Wang Qinian was surprised and said, "You are worthy of being a master of the spirit department. You can guess it's not bad at all, it's a lifeboat."

"What's the use of a lifeboat? You are all magic masters who can get here. When you encounter danger, you will escape with a floating technique. There is no need for a lifeboat." Jessica said.

"Yes, you said it well. But you overlooked one thing. People buy it not because it can save lives, but because it can show it. It is a symbol of identity. The reason why the Sky City does not have a lifeboat should not be called a lifeboat, but a private yacht. Its speed is much faster than the Sky City. It can be built in three levels. One is the simple type, very simple, and can carry two to three people. The function is to be able to travel between the Sky City and the ground. Once a magician or alchemist starts, it can use magic cores or magic crystals as power; the other is the practical type, which can carry five to ten people, and can also transport goods, mainly used as a magic merchant to transport goods; the other is the luxury type, which is as luxurious as possible on the basis of practical type. Do you think this business can be done?" Wang Qinian said.

"You seem to make sense. What are you going to do? I remember that your bicycle makes a lot of money. If this thing works better, it might set off a new trend among magicians. Unfortunately, magic is still too far from ordinary people and cannot be popularized by ordinary people." Jessica sighed.

"Put wings to ordinary people like me." Xiaoshuang shouted.

Wang Qinian smiled: "Xiaoshuang, it's useless. You think ordinary people have never thought that human weight and wing muscles are not suitable for flying like birds, but balloons are the only way for one person."

"You mean flying with balloons, that method is good. It's just too slow." Xiaoshuang said.

"The hydrogen balloon is too dangerous, the hot balloon is good, go back and try it." Wang Qinian pondered.

"What is a hot air balloon?" Xiaoshuang asked. Not only Xiaoshuang, but also Jessica and Jenny looked at Wang Qinian.

Wang Qinian said: "It is a balloon that uses the principle of hot air. I will demonstrate it to you when I go back."

They returned to Holin Bridge. Xiaoshuang was wrapped around Wang Qinian and wanted to see the hot air balloon. Wang Qinian smiled and made a bright lantern. Xiaoshuang saw Wang Qinian lit the lights. The light really floated up. Jessica was also watching from the side, and Xiaoshuang even flapped her wings and flew with it for a distance. She opened her mouth and blew the lights. The lights fell down slowly. Although some students saw it, they thought that the teacher used magic and did not take it seriously.

Xiaoshuang held the Kongming lantern. The Kongming lantern was much more popular than hers. Fortunately, it was lighter, so Xiaoshuang could hold the Kongming lantern and flew back: "Wang, this thing is more fun. I've gone to the forest."

After saying that, he flew towards the distant forest with Kongming lanterns holding up the Kongming lantern. Wang Qinian shook his head and Jessica suddenly spoke: "What is this principle? The air is expanded, you can study it. By the way, Wang, can you study this issue?"

"Yes, the air is heated and expanded, so it is possible to study it. Just so happen that you are not studying pea experiments. That experiment took a long time. Why not start another project and study aerothermodynamics?" Wang Qinian said casually.

It’s not that he doesn’t want to study, he’s already studying electrochemistry, he doesn’t want to attract more attention, there are too many things to study, so it’s better to let Jessica study it.

"I invite you to join." Jessica's eyes turned, and she knew that Wang Qinian must know something, "As a main member, you have to pull someone."

"Jenny, she should also help you. In research, if you get feedback from heaven and earth, it is rare for her. It depends on her understanding." Wang Qinian said that he had basically figured out the essence of the feedback from heaven and earth. To put it bluntly, it was just feedback from the collective unconscious human beings. But why this mechanism exists? Wang Qinian was very curious. Is magic really something similar to illusion, but why it is like this? Wang Qinian couldn't understand.

"I was going to pull Emma," Jessica said.

Wang Qinian said: "I happened to be looking for her. She is from the Magic Item Management Department. I want to discuss the yacht with her and want her to mobilize students to make samples. It is very suitable for her to do this. I took out the drawings. If the profit is too great, I want to trade with the school to exchange this industry for the pass of the Legend Gate."

"You're on the verge of legend?" Jessica asked in surprise.

"No, I'm at most a little higher than the middle level of the Magician. However, be prepared first, otherwise it will be too late when it rains." Wang Qinian said.

"It seems that I need to prepare too. Although I am a senior mage, it seems that the magician is only a matter of one or two years. There are still a series of conditions for the advanced legendary magic array, which is difficult for me to get together, especially if I need the help of the legendary mage." Jessica said.

"You are the beautiful girl of heaven, I believe you will succeed." Wang Qinian encouraged.

