take off.

Chao Yong felt the direction of the wind. smiled: "It's the northwest wind now, you should fly in the direction of the palace when you rise to the sky, if you can fall in front of the Xuande Gate, it would be the best, I will ask the emperor to watch from the Xuande Gate." ”

Hou Jian smiled: "Leave a few ropes under the hanging basket." When I fly in front of the Xuande Gate, I will lower the altitude, and if I am still floating forward, I will let the guards drag me down. ”

"Okay, then we wish you success in flying."

After the firebox is lit again. Soon the balloon inflated and lifted into the air.

The ropes on all sides have been untied. Soon the hot air balloon rose to dozens of feet, and the people in the hanging basket could no longer see clearly.

Chao Yong saw that the hot air balloon had been blown by the northwest wind and floated towards the city, so he also went ashore with everyone and came to the city.

Although Hou Jian has been testing hot air balloons for the past few days and is used to riding hot air balloons, he was a few zhang high before, and when the hot air balloon rose to dozens of zhang and the people below became black spots, Hou Jian couldn't help but weaken his legs.

Tightly tugging on the rope on the hanging basket, he closed his eyes and rested for a while before he dared to open his eyes and look down again.

After slowly getting used to this height, Hou Jian began to test the limit of the hot air balloon's ascension, and when he felt that the hot air balloon could no longer rise, the whole of Tokyo had become a small square.

In order to save fuel, Hou Jian began to reduce his firepower again and slowly lowered the hot air balloon.

Although the fire was decreasing, Hou Jian's blood was getting hotter and hotter, because he was about to fly into the city of Tokyo.

That's right, fly in.

He was the first person to fly into Tokyo, and he was also the first person to fly into the sky, and his name will be remembered in the history books.

Even if future generations don't know the name of this year's champion, they will definitely know his name.

The first person to fly - Hou Jian.

"What's that?"

"There seems to be someone in that basket."

"The demon, it must be the demon, you can't let him enter the city and shoot him down."

The soldiers guarding the city wall were the first to spot the hot air balloon in the air and screamed. There are cowardly people who are frightened and overwhelmed, and there are also bold ones who are ready to shoot Hou Jian down with bows and arrows.

Hou Jian saw that someone was about to shoot an arrow, and he was immediately frightened, he might be able to dodge, but the balloon on his top that was bigger than the house was the best target, and it could be burst with one shot. Once the air leaks, then he has only one end, which is to fall into a meatloaf.

In order to let the people in the city clearly see his appearance as the first person to fly in the sky, Hou Jian deliberately lowered the hot air balloon to a height of more than ten zhang, and the Tokyo city wall is ten zhang high, and the hot air balloon can fly over the city wall.

It's just that Hou Jian didn't expect this decision to put him in danger, and it was too late to rise to the top at this time.

Hou Jian didn't want to die under his own arrows, so he hurriedly shouted: "Don't shoot, this is a spaceship made by the prince." ”

Chao Yong's personal soldiers, who had been following the hot air balloon below, heard Hou Jian shouting, and hurriedly shouted: "That's right, this is a spaceship made by the prince." ”

Today's wind is not very strong, and the speed of the hot air balloon is only about the same as that of a war horse. Chao Yong and the others rushed into the palace first and reported to Chao Gai.

The soldiers on the city wall couldn't recognize Hou Jian, but they could recognize that the soldiers below were the prince's personal soldiers, so they put away their bows and arrows, and the soldiers who had previously said that the demon people also gave themselves a few mouths.

Soon the soldiers on the city wall unified their opinions, this is the prince's immortal means.

The shouting in the air and under the city also made the people under the city pay attention to the hot air balloon flying in the air, in the eyes of the people, this is definitely a fairy method, no one dares to think of the demon as soon as he says it, plop, plop and kneel on the ground.

Although Hou Jian was more than ten zhang in the air, he could also hear that the object of worship below was the prince.

He was also a little helpless, the soldiers at the head of the city were not Liangshan veterans, and no one might know him, so he could only call out the name of the prince, although the principle of the hot air balloon was told to him by the prince, but this hot air balloon was made by him.

Originally, I wanted to show off, but I didn't expect to give the prince the name of making hot air balloons. Hou Jian felt a little like crying at this time, and he was also afraid that there would be some stupid soldier in the city who would shoot him down with arrows, so he hurriedly increased the flames, and the hot air balloon flew more than ten feet high.

The spaceship is an external designation, to prevent anyone from thinking of the principle of a hot air balloon from the name. Although this hot air balloon and Kong Ming Lantern look so similar, Xu Guanzhong still thinks that if he doesn't reveal it, no one will boldly think that a fire can bring people to the sky, and the principle of the hot air balloon can be hidden for a while, so Chao Yong decided to use the name spaceship.

Although the hot air balloon does not look like a ship from anywhere.

The soldiers and civilians below saw the spaceship made by the prince flying into the sky again, and they couldn't stop kowtowing.

After passing the city wall, Hou Jian lowered his height again and swept past the city.

(To be continued)