Lin Feng's opening was like throwing a deep water bomb, and all the students below were furious.

They looked at me, and I looked at you, and they didn't believe that the mecha could fly.

Someone raised his hand and asked: "Professor Lin, let's not talk about tens of thousands of tons of mechas for the time being. With the current technological level, it is difficult to achieve the goal of flying into the sky."

Other students agreed with this statement, how can a big guy with thousands of tons fly?

Lin Feng smiled and said, "Before answering this question, I want to ask a question first. Some students know, is the largest rocket load currently? "

Zhang Xiaojiang immediately raised his hand, and Lin Feng nodded to signal him to answer.

"Teacher Lin, the largest launch vehicle at present is the Great Wall-V5 launch vehicle, with a load capacity of 3,300 tons."

Lin Feng nodded with satisfaction, signaled Zhang Xiaojiang to sit down, and then said:

"Since we can send 3,300 tons of rockets to the sky now, why can't we send 3,300 tons of mechas to the sky?"

Everyone thought about it and it seemed that this was the reason, but they also vaguely felt something was wrong.

After a few seconds of silence, someone finally found the problem.

"Dr. Lin, the thrust of the carrier rocket is only longitudinal thrust, while the thrust of the mecha from the sky requires multi-directional thrust. In this case, if there is no flight balancer, it will affect the speed and direction of the mecha's flight, and it will also affect the actual combat effectiveness of the mecha."

This student’s problem is very realistic and grasps the key.

The Rocket really only needs one-way thrust, and its target is only one, upward, upward, accelerate, accelerate...

But the mecha can't keep going up like the rocket, breaking through the cosmic speed and rushing into outer space.

Lin Feng signaled the student to sit down and then continued to give a lecture: "First of all, the mecha flight I mentioned is just a way to use flight as a means of transportation, rather than letting the mecha fight with monsters in the air. If you want the mecha to fight with monsters in the air in reality, it is completely impossible to achieve this at this stage, and you can't even want the mecha to stay still in the air."

"Secondly, mecha flight is indeed impossible like a rocket. It must consider the kinetic energy output direction of actions such as takeoff, acceleration, deceleration, steering, landing, etc. However, this consideration has pointed us in the direction."

At this time, Lin Feng said to the students: "The take-off weight of the Y-20 transport aircraft is 3,100 tons, which is equal to the weight of some mechas. The only difference is that its size is more than five times that of the mecha."

"So in the future, when flying mechas, you need to buy in terms of volume. After all, it is impossible to use light materials such as aluminum alloy to turn the mechas into hollow foam. Such mechas will go against the original intention of the design. Letting the foam mechas fight against monsters is a destruction."

"So, the design of future flying mechas needs to combine the advantages of rockets and aircraft to create a truly capable mecha."

............

Then, Lin Feng roughly described the prospects of the mecha. Of course, this prospect is a prospect that may be realized in the near future under current science and technology, rather than an illusory one that makes people feel very sci-fi at first glance.

After four hours, Lin Feng's lips were all chapped.

Finally, amid the students' warm farewell and applause, Lin Feng left the podium.

So thirsty.

Cao Wenyan is really a real person. He said he only needed one microphone, but he only prepared one microphone and didn’t even prepare a bottle of mineral water.

In fact, after Lin Feng got off the podium, Cao Wenyan only realized when he looked at his cracked lips.

Originally, he was going to get a bottle of water for Lin Feng after he came to the stage, but as he listened, he became fascinated and forgot to send out the mineral water in his hand.

Now that the class has been finished, Cao Wenyan suddenly became worried after he reacted.

Am I so confused? I won’t offend Director Lin, will he? Will he report to General Lin?

Well, I accepted it even when I reported it. Who made me not entertained me well?

However, Director Lin is worthy of being a big boss of the defense organization and his lectures are really good.

Seeing Lin Feng walking in front of him, Cao Wenyan smiled awkwardly and handed it to the water: "Director Lin, on behalf of all the teachers and students of the school, I would like to thank you for this wonderful lecture!"

Guru, Lin Feng drank half a bottle in one sip, then waved his hand: "It's nothing, this is what I should do! Principal Cao, if nothing else, I will go back first."

"Director Lin talked for an afternoon, and it's time for dinner now. Why don't we go to the Emperor's Restaurant to have a few drinks?"

"No, no, no!" Lin Feng waved his hands repeatedly. He is now phobic about eating in restaurants. Maybe Cao Wenyan will learn from Zhao Yong and introduce himself to a wife for nothing.

So he subconsciously refused: "My company has something to do, so I won't cause trouble for Principal Cao! I'll leave first!"

"Okay, I'll give you a gift!"

.............

In the auditorium, when Lin Feng walked down the podium, entered the backstage, and changed to the executive teaching director's speech, the students' emotions were obviously much lower than before.

"After the meeting, everyone leave their seats one by one, don't be crowded..."

But at this time, Zhang Xiaojiang put his notebook on Liu Xin, left the seat in a blink of an eye, and ran towards the auditorium gate.

After running a few meters, his voice came back: "Liu Xin, help me keep it, I have something urgent to do!"

"Zhang Xiaojiang, what are you doing?"

However, before Zhang Xiaojiang answered, the person had already run to the entrance of the auditorium, and only the executive teaching director's angry voice was heard.

"That classmate, please abide by the order consciously. I haven't said that the meeting will end..."

.........

After Lin Feng said goodbye to Cao Wenyan at the school gate, he was getting up and returning to the company, but he didn't expect a student to rush out regardless of the security guard at the door.

"Teacher Lin, wait!"

"Hmm?" Lin Feng turned around, but saw Zhang Xiaojiang chasing him.

He ran to Lin Feng and gasped.

"So it's you? Do you want to ask your cousin about it?"

Zhang Xiaojiang shook his head and breathed a sigh of relief: "No, I know the consequences of my cousin, no wonder anyone. I chased him out, because I wanted to ask Teacher Lin, can I accept me as your student?"

Student? Lin Feng was slightly surprised. He really thought about teaching students, and the teaching directors were all affiliated.

However, judging from the two contacts with Zhang Xiaojiang, Lin Feng admired him in some small details.

Have ideas, have brains, are willing to study, be down-to-earth and serious, and love mechas.

It seems that it is quite good to accept such a student.

Lin Feng smiled and said, "I want to be my student? But I have high requirements for accepting students.

If you can finish all the textbooks of Mecha University and lay a solid foundation within half a year, you can come to Xiaofeng Mecha Construction Company to find me."

Half a year, dozens of textbooks, and if you want to finish all of them, it is undoubtedly more difficult for a student who has just entered college and has no knowledge accumulation than climbing to the sky.

This is also a test for Lin Feng to Zhang Xiaojiang.

But when I heard Zhang Xiaojiang's ears, the smell changed.

He believed that Lin Feng was urging him to lay a solid foundation. Only when the foundation is laid can he become a disciple.

Just like a primary school student, it is impossible to directly become a university professor. You can't let a university professor teach him the 99 multiplication table.

"Yeah!" Zhang Xiaojiang nodded seriously, "Teacher Lin, I will definitely be able to finish all the textbooks within half a year!"

Lin Feng smiled and encouraged, "Okay, if you really complete the task in half a year, I will definitely accept you as a student. Not only will you teach you how to make mechas, but you will also teach you other things.

OK, it's getting late, go back, goodbye!"
Chapter completed!