Nanjing, near the Ten Ministry of Justice.

Xu Zhengming, who could not get close to the emperor's office, placed the flying chair on the street and stepped on the pedals to attract passers-by.

According to the records in the Wuxian Chronicle, this flying chair looks like a skeleton chair. "There are mechanisms underneath, and the teeth are incorrectly combined", that is, it is driven by gears. "In the chair, two feet hit the plate, and the wind is rotated and swirled", that is, using the foot pedal to drive the gear, and then the propeller rotates and takes off.

Under the gaze of the people of Nanjing, the propeller was rotated rapidly, and the fan was blowing dust on the flat ground.

He even flew up with the man and the chair.

"What a strange thing!"

"Fly higher and fly to the roof!"

"This place is too close to the royal family. If you fly higher, you will be afraid that you will fall into His Majesty's yard."

"Oh, I've fallen!"

Xu Zhengming got up in a dirt face, his right skin was scratched, and his pants on his knees were also broken. He patted his palms and said in a bad official language: "Dear neighbors in Nanjing, I am Xu Zhengming, I am here to present a flying chair to Your Majesty. I can't see Your Majesty, so I will offer treasures to the neighbors first. If I like it, I will give you a few rewards. To be honest, I will use up all my money and my residence has not yet been settled."

"Fly again!" Someone started to cheer.

Xu Zhengming smiled and said, "Okay, let's fly for the neighbors again."

His flying chair has been improved, and it can fly more than two feet high, which is nearly one meter. Moreover, there are small propellers at the tail, which can be pushed forward and even operated and steering.

"The up and down mechanism is the wind whirling", the top is a large propeller, and the bottom is a small propeller.

There were more and more people watching, and even the patrol officers came, and they kept standing by the roadside to watch the strange things.

Unfortunately, this thing was too laborious and had to pedal crazily. The feet were slower, and the flying chair fell down immediately, falling down every time, and never landed smoothly.

Seeing the flying chair falling to the ground, the patrol immediately stepped forward and scolded: "There are no jokes in the streets here, and no crowds are allowed to gather. Leave quickly, otherwise you will be fined!"

Xu Zhengming quickly got up and bowed his hand to please him, "This official, the grass-roots man wants to meet His Majesty, so he came from Suzhou to offer this item."

"I want to see Your Majesty and send a letter to the big mailbox over there to state what's going on," said the patrolman. "If Your Majesty wants to see you, send someone to summon him."

Xu Zhengming said: "It has been several days since I invested in the letter, and there is no news at all."

The patrolman smiled and said, "That's because your Majesty doesn't want to see you."

When I first set up a mailbox in Nanjing, the people thought it was fresh and wrote letters to submit trivial matters.

Gradually, they found that the emperor was too lazy to write letters after a long time.

Nowadays, most of the letters written to the emperor are sent by folk scholars, and there are only two contents: one is to make suggestions, put forward your own political opinions, and want to win the favor of the emperor; the other is to write poetry and articles, and want to impress the emperor with your literary talent.

There is a guy who wrote one letter a day and his name is familiar to Zhao Han.

Zhao Han made him directly ask someone to post a notice next to the mailbox: "You must not submit a message to you. If you commit another crime, your descendants will not be allowed to become officials!"

Under the urging of the patrolman, Xu Zhengming and his son carried the flying chair and were about to leave.

But I saw a strong female official riding a horse and shouting along the way: "Who is Xu Zhengming? Who is Xu Zhengming?"

"I am, I am!" Xu Zhengming waved his hand quickly.

The female official scolded: "Why can't I find you in the inn? It's easy for me to find it, and my voice is hoarse."

Xu Zhengming smiled and said, "It has been half a month since I came to Nanjing. I have used up all my money. The inn guy drove people with sticks."

The female official said, "Follow me and bring your stuff with you."

The father and son carried the flying chair and left inexplicably.

He heard that the emperor liked strange things, so he took the risk to Nanjing.

Zhao Han was in Liu Rushi's courtyard, and Liu Rushi was walking and singing under the shade of the tree with her big belly. Li Xiangjun, a female official, sat next to her and played the pipa accompaniment.

"The geese are fighting in the south, and the west wind is so strong that it is hard to hear, and the sky is loud and clear. The music and calligraphy are hard to be beautiful, let alone the smell of fishy animals, who can visit the beauty with a weak life? There is a lifelong lonely life when Wusun was sent to the west, and there are also a deserted tomb and smoke locked in the grass... "

This is a scattered song from Liang Chenyu's "Bai Zhuo in Jiangdong". The content is to pay tribute to the battlefield of ancient Luntai. The lyrics of the song are desolate and magnificent.

Sanqu is different from opera.

Opera can be understood as Chinese opera, while Sanqu is a popular song from the Ming Dynasty. It is still very nice to be used to it.

After the song was finished, a female official came to report: "Your Majesty, Xu Zhengming brought it."

"Let him come in." Zhao Han said.

The moment he saw the flying chair, Zhao Han couldn't help laughing. This was a helicopter with only seats and propellers left.

"Caomin..."

Zhao Han stopped: "Don't kneel, I'll take a look when I come over."

The flying chair was moved to Zhao Han. He squatted down regardless of his image and turned the pedal with his hands. The two propellers really turned.

Moreover, it is a fully wooden structure, and even the gears are made of some kind of hardwood, and a lot of sesame oil is applied between the gears to lubricate.

The whole "helicopter" does not have a single nail.

Black technology!

Zhao Han stood up and said, "You can try flying."

