"Your Majesty, something bad has happened. The Kingdom of Wu has sent 300,000 troops. We will reach Beiyin Fortress in less than half a month. We..."
"Shh!"
Qin Yun carefully linked a model.
One side is a coil made of gold wire, and the other side is a magnet obtained from the volcano discovered earlier.
As the gold wire cuts through the coil, the burnt charcoal filament placed in the center suddenly lights up.
Qin Yun was overjoyed: "It worked. I am indeed a genius!"
"By the way, what did you just say?"
"Your Majesty, the Northern Qi army will arrive at the city in half a month!"
Qin Yun smiled and said: "It's still early, don't rush! Order the Ministry of Household Affairs to allocate copper coins to melt and cast copper wire, which is about this thickness. In addition, let people scrape some raw lacquer. Remember it is poisonous, so let them pay attention!"
"promise!"
Yue Qing came in with a smile: "Your Highness, King Qin, what are you doing?"
Then he took a breath of cold air: "Did you melt all the sisters' gold jewelry?"
Qin Yun touched his head awkwardly: "Isn't this an experiment? Gold has the best conductivity. Let's borrow it for a while. I promise to make more gold objects for you in the future."
Shen Yue came up from the side: "What's the use?"
Han Jiangxue, Bai Wanqing, and Li Daiyu also followed. After Matsumoto recovered from his injuries, he took a boat back to Fusang for retreat. Before going back, he threatened Qin Yun that if he dared to hurt Li Daiyu, he would kill his whole family!
Of course, Qin Yun listened happily.
Seeing the girls coming, Qin Yun began to rotate the coil at a constant speed, but the carbonized bamboo wire connected to the wire instantly glowed.
This bamboo silk is the simple wick prepared by Qin Yun, which is covered by a semi-enclosed glass cover.
The girls looked at the soft light, each one intoxicated.
"My lord, is this divine light?"
Qin Yun said angrily: "This is an electric lamp. The metal wire cuts the magnetic field to generate current. The current is transferred to the wick through the positive and negative electrodes, thus emitting light."
"Of course this is just a simple prototype of a DC generator, very rough. I used it to verify its credibility!"
Everyone nodded.
"Your Majesty, let me give it a try!"
Han Jiangxue stepped forward, and Qin Yun motioned for her to shake it.
"Crack!"
However, Han Jiangxue used too much force and the fragile bamboo charcoal filament was directly burned out.
Han Jiangxue looked remorseful: "Your Majesty, I didn't mean it!"
Qin Yun smiled and said: "It's okay, it's just a bamboo wick. When you find tungsten ore and use it as a wick, it can burn for a long time."
"Your Majesty, where is the tungsten mine? I'll find it!"
Qin Yun shook his head: "The tungsten mine is buried deep underground and I want to dig it..."
"No, maybe there is one there, but don't worry, let's wait until Lu Ban and the others arrive."
At this time, Zuo Sisi came to report.
"Your Majesty, Master Lu and the others have arrived at the port!"
Qin Yun's eyes lit up: "Really? I will go to greet you right now."
After Qin Yun left, the girls followed behind him and whispered.
"Today we draw lots, whose turn is it?"
"It's time for Sister Shen Yue to serve the prince!"
Shen Yue's pretty face turned red: "Is it my turn? But forget it tonight, the prince's old love is coming."
The girls giggled, especially Li Daiyu, whose personality changed after the fusion of memories.
"Shen Yue, tell me about the prince's stay in the capital!"
Shen Yue paused: "It's hard to say, but the prince is very good at writing poems!"
Bai Wanqing smiled and said, "I've received it too."
Han Jiangxue: "Me too."
Li Daiyu said it was unfair: "I also want to ask the prince to write poems!"
Yue Qing: "Do you understand? In my opinion, it's better to train the forbidden army for me."
"Stop looking down on people, I already know fifty Chinese characters."
The girls were all smiles.
"Quickly go and pick up the remaining sisters."
…
On the dock, Qin Yun looked forward to it!
When he saw Granny Jiang and Jiang Yingying disembarking from the boat together, he hurriedly greeted them. Liu Guanguan and Zhou Meiniang followed behind them.
"Your Majesty!"
The eyes of the three girls moistened, and Qin Yun poured into his arms one after another.
