"This crystal is called the spirit core, which is a crystal extracted from the body of the monster, and in this crystal it contains extremely powerful energy, my idea is to use the spirit core as a power source, and then use the characteristics of the wind crystal to make the airship have super fast flight speed. If the driving strength is strong enough, such as high-level or something, then it can achieve the effect I expected. ”

When it comes to her own invention, Zhan'er seems to be a different person. She was shy because of Qin Feng's questioning a second ago, but at this time, she seemed to have become a master full of confidence.

Qin Feng looked at Zhan'er with admiration, Zhan'er's idea was similar to that of an aircraft in the human realm, except that the fuel was replaced with a spirit core unique to the immortal realm.

Speaking of which, it is relatively easier to build an aircraft in the Immortal Realm, because with the spirit core as the power output, it can completely throw away the most complex and difficult engine problems in aircraft manufacturing. In Qin Feng's opinion, it was almost impossible to research an engine in the Immortal Realm, not to mention anything else, even if it was the materials used to make the engine, the Immortal Realm might not be able to smelt it.

But the immortal realm also has things that the human world does not have, such as spirit cores and various crystals, which can completely replace some unique materials in the human world.

Through Zhan'er's series of complex ideas, it is indeed possible to achieve the effect that Zhan'er wants, the airship or something, it is unheard of and unheard of for the immortal realm, if the research is successful, Zhan'er will inevitably become another pioneer of the immortal realm.

"But these are all assumptions, and it's hard to actually do it. If nothing else, just sorting out the connections between the hedrons gives me a headache. ”

Zhan'er turned back into the shy girl again, and looked quite embarrassed in her eyes.

Qin Feng smiled slightly and said, "Everything is difficult at the beginning, not to mention that you are doing a precedent feat, if everything goes smoothly, wouldn't it be a loss of fun?"

"Well, you're right, there's a challenge to be fun. Zhan'er clenched her fists, as if she was cheering for herself.

"I don't know much about the composition of your Immortal Realm Horcruxes, and I don't know anything about the spar connection, but I think there's a huge problem with the construction of your airship. ”

"What's the problem, talk about it quickly!"

Zhan'er became excited, she didn't mind Qin Feng saying that there was a problem with her research at all, on the contrary, she wished that Qin Feng pointed out the problem, so that she could find the problem and then correct the problem.

Qin Feng pointed to the square box created by Zhan'er, and sneered: "This prototype you created is too unreasonable, such a design can indeed ensure the internal space, but have you ever considered the problem of wind resistance? According to your assumptions, this big guy will have unprecedented speed, have you considered how huge the wind resistance will be at such a fast speed?"

"Wind resistance?" Zhan'er looked puzzled, "What is wind resistance?"

Qin Feng smiled awkwardly, it was reasonable for Zhan'er to not understand the professional term wind resistance. After all, in the Immortal Realm, absolutely no one had mentioned this concept before.

"Wind resistance is the resistance of the wind, you see. Qin Feng picked up a piece of paper and waved it slowly, then picked up the paper and danced quickly, "The resistance that this piece of paper receives in the process of flying in the air is wind resistance, you also saw it just now, if the speed is slower, the resistance is much smaller, and the speed is faster, is the paper deformed? If this airship of yours is made into a boxy shape, the wind resistance it suffers is unimaginable." ”

Zhan'er nodded thoughtfully and said, "I understand what you mean, just like when we walk, if we walk slowly, we can't feel the presence of the wind, but if we run, we will feel the wind blowing on our face, right?"

"Yes, that's the truth, the faster the speed, the greater the wind resistance, and the larger the area, the greater the wind resistance, so the shape of your airship is not logical, it should be designed like this. ”

Qin Feng found a special pen and quickly sketched the outline of a fighter plane on the paper. On Earth, the fastest fighter planes can fly at speeds of up to 3,000 kilometers per hour, and it only takes more than 10 hours for such fighters to circle the earth. And the Immortal Realm is at least ten times larger than the earth, that is to say, the airship developed by Zhan'er must reach a speed of at least 10,000 kilometers per hour in order to achieve Zhan'er's expectations.

How much wind resistance would be encountered at a speed of 10,000 kilometers per hour, Qin Feng couldn't imagine it. Although Zhan'er's airship could not reach the fastest speed of the rocket, it was also faster than the first acceleration of the rocket, so Qin Feng outlined the outline of the fighter plane extremely flat, just to minimize the drag coefficient.

"Is this your airship in the human world, it looks so cool!" Zhan'er didn't let go of the sketch as if she had found a treasure, and her eyes were deeply attracted by the outline of the fighter.

Although Zhan'er hadn't fully understood the principle yet, she believed that the problem that Qin Feng pointed out to her did exist. Qin Feng's ability to sketch out the sketch so easily showed that Qin Feng knew a lot about airships, and she especially needed more guidance from Qin Feng!

"That's okay, I'll start transforming the appearance tomorrow, Teacher Ji Xuan really helped me a lot this time, and found a master for me. ”

"Don't, what kind of master am I, you are the real master, the master of infinite creativity. ”

How dare Qin Feng pretend to be a master, he just happens to know these things. Compared with Zhan'er, Qin Feng is a complete handicap, Zhan'er's imagination and creativity are definitely worthy of the word master.

"No, you're a master, let me worship you as a teacher, you teach me how to design an airship. ”

Zhan'er looked at Qin Feng expectantly, her big eyes full of sincerity. She wasn't joking at all, but seriously wanted to worship Qin Feng as a teacher.

Everything in Qin Feng's mind that came from another plane was a new existence to Zhan'er, and she urgently needed more fresh knowledge to make up for herself, so that she could further improve herself.

Qin Feng thought about it, and finally rejected Zhan'er, "I can't accept you as an apprentice, I don't have that qualification." But we can be friends, why don't you join my family, it just so happens that Master Ji Xuan is also interested in cooperating with me, and we will create a new pattern in the immortal world together. ”

"Okay, good!" Zhan'er, who was still disappointed a second ago, suddenly cheered, she only had creation in her heart, as long as she could complete the creation and provide conditions for creation, not to mention joining Qin Feng's family, she would be happy to be a servant to Qin Feng.

"Then you are very welcome to join the funeral family, you are the only woman in our family!"

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