Xu Zhengming sat in the flying chair and stepped on the pedal again. In front of the emperor, he was particularly strong and flew more than one meter high, flew forward more than five meters away, and then... he crashed with exhaustion.

This time it flew too high and broke the blades of the propeller directly.

"Hahaha!"

Liu Rushi and Li Xiangjun were both amused, and at the same time they were shocked by this thing.

Xu Zhengming's son hurriedly ran to help him up, and the father and son knelt on the ground. Xu Zhengming explained: "Your Majesty, the grass-roots people can improve further, and they will definitely fly across the mountains and rivers in the future!"

Zhao Han said, "All of them are up, sit down and talk."

"Thank you, Your Majesty!"

The father and son quickly stood up and bowed to the female official who was carrying the chair to thank him.

Zhao Han asked, "Are you a carpenter?"

Xu Zhengming said: "That's right."

Zhao Han asked again: "How is your livelihood?"

Xu Zhengming said: "I have to thank Your Majesty for your blessing. After you lose your craftsmanship, you don't have to serve the government anymore. You don't have to worry about food and clothing when doing some carpenter work on weekdays. Even the money you earn is used as a skillful thing, and sometimes your family will lose food and go hungry."

"How long have you made this thing?" Zhao Han asked.

Xu Zhengming said: "For more than ten years, I couldn't fly at first, but then I fell down as soon as I left the ground. Your Majesty, as long as the grass people work for another ten years, they will be able to fly higher than the city wall. At that time, you can build hundreds of flying chairs for Your Majesty, and fly straight from the city tower when you attack the city."

Zhao Han thought of the Datong Army soldiers and was sieging the city with a helicopter... The picture was too beautiful and I dare not watch it.

Zhao Han asked, "Do you have the word "大"?"

Xu Zhengming smiled and said, "The grass-roots are just carpenters. Although I have read books for a few days, where can I get the word "table"?"

Zhao Han said: "Only wood follows the rope, it is straight, and when wood is burned, it is bright. If you are a carpenter, it is better to take the name Wood De."

"Thank you for your words!" Xu Zhengming was overjoyed and jumped up from the chair and knelt down to thank him.

"Get up," Zhao Han said, "This flying chair is put on hold for the time being. There is no need to go to the sky as soon as you come, but start from the ground. Your pedal is done well, so it's better to make a car that can be stared at you."

"Car?" Xu Zhengming looked confused.

Zhao Han asked the female official to take the paper and pen, draw a bicycle, and said, "People can move forward by sitting on the pedal."

Xu Zhengming asked, "Don't you fall down? Why don't you make four wheels?"

Zhao Han smiled and said, "If you ride fast, you won't fall. You can make three wheels or four wheels."

No matter how many wheels or a bicycle without a chain is very difficult to pedal. The thing is driven all by the front wheels, with large front wheels and small rear wheels, and it is bumpy and uncomfortable due to the lack of pneumatic tires.

Zhao Han asked Xu Zhengming to make bicycles just to exercise.

Zhao Han said: "Take my handwriting and go to the Imperial Heaven Academy to find Fang Yizhi, and learn mathematics and physics with him."

Xu Zhengming said: "Your Majesty, the Mathematics and Grassman Association."

"You know how to do math?" Zhao Han smiled.

Xu Zhengming said: "Caomin's youngest son is also studying. Caomin learned his math textbook by himself. It is not difficult. Just remember the numbers of the vassal states. Many things are the same as arithmetic."

Zhao Han was even more satisfied and said, "Then I will give you an errand. While following Fang Yizhi to learn physics, he also improved the existing spinning and loom machines. It is best to make a large machine, which can spin a lot of yarn and weave a lot of cloth at one time! When you make the machine, you will apply for a patent for you. The silver earned from the patent will be divided into 70% of the imperial examination, and you will share it with 30% of the money you earn by yourself."

This is not an unfair contract, because the research and development costs of improving the loom are provided by official funds.

"Abide by the order!" Xu Zhengming learned the tone on the stage.

This guy still wanted to continue to study helicopters, but the money he earned was not enough to make ends meet. So he came to see the emperor and wanted to get some silver rewards to live.

Now it’s better. If you have an errand in the Imperial Academy, you can make money while fiddling with the plane.

Moreover, you can also use the "scrap materials" of wood for free using the excuse of improving the loom.

With the introduction of hydraulic spinning machines in Jiangxi, the speed of the fabric cannot keep up with the spinning speed. Therefore, a few years have passed, and the textile machine has also improved, but the efficiency of the textile fabric has only increased by about 20%.

Zhao Han doesn't understand textile machinery either. Now he catches someone who can make helicopters, so of course he has to throw them into some serious business.

In an era when the power system cannot be followed, developing helicopters is indeed a "donkey to lose one's ambition"!

If Xu Zhengming continues to do it, he will be killed by falling to death one day.

After this person left, another female official came to report: "Your Majesty, Hong Chengchou and others have been brought to Nanjing."

"Send it to mining." Zhao Han was too lazy to see these traitors.

There were a lot of things in Shandong, Hong Chengchou and Zuo Liangyu were almost forgotten. It was not until Fei Ruhe was ordered to move the army that he suddenly remembered that there were still a bunch of senior prisoners, and he hurriedly sent them to the border of Jiangsu to quarantine, and then took a boat to Nanjing.

Wouldn't it be too cheap to kill Hong Chengchou?

Zhao Han doesn't like to mess with Lingchi, and he feels unhappy after slashing with one knife. Then send it to mining and be a working people. How many years can you live depends on the fortune of the traitors.
Chapter completed!