"That's not right! This ...... It is impossible for an airplane to be modeled after this thing!" Jin Ling'er said firmly. Pen Fun Pavilion wWw. ｂiquge。 Although Jin Ling'er doesn't understand why this so-called paper airplane can fly so far with a light throw. But Jin Ling'er knew that the plane made purely of metal would never replicate the flight method of a paper airplane!

At least, no one in the crowd could pick up the plane and throw it out like a paper airplane!

The same doubts also exist in Jin Cheng's heart, so although Jin Cheng did not shout and question He Wei like Jin Ling'er at this time, he also cast a puzzled look like He Wei.

"Well, Miss Jin is right, the inspiration for the creation of the airplane is indeed not from paper airplanes. In fact, the reason why paper airplanes are called paper airplanes is actually because they are folded in the shape of airplanes. He Wei explained with a smile, "However, what I want to talk about is not the question of who has the two of them first, but to say that the relationship between the two of them is the same as Kong Ming lantern and hot air balloon, the principle of flight is the same, and you can see the big from the small." ”

"The principle of flight is the same?" He Wei's explanation not only did not explain the confusion in Jin Ling'er's heart, but made the confusion in Jin Ling'er's heart even more. What are the similarities between the paper airplane and the iron airplane? Is it really necessary for someone to carry the iron airplane and throw it out?

That's more than 46,000 pounds! Even if you really gather everyone's strength and throw it out, it will always fall, right? What should you do when it falls? Then find someone else to throw it? Why do you make it? Wouldn't it just be enough to throw it at someone? It saves time and trouble!

"Yes! The principle of flight is the same. He Wei continued to explain, "Please see, the wings of that paper airplane are very similar to this iron airplane? Compared to the fuselage, they are particularly wide and long. ”

"Yes, that's good. It looks like a bird's wings. Huh......? The reason why the plane can fly in the air is actually modeled after the way a bird flies?" Jin Cheng said suddenly.

"It's related, but it's not exactly imitating birds. He Wei nodded and said, "Senior Jin and Miss Jin are both cultivators, and they should all know that between heaven and earth, in places that we can't see, there is a lot of aura. ”

"Nonsense! This kind of thing is something that everyone knows is good or not!" Jin Ling'er pouted and grabbed Bai He worried.

He Wei Wen Yan smiled slightly, but he was not angry, and continued: "Does Miss Jin know that in addition to aura, there are actually many other qi between heaven and earth?"

"What kind of qi?" As Jin Ling'er said, on the Zhong Ling Continent, almost everyone knows about the existence of spiritual energy. But the existence of qi other than aura is rarely cared about!

"A lot! oxygen, nitrogen, carbon dioxide...... Uh, blah, blah, blah blah, all these gases are mixed together, and we can just call them air. He Wei said.

In order to more vividly illustrate that there are indeed many kinds of gases in this world, He Wei listed some of the names of various gases learned in the original world. I thought that this would be conducive to better explaining the problem.

But He Wei had just said carbon dioxide when he found that Jin Cheng and Jin Ling'er in front of him were already confused. Therefore, He Wei had to directly replace the rest of the gas with "wait, wait, wait", and then directly give the general term "air".

"Air?What's that?You mean aura, right?" Jin Ling'er's eyebrows were about to twist into a ball, and it was obvious that what He Wei said was a little too profound for her.

He Wei shook his head and said, "Reiki is aura, and air is air." Although there are many things in common between the two, such as being both transparent, both are ubiquitous. However, there is a clear difference. ”

"What's the difference?" asked Jin Ling'er.

"Uh...... Here's a simple example!" He Wei thought for a moment and continued, "Without aura, people can't practice at most, and they can't become cultivators. But he can still run and jump, eat and drink, and live a very happy life. But if there is no air, people will not be able to survive!"

"Whew, it's the same as the truth!Can't survive, doesn't that mean that if there is no air, everyone will have to die?!" Jin Ling'er said disdainfully. Obviously, Jin Ling'er didn't believe in He Wei's exaggerated statement.

"It's true!" He Wei said, "Human beings need to breathe all the time, and through breathing, they get oxygen from the air, and rely on this oxygen to complete the oxidation reaction in the body, providing enough capacity to sustain life." A normal adult will have a feeling of suffocation as long as he cannot breathe normally for more than two minutes, shock will occur after more than five minutes, and if it is more than 15 minutes, he will basically die due to insufficient oxygen supply to the brain. ”

Although Jin Ling'er couldn't understand the words he said, such as oxygen, oxidation reaction, and brain death. But the words breathing, suffocation, and death, Jin Ling'er understood. Therefore, after thinking for a while, Jin Ling'er asked softly, "The person who fell into the water and drowned?"

"Well, people who drown are the most typical people who die of lack of oxygen. This is because when people are in the water, they cannot breathe to get enough oxygen. He Wei said.

"Hmm...... Oxygen, air...... Oxygen ......" Jin Ling'er frowned and muttered things like oxygen and air over and over again, then raised her head and said to He Wei, "You go on." ”

When He Wei saw Jin Ling'er behaving like this, he knew that she had somewhat understood. So he continued: "Air is everywhere. Although it is very light, in some cases, a large amount of air moving at high speed at the same time can generate extremely considerable force. For example......

"Wind!" Before He Wei's words were finished, Jin Cheng suddenly interjected. And Jin Cheng has obviously sorted out the middle joint from He Wei's words, so he just said the key point as soon as he opened his mouth.

"Yes, it's the wind!" said Ho, "but the wind is but one of the most representative forms of power provided by air. There are many others, and holding up the plane is one of them!"

"Hold the plane up?" you mean...... Upward wind?" Jin Ling'er's brows furrowed again, obviously she was finally able to clear the air or something, and at this time she fell into a new confusion again.

He Wei shook his head with a smile and asked, "Have you ever played water rafting?"