Since the day when long Tianci recognized Bai Jin as his son, long Tianci's attitude towards Bai Jin has changed 180 degrees, and the title has become jin'er. Because Bai Jin's original strength is less than one-fifth after being humanized, his strength has greatly decreased, and he has lost his physical advantage as a Linghui fox. If Bai Jin wants to become strong again, he can only walk step by step in a down-to-earth manner, Without orthodox training, it is impossible for him to increase his strength by himself!

Now Bai Jin is also his own son. Of course, long Tianci will not be stingy. Because Bai Jin is fast, long Tianci taught Bai Jin the Gu flea skill and the flying sword skill. Bai Jin was flattered about this.

Long Tianci and Bai Jindu are happy to stay here. They both have something to do, so they don't have to hurry. But they are not in a hurry, but Pisan and others can't. They haven't heard from each other at sea for more than half a year. Outsiders may think they are all dead. Pisan's family still has a wife and children. Jiugong and those sailors are also worried about their families, So they found longtianci together and discussed when to leave the heart of the dark sea.

To tell you the truth, this trip to the heart of the dark sea was just a coincidence, coupled with people's curiosity about the dark sea, so they came all the way to the heart of the dark sea. In fact, the so-called treasure was just spread falsely and did not exist at all. The three charts were only made by tassels when they missed their hometown, and there was no meaning to stay on this island, So long Tianci promised that everyone would leave as soon as possible.

Now that he has decided to leave, long Tianci of course wants to say hello to Liu Su. Although they are thousands of years younger, they are usually called brothers. Liu Su likes long Tianci's intelligence very much, so he has spent almost all his money to teach each other during this period. As long as he is interested in learning, he will patiently teach. This guy who is also a teacher and a friend has deeper and deeper feelings during this period, This is going to be separated suddenly. They are really reluctant to give up!

Finally, the tassel was happy. When he came back here, he was just tired of the struggle outside. What's more, he didn't trust the six armed demon God. Now the six armed demon God doesn't exist. He has lived in seclusion here for hundreds of years. There have been great changes outside for hundreds of years, so he decided to go out with long Tianci and others to wander around the world for some time, If the destiny of killing the world given by the Dragon God cannot be changed, then the world will not be long. Why not go around it again in the last time of the world?

Hearing that Liusu promised to leave with him, long Tianci was very excited. He had too many things he wanted to learn from Liusu. If Liusu could go with himself, he could continue to learn from Liusu!

The tassel is a man who works hard and fast. He said that he would never be sloppy when he left. The tassel also has a space ring. When he left, he packed his home. It's good to save even packing!

However, how to leave the heart of the dark sea still made long Tianci and others worry for a long time. After all, the ship has been destroyed. If they want to go, they can only build a ship by themselves!

Hearing that long Tianci and others said they were going to build a boat, the tassel covered his stomach and laughed. He almost didn't laugh. Long Tianci and others were laughing all over. I don't know why the tassel laughed so much? Finally, long Tianci couldn't help asking!

The tassel explained with a strong smile. According to the words of the tassel, long Tianci and others are lack of heart. There are four seas around here. The tassel can come back by boat. When they get here, the tassel doesn't go out again. Then the ship must still be on the island. As long as they take the ship, they can leave anytime they want. Where can it be used to make a ship so troublesome? I can't figure out such a simple truth. Liusu thinks that Longtai really had a few tendons in their head that time!

Although they were laughed at by tassels, long Tianci and others didn't mind very much. Instead, they were very excited. Originally, they thought shipbuilding would take a lot of time, but if tassels had a boat, they would save much trouble!

Following the tassels, the people came to the north coast of the heart of the dark sea. Compared with the coast where they landed, it was much better here, and even there was a wharf. The tassels told them that it was a wharf built by the silk devil Empire, and there was even a city around the wharf. Unfortunately, thousands of years later, the city had long disappeared, leaving only some ruins. Fortunately, the wharf can still be used!

Tassels don't want to waste time. When they came to the dock, they directly took their ship out of the space ring. As soon as the ship came out, long Tianci and others turned their eyes. To tell the truth, the ship is simple enough. The captain is only 15 meters, seven or eight meters wide, there is no cargo warehouse, only one cabin, and there are no defense equipment on the deck. The deck is empty, The ship has no sails and oars. It is bare as a whole. It doesn't look like it can sail!

Of course, the tassel saw the doubts of the people, but he didn't go to nonsense to explain. He directly called the people on board. Then he took Jiu Gong to the wheelhouse and let the sailors enter the cabin. Once they entered the cabin, they found that the cabin of the ship was two layers inside and outside. The outer layer seemed to be a living area, with tables, beds and carpets on the ground, As for the back floor, I don't know what's inside because the door is closed.

Fortunately, before long Tianci and others asked about the tassels, he took the people into the second floor. In the second floor, there was a large machine. The shape of the machine was like a boiler, with an inlet for adding fuel. It was full of various pressure gauges and instruments. I didn't know what it was for!

Without explanation, tassels directly took out some dark brown liquid from the space ring and introduced it into the instrument, then added a lot of firewood, and then tassels ignited the liquid and firewood inside.

When the flame burned, the instrument on the instrument began to change rapidly, and the tassel pulled down a huge lever switch on the side of the instrument.

At the moment when the lever was pulled down, there was a splashing sound from the stern, which was very harsh. At the same time, there was a shout from Jiugong left in the wheelhouse: "shit! The ship moved by itself! It's amazing!"

Hearing the voice from the microphone, everyone, including long Tianci, showed a puzzled expression. Then he turned his head and looked at the tassel. The tassel smiled with a fart on his face and answered, "Hey, isn't it amazing? You can't understand this technology. I tell you, this ship is called a pneumatic ship!"

"Pneumatic boat? What do you mean?" long Tianci asked with a puzzled face. The answer of tassel was equivalent to no answer.

"Let me explain to you. If you blow air into the water, the air will generate thrust. The greater the air pressure, the greater the thrust. Conventional sailboats or paddles are too limited by external forces. The wind direction, wind speed and stability limit the speed and direction of the sailboat, while rowing with paddles has physical limitations. My ship driven by air pressure will not have these restrictions, which is not only convenient , the speed is still very fast! "Said the tassel with a smile!

"You say so, I can understand that discharging enough air pressure at the stern can push the ship to sail, but where does the air pressure come from? Is it made by this machine?" long Tianci nodded, but the doubt on his face did not disappear, and continued to ask!

"Are you stupid? I've taught you for nothing these days. What's this? A water boiler. After the water is boiled, the steam will produce huge pressure. Then, the speed of the ship can be controlled by adjusting the output through the air pressure valve. In the process of pushing the ship forward by air pressure, sea water will be pushed into the boiler to keep a fixed amount of water in the boiler, so it's impossible to add water manually Cheng is saved. We just need to remember to add firewood to the boiler from time to time! "The tassel glared at longtianci angrily, and then explained!