The Jin army besieged the city, and the Song emperor’s daughter died

Chapter 132: One small step for science and technology, one big step for Song Dynasty
The Caobang incident was a complete unexpected gain.

Not only did he restart the capital navy, he also made a lot of money.

In addition to Caobang, other Kaifeng chambers of commerce also conducted self-examinations. Those who had engaged in "tax interception" behavior, in accordance with the imperial decree, went to the Ministry of Household Affairs to return the stolen goods.

It doesn't matter if you don't retreat. Once you retreat, Hubu will be happy.

From the Xuanhe period to the present, the total "cut-off tax" refunded by these 72 chambers of commerce has almost caught up with the Song Dynasty's annual taxes.

Even Zhao Fujin himself did not expect that Kaifeng City would be so wealthy?
This windfall instantly alleviated many of the previous problems.

Yao Pingzhong has enough money for coal mining in northern Shaanxi.

The Academy of Song Dynasty also has enough money to purchase the materials needed for experiments.

In addition, Zhao Fujin also gave a lot to the Academy of Sciences of the Song Dynasty, but at the same time he also proposed a new research direction: ship cannon!

In an era before firecrackers appeared, teaching Shen Qiong about artillery... was quite troublesome.

Relying on his memory, Zhao Fujin drew a picture of a Ming Dynasty tiger bottle cannon: "I don't know whether the outside is iron or steel. Anyway, the harder the better, you can figure it out for yourself. That's what it looks like. As for loading ammunition, it should be in bulk I’ll think about the weight ratio for collective shooting and let you know later.”

Looking at Shen Qiong's confused look, Zhao Fujin continued: "The thing that shoots out iron pellets that I asked you to make before has the same principle. That one is called a gun, and this one is called an artillery piece."

Shen Qiong frowned for a moment and said with a click of his tongue: "I understand, making a cannon should be much easier than making a gun. Are the officials saying that they want to put this thing on the ship?"

"Do you know anything about ships?" Zhao Fujin asked.

Shen Qiong shook his head.

Zhao Fujin thought to himself that it was fortunate that the Song Academy of Sciences was established at that time and recruited many talents from all walks of life. Otherwise, if Shen Qiong, a person who did not understand shipbuilding, was asked to study how to install artillery on the ship, he was afraid that the cannon would be available by then. I don't know where to put it.

"After I go back, I will communicate more with the officers who understand ships. My idea is to drill holes in the side of the warship and place the artillery in the cabin, so that the strike surface can be wider."

As Zhao Fujin spoke, he picked up the pen again and drew a picture of a warship with holes on its side...

Of course, if she didn't say this was a warship, most people would never think of it.

The drawing is really...sloppy!
"Also, Jinming Pool will be closed in a few days. Without my handwriting, ordinary people can't get in. I will give you one now. Regarding the artillery, you have to run around Jinming Pool more and talk to Let’s talk to Cao Yanchang, the commander of the capital navy, and tell him about the power of the artillery and the location where it will be installed in the future.”

Although Zhao Fujin knew that the two of them were destined to be on the same page, before artillery and warships were equipped, water warfare tactics mostly involved firing bows and crossbows at each other, charging plows, burning ships, forcibly boarding ships and killing people...

But once artillery is added, the tactics are completely different.

Therefore, even if the two of them could not agree to go together, Zhao Fujin had to ask Shen Qiong to do some popular science for Cao Yanchang, so that he could figure out how to train artillery warships in advance before actually equipping the artillery. He had to understand that the future water flow of the capital city would The division is no longer a troop transport ship from the time of Emperor Taizu and Emperor Taizong. It is a powerful weapon for the country that wants to do big things!
After the explanation, Shen Qiong had no intention of resigning. Instead, he took out a porcelain vase from his arms: "Guan, do you want to smell it?"

Zhao Fujin thought to himself: "Is the Academy of Song Dynasty making perfume? Is it so unprofessional?"

The moment he opened the bottle cap, an indescribable smell instantly filled the entire imperial study, and a burst of white mist drifted out from the mouth of the porcelain bottle.

Zhao Fujin instinctively felt nauseated for the first time, and he lowered his head and let out a sigh.

"Officials, be careful, poisonous fog!"

