Gu Qing thought for a while and said to Li Xiang, "The Tang Dynasty is now powerful and has a large part of its contribution to technology. Let's put it this way, with the Tang Dynasty and the Tang Dynasty without firearms are two levels. The Tang Dynasty has overwhelming advantages in controlling firearms that other countries do not have. From the war in the beginning to the war in the Tang Dynasty today, the combat power is very different after having firearms."

"From the beginning of the wooden tool to the iron tool, this is a transformation. For example, if one nail is missing, one piece of hoof is missing, one piece of hoof is missing, one war horse is missing, one horse is missing, one rider is missing, one rider is missing, one victory is missing, one country is missing."

Gu Qing said it very slowly, and Gu Xiao listened very carefully.

"One country has no iron nails, and another country has iron nails. This difference will be because of the iron nails. Of course, this is just an example. There is another effect of this argument back then, which is the chain effect. When you have power that others cannot control, you can destroy your opponent in an instant. This power cannot be measured by common sense. It is like you fight with a person, and he is holding a bare hands and holding a wood, or someone else is watching the wood, and you are holding a dagger."

"Disciple understands a little." Li Xiang nodded, "Now the Tang Dynasty has firearms, so how can the Tang Dynasty become more powerful in the future?"

Gu Qing smiled and said, "Firearms are just one level. A country's national strength cannot be measured by firearms alone. Firearms can also be developed in many aspects. The transformation of firearms and the use of firearms. This is what the Tang Dynasty is doing now."

"Disciple knows."

"It's getting late, go to bed early." Gu Qing comforted.

Li Xiang obediently left the study room, Fan Jian came to Gu Qing and said, "It is said that the young master made money in the academy today."

"Is this kid really making money?" Gu Qing was also a little surprised.

Fan Jian explained, "The little master also used a lottery idea, earned 30 cents and paid out seven sets of pen, ink, paper and inkstone. It seemed that he had lost money, but the account required by the Bishi, paper and inkstone was recorded on the owner of the house."

Gu Qing's mouth twitched unconsciously, "This brat actually used the ideas I used to tell him stories to make money, and even put the account on his head."

Fan Jian smiled at the book, "The little master lost seven sets of pens, ink, paper and inkstones, and it seems that this sale is a loss."

"He won't suffer any loss. It seems that this kid is losing money now. Please ask someone to keep an eye on him. I'm afraid he will make a big noise." Gu Qing whispered.

Fan Jian nodded slightly, "There is another news that the current queen Su has moved to Ganye Temple."

"Does Li Xiang know?"

"It seems that I don't know, and I don't seem to want too many people to know." Fan Jian replied.

"Is there any news about Li Ran?"

"Mrs. I plan to see Li Ran in a few days. Now it seems that Li Ran has no action. The money house is about to open. My wife plans to go and greet the head of the Li Ran family in Zhao County after the money house is settled." Fan Jian glanced at Gu Qing and said, "The factory is in good condition now. I have made a bus and are still trying it out."

Gu Qing calculated the day, "It's time for the ships in the East China Sea to come back."

"There should be news in the past few days." Fan Jian replied.

The rising sun rose from the coast, and Xue Ji led his fleet to the ocean for seven days and finally saw the coastline.

"It's coming!" Xue Ji shouted loudly.

The people behind the deck also passed messages to each other. For a moment, more than ten large ships in the rear were all Yang Manfan and headed towards the shore at full speed.

Yan Liben also stood on the coast and saw the fleet in the distance. He took out the telescope brought by Gu Qing to see the flag on the sails and said loudly, "Prepare to pick up the ship!"

"Catch the boat!" The entire port also began to become busy.

In less than half an hour, Xue Ji landed on the long-lost land.

"Thank you for half a year." Yan Liben patted Xue Ji's shoulder and said, "It's good if you come back safely."

"I'm finally back." Xue Ji stepped on the land under his feet, "I feel at ease when I stand here."

All the staff at the port were arranged to receive ships. The bulky ships would change their channel and go south along the ocean current and head into the Haikou in Jiangdong, all the way into the inland, and go along the waterway to Chang'an.

Xue Ji noticed an iron monster on the port, "This is..."

"This is an iron ship." Yan Liben said, "If this big iron lump can go into the sea, voyage will no longer be a dream."

"Can iron build a ship?" Xue Ji was also surprised, "I'm afraid that the sails can't be carried."

Yan Liben also shook his head, "This is indeed difficult. Not only is there too many difficulties in building it, but how to make the iron float on the sea is even more difficult. A few days ago, His Highness King Jin wrote to him that he already had a way to make me patient. However, this iron ship is not driven by sails but by something called an engine. It was also proposed by Gu Qing. If we have such an iron ship, we will not have to rely on the wind in the future. We can go wherever the ocean is so big."

Xue Ji nodded. It was indeed much better if there was an iron ship on the sea. If the wooden ship encountered great storms on the sea, the whole ship would be shaky.

Yan Liben continued, "The letter from His Highness King Jin also said that we should go to the South China Sea first to find an island. I had already sent a ship south three days ago."

"Are you going to open up the South China Sea in such a hurry?" Xue Ji was puzzled.

"Now our sea ships are closely related to the war situation in the West. The court hopes that we can grasp the coastline of the South China Sea as soon as possible. This time, we will rely on this iron ship to take over Tianzhu. Your Highness King Jin has been studying everywhere. You will rest for two days and then go back to Chang'an. You have already prepared a banquet for you, wash it well, eat and drink. Your Highness King Jin doesn't want to see your sloppy appearance."

Xue Ji glanced at his embarrassed clothes. His life was really hard at sea, and he had not taken a shower for several days. "I feel uncomfortable now when you say that."

Many civilians who returned to the shore vomited on the spot, but none of them had a frustration on their faces. For them, they were very proud to see so many foods that ordinary people had seen in their lifetime. Many civilians who returned to the shore saw that the port now changed a lot more than when they left. Not only did the place become bigger, but there were also several more giants.

Yan Liben ordered, "Hurry up and whip the news to His Highness King Jin. The sea ship has returned. I will notify His Highness King Wu in the Eastern Wu and the various waterways at the Central Plains to prepare for clearing the waterways. Seventeen large ships will return to Chang'an."
Chapter completed!