Wang Qinian explained that Jessica also put forward her opinions on some preparations for gas thermodynamic experiments. After discussing, Jessica went to school to apply for a laboratory. She did not do it in her house because her house had been transformed into a genetic experiment. Wang Qinian did not say that he would do it in his house, and his laboratory was also useful, so she went to school to apply.

Wang Qinian went to the Magic Item Management Department to discuss the air yacht with Emma and gave her the drawings. Air yachts are not new, and there is no technical problem with the use of the air array, but there has been no demand at any time, so it is rare for a magician to do these things.

However, Wang Qinian seized this opportunity this time and carried out this plan with the City of Sky as the background, making it look promising. Emma looked at the drawings and said with a smile: "This is not difficult. I will organize students to do it, and strive to complete three spaceships before the City of Sky. When the City of Sky is launched, our spaceship will also be launched to promote our spaceship."

Wang Qinian nodded: "As long as the luxury airboat is flying, the things inside will be determined according to the customer's requirements. I want to install some magical items in it as a means of defense."

"Leave this matter to me, and I just took the opportunity to digest the accumulated magical items." Emma laughed, and Wang Qinian laughed loudly. Emma has the qualities of a profiteer.

After these things were completed, Wang Qinian's paper was almost the same. He summarized the electrolysis of water, figured out the composition of water, and the ratio of hydrogen and oxygen atoms was 2 to 1, discovered some alchemy elements, summarized the properties of hydrogen and oxygen, proposed a series of knowledge, and other knowledge. The paper "Water under the Action of Electrical Current" was also completed and sent to the editorial department of "Magic". At the same time, research on gas expansion and other aspects was also carried out with Jessica, but we encountered problems from the beginning.

What is heat? This question is affected by phlogistin. People think it is a separate element, especially the four internal properties of hot, hot, dry and wet in the old element theory, which deeply affects Jessica and thinks that heat is also an independent existence. Wang Qinian refuted this view, saying that temperature and heat are just external manifestations of particle movement speed, and there is no microscopic heat at all.

The two were arguing, but Jenny was at a loss. She felt that what they said made sense. Teacher Jessica gave an example that when you approach the stove, you will feel that the heat wave is rushing. The heat is real. Wang Qinian explained that it was caused by the movement of air molecules and used magic to create a thin air area. Sure enough, the heat wave is much smaller, and there are many similar problems. In the end, the two reached a compromise. Regardless of whether the heat exists or not, set the temperature first.

The two encountered problems again. One person used the ice-water mixture to zero degrees and the water boiled to one hundred degrees. Wang Qinian simply stopped moving at zero degrees with particles, and the particles were moving forever. This was still a hypothesis at that time. Although many evidence pointed to it, Jessica thought that using a hypothesis as a basis would not be rigorous in attitude.

Fortunately, Wang Qinian proved that the two temperature systems are the same. Wang Qinian called his temperature system absolute temperature, and Jessica's temperature relative temperature, which was smoother afterwards.

While they were doing the experiment, the school started, and Wang Qinian and Jessica also stopped the experiment. All teachers and students had dinner in the cafeteria, and the long dining table was filled with turkey, steak, sausage and other food. Alterando held up a cup. The cup was not wine, but a drink without alcohol, saying blessings.

After the meal, Wang Qinian rarely ate in the cafeteria. He watched the flowing dishes appear on the dining table, and fantasy species were hidden in it, constantly transmitting various dishes. Most of the students could not see them, especially freshmen. He only saw plates of dishes appear out of thin air, sighing at the magic of magic, but Wang Qinian could see them.

After the banquet, Wang Qinian returned to her residence. Xiaoshuang did not go there to have a meal. The food there was not her appetite. She sat alone at the dining table, in a daze. Wang Qinian saw her and said, "How are you doing? Are you unhappy?"

She shook her head and said, "I miss the Black Forest a little."

Wang Qinian has always been very curious about Xiaoshuang's origin and did not know where she came from. After hearing what she said, he laughed and said, "If you want to think about the Black Forest, just go back. You should use the method of the last time to project it back. After all, it is thousands of miles away from the Black Forest. What's strange is that somehow Nobi and the others seem to have not increased much in their divine power."

"King, I'm about to tell you that I feel a lot of divine power, and I seem to have a sense of responsibility in my heart. I will use some divine magic unknowingly. Now someone is praying to you." Xiaoshuang said.

When Wang Qinian heard this, he was stunned. Then he looked inward and observed himself and Xiaoshuang from the perspective of his soul. He found that his power of faith was actually concentrated on Xiaoshuang, and he had only passed by his side for a while.

What's going on? (To be continued...)
Chapter completed!