Grandma Jiang glared at Qin Yun angrily: "Are you deliberately stabbing my old woman's eyes?"
"What did Granny Jiang say? Hey, this is Senior Li? Why are you here too!"
Li Daoling smiled and said: "Junior sister arrived at Ryukyu, so I followed her out for a walk. I heard that you had a fight with Matsumoto Taketo, how about it?"
Qin Yun smiled and said: "Not bad, this is Matsumoto Wudou's disciple."
"Daiyu, I have met Senior Li!"
Li Daoling looked at Li Daiyu and smiled: "Miss Qiandai, we meet again!"
"I've seen it before, Senior Li!"
"Do you know each other?"
"Her master and I have a pretty good relationship. King Qin is really powerful. He can even pick this golden flower."
"Okay, I'm not ashamed!" Granny Jiang said, and Li Daoling hurriedly shut up.
Qin Yun paused, Wang Menghu's love rival is here!
"Mother-in-law, Wang Menghu is injured, so it's not convenient to come to greet him."
Grandma Jiang frowned: "Where did the injury come from? Is it serious?"
"It's not serious, it's not serious. Why didn't you ask someone to notify me, brat!"
Everyone looked back and saw that Wang Menghu was walking with a cane, but there was no sign of injury on his face.
Li Daoling: "Junior sister, is this old boy still pestering you?"
"I want you to take care of it!"
Grandma Jiang greeted Wang Menghu, but she pulled his ears and scolded him.
Li Daoling smiled and said nothing, while Qin Yun ignored the affection between these old Beibis. He turned around and warmly greeted Lu Ban, Zhutie Ling, and the craftsmen.
"Welcome everyone!"
"Your Majesty is too polite. This time, Your Majesty invites us to come. But is there a big move?"
Qin Yun said: "It's windy here, please come back!"
…
In the Beiyin Mountain Palace, everyone gathered together and cheered continuously.
Lu Ban said: "Your Majesty, is the hot air balloon still enough?"
Qin Yun: "The stability of this thing when I tried it was too poor, the platform was too small, it was difficult to deploy, and it couldn't carry heavy weapons. Therefore, it is necessary to develop new things."
"This is a drawing, look at it!"
Lu Ban took it and looked at it carefully, then handed it to Zhutie Ling.
"Your Majesty, this design and structure is not difficult. All you need to do is install a small steam engine. But the problem is how can this airship fly up? According to "The Theory of Air" written by Your Majesty, when the capturing force of an object is less than that of a heavy object, it will Can’t float.”
Qin Yundao said: "So, we need something lighter than air. I already have a way to prepare this thing. The premise is that the problem of electricity must be solved."
"However, this is not a problem. This is the generator design. You two take a look. This is the experimental device."
Lu Ban and Zhutie Ling looked at each other, but devoted themselves to the research with great interest.
"My lord, is it electricity that makes the bamboo core glow?"
Qin Yundao: "Yes, it is electricity, and we can use electricity to electrolyze seawater. In addition to hydrogen, we can also obtain other important chemical products. However, hydrogen is flammable and explosive and needs to be properly stored and handled."
"Don't worry, Your Majesty, we have improved the hydraulic tank. This time, we can make a bigger one."
"It's just that you can't let people shake your electricity all the time, right?"
Qin Yun smiled: "How is that possible?"
"Add a drive shaft and a steam engine. What do you two say?"
"Haha, the prince is so smart!"
Qin Yun: "It's not that I'm smart, it's the fact! By the way, how is the situation in Qiongzhou?"
"Everything is fine, military production has increased significantly, and the shipyard is running in an orderly manner. Now another warship has been produced. According to the prince, this warship has a displacement of 1,600 tons!"
Qin Yun was overjoyed: "Okay, very good, I finally have a decent battleship."
"How is your training going? When can you join the army?"
"Back to the prince, it will take at most half a month to load up the weapons and equipment and go to sea. However, it seems that there is a war in the south of the Yangtze, and many people from the Central Plains have fled back."
"Luzon?"
"Yes, it is said that the Red Yi people!"
Qin Yun's eyes narrowed: "Everyone, our actions must speed up!"
Qin Yun thought of what William said before, the progress in the West is not slow.
