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

Royal study room.

Kang Wang Zhao Gou took the ship's drawings and explained them to Zhao Fujin one by one.

"Sister Huang, now the drawings have been basically finalized. These ships have an all-wood structure. Although they look big, the craftsmen have already made spade nails, iron shovel nails, shovel nails, and leech nails. These can be used to firmly fix the hull. , even if it is bigger, it won’t fall apart.”

Zhao Fujin knew nothing about shipbuilding, so he could only listen quietly and try not to speak.

"These boats are forty-four feet long and eighteen feet wide. Of course, they can be larger."

Although he didn't understand it, Zhao Fujin also knew that it was forty-four feet long and eighteen feet wide, which is equivalent to a length of one hundred and thirty meters and a width of fifty meters. Such a ship should be enough to cope with the ocean.

In Zhao Fujin's impression, the ship Magellan used for his voyages was far from that big.

"As for the hull, the craftsmen set up multiple transverse bulkheads to divide the entire cabin into multiple small cabins according to function. The advantage of this is that it strengthens the stability of the hull, and the subdivision can also play a role in watertightness and anti-sinking. , even if there is no water in one cabin, it will not affect other cabins, and the rescue and treatment will be much easier, but..."

Zhao Gou paused and smiled: "Sister Huang, are those ship-borne Dongfeng cannons waterproof?"

What Zhao Gou means is that there must be a window for the Dongfeng Cannon. The seal cannot be so tight, especially at sea. When encountering wind and waves, some water vapor will inevitably enter.

Will the moisture make the firearm damp?

Zhao Fujin smiled and said: "It's not impossible, but the Academy of Song Dynasty is already improving the storage method, so you don't have to worry about this."

Zhao Gou nodded: "That's good. Two of this kind of ocean-going ships can be built in a year..."

"Two ships?" Zhao Fujin knew that such a heavy weapon would not be built quickly, but he did not expect it to be so slow. If this was the case, it would take ten years to build a fleet of twenty ships.

ten years……

I am almost thirty-five!

"Ah? My brother thinks that we have to ensure safety first. If we rush too quickly, there may be something wrong."

Zhao Fujin understands the principle that haste makes waste. She just has a sense of urgency that "ten thousand years is too long, and she just wants to seize the day." She doesn't know if she can enclose a land in America in her lifetime.

"Have you visited daddy?" Zhao Fujin asked.

Zhao Gou smiled and said, "I've seen it before. On the day of Huan Huan's wedding, my father drank too much, hugged Mrs. Gao and burst into tears, saying that he had lived in vain for decades, and he only understood many things when he got older. "

"Oh? Do you understand what?"

"Dad said that for the rest of his life, he will make the Xuanhe Painting and Calligraphy Academy big and strong. He will leave a reputation in the history books as someone who is not good for the country, but has great talents. He also invited Mrs. Gao to come here if she has nothing to do on weekdays. Come to the Painting and Calligraphy Academy to learn painting and have fun."

Hearing this, Zhao Fujin nodded and chuckled: "Human, the most important thing in this life is to understand yourself. Dad is now considered a Taoist."

Zhao Gou smiled noncommittally: "Sister Huang, now that the world has been settled and the Three Kingdoms are coming to court, it is still early to build ships and go to sea. Shouldn't you think about your own affairs now?"

Zhao Fujin was stunned: "My own business?"

Zhao Gou advised: "Huan Huan is married now. Does the imperial sister really intend to die alone? This time I returned to Kaifeng, I heard from my eldest brother that the second prince of the Jin Kingdom, towards the imperial sister..."

"Haha!" Zhao Fujin laughed and said, "Do you think I'm attracted to him?"

Zhao Gou said with a smile: "That's right. The three princesses don't look down on him, let alone the emperor's sister. But even if she doesn't like the second prince, the emperor's sister still has to make plans. When we were in Hangzhou, I chatted with Qin Xianggong. Very well said."

Zhao Fujin laughed wildly in his heart, these two people really... have a deep bond.

"Tell me, what did Qin Hui say that made you think it was reasonable?"