Before Zhao Fujin could react, the chamberlain had covered Zhao Fujin's mouth and nose from behind, and the two imperial guards had already rushed to Shen Qiong and pushed him to the ground. If Zhao Fujin hadn't broken free of the chamberlain in time, With his fat and tender hands, the official yelled to stop. Shen Qiong might have received the lunch box on the spot.Zhao Fujin quickly capped the bottle and asked excitedly: "Is it done?"

Shen Qiong, who was still pinned to the ground at this time, raised his head with great effort and said with a smile: "It's done!"

Zhao Fujin put down the porcelain vase in his hand, quickly walked down the imperial steps, pushed the two guards with swords away, helped Shen Qiong up, and patted him heavily on the shoulder: "You boy, you can do it! I really saw the right person!" "

This sudden conversation between the monarch and his ministers made the imperial guard and the chamberlain in charge of security look at each other. The chamberlain coughed lightly and fanned in front of himself: "Why are you still standing there? Go and open the doors and windows."

Zhao Fujin took Shen Qiong's hand and said excitedly: "I want to make you a marquis and prime minister, and write a book to make history!"

Shen Qiong was stunned and said with a naive smile: "It's not like..."

Zhao Fujin waved his hand: "You know nothing, how can I explain this thing to you..."

Zhao Fujin paced around the imperial study room excitedly: "In short, you are the first person in the world to create nitric acid in thousands of years."

Throughout China's thousand-year history, there has never been a clear record of the production of nitric acid. It was not until modern times, when the degree of industrialization was already high, that nitric acid was self-produced.

As for being No. 1 in the world, that is because as early as the eighth century, during the Tang Dynasty, Arab alchemists had already produced nitric acid using the retorting method. As for why it was not used on a large scale, Zhao Fujin guessed that it might be because of the inability to Let’s mass produce it.

"Nitric acid is extremely precious and easy to evaporate. If it is produced later, it must be sealed and stored." Zhao Fujin warned.

Shen Qiong laughed naively and said: "The official asked me to burn saltpeter to make nitric acid from the beginning. Now it is made, but I am stupid and don't know what the use of this thing is?"

Zhao Fujin returned to the imperial desk with a smile, put down his pen and paper, and was about to speak when he raised his head and waved to the chamberlain and imperial guards: "You guys should step aside first and close the doors and windows."

When only the emperor and his subjects were left in the royal study, Zhao Fujin said while writing: "The black powder fuse used in thunderbolts is extremely unstable. You should already know this. If you want thunderbolts and ship cannons to be able to To exert its maximum power, nitric acid is indispensable.”

Zhao Fujin waved and Shen Qiong came over. Zhao Fujin pointed to the words on the paper and explained: "I have taught you the method of distilling alcohol. Use the same method to distill water. After getting distilled water, add lard and caustic soda to distilled water. After boiling and cooling, don't throw it away. It's called soap. It can be used for washing your face and washing clothes. It will definitely sell for a good price in the future. Store the yellow and thick liquid well. It's called glycerin."

"After getting the glycerin, mix it with nitric acid and sulfuric acid to get a viscous liquid called nitroglycerin. As for the ratio between the three, I don't know, and I need more research from you."

After Zhao Fujin finished speaking, he solemnly reminded: "This thing is the same as black powder, it will explode. So when studying the proportion, the amount must be small. In addition, go to the Ministry of War to ask for a few pairs of infantry armor... No, go and ask for the armor of the Jin Army. When doing nitroglycerin, you must wear a helmet at all times... This is an imperial edict, do you understand?"

She didn't want Shen Qiong to be killed on the spot like Nobel's family, but even so, Zhao Fujin was still worried.

"Masks... I have to get you some masks. Just wait here."

After that, Zhao Fujin ordered people to go to Akihito Palace and asked Chunxia to bring some maids, needles, threads, cloth, and jellyfish to the imperial study room quickly.

Then I drew the masks for Chunxia and others, and asked them to make a sandwich and put some small particles of charcoal inside. I don’t know whether Zhao Fujin used it or not.

I simply think that people in later generations used charcoal to prevent formaldehyde, which must have had some effect.

Outside the royal study, the eunuchs who had been kicked out gathered together and muttered: "Did the Academy of Song Dynasty refine some elixir?"

"It should be something that can ascend to immortality. Otherwise, the government attaches so much importance to it and keeps it so secretive?"

(End of this chapter)