"Everyone is quiet, we invited Lin Feng, a famous professor of the Nanhai Branch, to give a lecture in our school today, and I hope that during the lecture later, everyone can abide by the classroom order and listen quietly."

At two o'clock, Cao Wenyan came to the front desk and made a prologue speech for the open class.

"Next, we welcome Professor Lin to the stage!"

Bang Bang Bang ......

The applause was thunderous, like firecrackers, and detonated throughout the auditorium.

Zhang Xiaojiang applauded, and at the same time his face turned red with excitement. He stared intently at the direction of the entrance and exit of the backstage, wanting to see the true face of his idol for the first time.

But the moment Lin Feng walked out of the backstage, Zhang Xiaojiang was instantly stunned, and his mind was like being struck by lightning.

"He, it's him, he's Professor Lin....."

Similarly, all the students in the audience were shocked the moment they saw Lin Feng appear.

They thought that Lin Feng was an old man of seventy or eighty years old, but they didn't expect that he would be so young.

It's amazing to be a professor at such a young age.

Lin Feng stood in front of the microphone and glanced at the entire auditorium, there were a lot of people, not only were the seats full, but even there were many students standing in the aisles.

Looking at this scale, it is estimated that there are more than 2,000 people.

Everyone is so enthusiastic? It won't be Cao Wenyan who deliberately arranged someone to support the show.

But none of this matters, Lin Feng cleared his throat and made a joke:

"Maybe many of my classmates think I'm a bad old man, I'm sorry to disappoint everyone."

"It's an honor to come to Mecha University to tell you something about mecha, on this occasion, I don't think it's appropriate to have too esoteric theories, so today I'm going to talk about three aspects."

"One, the definition of a mecha, two, the advantages and disadvantages of a mecha, and three, the prospects of a mecha."

"First, let's talk about the definition of a mecha."

"As students of Mecha University, we should first figure out what Mecha is, what is the meaning of Mecha, the origin of Mecha and the history of Mecha."

"The definition of a mecha, literally, is the armor made of a machine, referred to as a mecha, which is named according to the concept of consciousness. In fact, the word mecha is a foreign product, and it does not have such a deep meaning, but one thing is correct, mecha is indeed inseparable from machines. ”

"Regarding the history of mechas, I think it can be divided into three stages."

"Tricks, machines, mechs."

"In ancient times, there was the art of the mechanism, which is the prototype of the machine, but it cannot be called a machine, because the mechanism has no power of its own, it is all borrowed force, borrowed from manpower, material resources and the power of nature."

"It wasn't until the invention of the steam engine that the power was installed for the art of mechanism, and the heart was there, that the machine evolved into a machine."

"The mecha is a giant machine developed on the basis of a machine for fighting monsters."

........

The origin and history of the mecha are probably understood by the students who are doing it, and Lin Feng told it just to pave the way and deepen the impression.

He focused on the second and third points.

"Second, I'll talk about the advantages and disadvantages of mechas."

"Every thing, every person, every thing, there is no perfect, and the same is true for mechas, mechas have advantages and disadvantages."

"Mecha is an efficient and timely conversion tool, they can quickly convert chemical energy into physical kinetic energy."

"Mecha is a rigorous and comprehensive science, and because of this, it intuitively reflects the biggest shortcoming of a science - no explosive power."

"For an average person, the weight limit of the body is about twice the body weight, for example, a person who weighs 120 kilograms has a maximum weight of 240 kilograms. But this is only the conventional limit, the real limit, it is unimaginable.

A few years ago, there was a news that in an earthquake in a certain place, in order to prevent the floor slab from hitting her child, the mother used her body to support the floor slab weighing several tons, which completely broke the concept of conventional limits, and it should be called explosive force.

People have explosive power, if the usual strength is only 70, then the explosion can reach 100 or even more than a hundred. However, the mecha does not have explosive power, and the strength parameter is 100, so on the basis of not changing the mecha parts, this parameter will always be fixed at 100. ”

"However, this disadvantage can also be seen as an advantage, because of this old-fashioned parameter, the combat becomes more formulaic and the variables are greatly reduced............."

In this paragraph, Lin Feng expounded on the major advantages and disadvantages of mechas, and spoke in great detail.

If these students want to make achievements in the mecha industry in the future, they must understand these things.

After answering a few students' questions, more than an hour had passed since the open class, and then Lin Feng moved on to the next link.

"Thank you for your questions, so the advantages and disadvantages of mecha will be talked about here first, and below, I will focus on the prospects of mecha."

"What are the prospects for mechs? What does the future hold for mechs? If you want to understand the future of mechas, you must have a certain understanding of the performance of future mechas. ”

"Performance directly determines the prospect."

"Performance not only includes the size and combat power of the mecha, but also includes the various functions of the mecha."

"Some people think that the bigger the mecha, the stronger it must be. Although this view is contrary to the actual situation, I personally uphold this view. ”

"However, with the current level of science, it is difficult to achieve the construction of mechs above 150 meters. There are many reasons for this, but I will briefly list a few. ”

"The first point, the driver's nerve strength requirements, if you make a 150-meter-high mecha, it is initially estimated that the nerve strength value of the two drivers must reach about 700 to drive, and the current nerve strength value of the top driver is only 500, which is a large numerical gap. Therefore, the height of the mecha is limited in this level.

It may be possible to improve the driver's nerve strength in the future through other methods such as drugs, but at present, this is not possible at all. ”

"The second point, the mode of transportation of the mecha. The height of the mecha is more than 150 meters, and the weight usually exceeds 10,000 tons, which is very difficult to transport.

In the past few years, the mecha of the Pacific Rim Defense Organization was tens of thousands of tons, but it has been proved that the transportation speed is extremely slow through the transportation mode of cargo ships and train wagons, and after the transportation is in place, it must be reassembled, and it is difficult to achieve combat against monsters in the first time.

Some people think that it can be lifted by transport aircraft, and the largest transport aircraft at present is the Y-20 transport aircraft, which can lift 1,500 tons of cargo. A 10,000-ton mecha can be lifted by eight transport planes.

However, the lifting of the aircraft is greatly affected by the weather. Monsters invade, but they are not affected by the weather. ”

Third, this 10,000-ton mecha has a lot of damage to buildings, such as damage to the road surface.

For example, a 10,000-ton mecha has a pressure of 100 million N on the road surface when it walks, while the ultimate pressure that an ordinary urban road surface can withstand is only 1 million N, which is equivalent to the gravity of the mecha, which has exceeded the pressure limit of the road surface by 100 times.

Use this mecha and monsters to fight in the city, and you don't need monsters to attack, and the mecha has already begun to destroy the city when it walks.

"So!" Lin Feng said three reasons in one breath before throwing out his own opinions.

"Personally, I think that the mecha of the future must have the ability to fly."