"Qin Xianggong said that with the current civil and military skills of the Song Dynasty, the government is clear and the people are happy, within a hundred years, there should be no fear of foreign enemies, and there will be few foreign enemies. But the biggest hidden danger is in the court, such as the matter of the crown prince ."

Zhao Fujin smiled and said: "I'm afraid this is not Qin Hui's idea. Do you think so too?" Zhao Gou chuckled and said: "The last time the crown prince matter happened, I stood on the side of the emperor's sister. At that time, I felt that foreign invasion The imperial sister is still in her prime, so we don’t want to think about these things for the time being, but the situation is different now..."

"Let me think about the matter of the Crown Prince carefully." Zhao Fujin interrupted Zhao Gou: "Let's go, I will take you to see something fun."

……

……

Academy of Song Dynasty.

Mo Ming has already created the prototype of a steam engine: a steam ball!

The steam ball is mainly composed of a hollow ball and a sealed pot filled with water connected together by two hollow tubes. The water heated at the bottom of the pot boils and then turns into water vapor and then enters the ball through the tube. Finally Water vapor will be ejected from both sides of the sphere and cause the sphere to rotate.

Looking at the rotating hollow ball, Zhao Gou found it interesting: "This thing looks fun, but what's the use?"

Mo Ming looked at Zhao Fujin and then at Prince Kang: "Your Highness, I don't know what the use is. This is all done according to the official's wishes."

Zhao Gou cleared his throat: "Since Sister Huang asked you to do it, it must be useful."

Zhao Fujin stared at the rotating ball in a daze. In Zhao Fujin's eyes, the rotating ball gradually turned into a propeller: "Take the banknotes!"

When Mo Ming got the banknotes, Zhao Fujin drew a simple sketch of a boat on the paper: "Zhao Gou, come and see."

Zhao Gou came forward.

Zhao Fujin asked: "The shipbuilding in Hangzhou uses sails, right?"

Zhao Gou nodded: "Of course the ship needs sails. If it doesn't use sails, how can the ship move?"

Zhao Fujin did not answer his words, but drew another propeller on the stern of the paper: "If this propeller rotates, can it push the ship to sail?"

Zhao Gou obviously didn't understand the principle, he just frowned and said: "How is this different from a sail?"

Zhao Fujin smiled and said: "Sail, you have to follow the direction of the wind. What if you sail against the current?"

Zhao Gou looked at the propeller again, frowned and said thoughtfully: "Sister Huang, what you mean is that if this object is installed on the ship, there will be no need for sails, and there will be no need to look at the wind direction?"

Zhao Fujin threw away the pen in his hand: "Theoretically, this is the case."

Zhao Gou looked at the rotating steam ball again and suddenly said: "Yes, since the iron ball can spin, let's replace it with an iron piece..."

Mo Ming quickly interrupted: "It's different, it's different. The ball can rotate, but the iron piece can't."

"What if we add a shaft to it?" Zhao Fujin smiled and looked at Mo Ming: "Think about it carefully, but the premise is that you must have enough power to drive the shaft and then drive the iron piece to rotate."

Mo Ming looked confused: "Guan Jia, this water vapor can only have so much power."

Zhao Fujin smiled and said: "Since you are already tinkering with spinning the ball, I will draw you another picture."

After that, Zhao Fujin picked up the pen again and drew a sketch on another piece of paper that no one could understand unless she explained it: "This is the cylinder, this is the base, this is the piston, this is the valve, and this is the valve. Shumen, this is the flywheel."

Mo Ming nodded: "Then what?"

Zhao Fujin explained: "Then what you have to do is to let the steam be sent to the cylinder through the pipe steam. The steam passes through the valve and is controlled by the valve to alternately enter the left and right sides of the cylinder, push the piston, and the crank connecting rod connected to the piston can move. This process needs to be ongoing.”

Zhao Fujin believed in the ability of the descendants of the Mohist family to serve as organs.

Besides, she has already drawn this device so clearly that as long as the materials are appropriate, it should not be difficult for Mo Ming. (End of chapter)