Rising: Ten Thousand Years Chapter 69: :Academic

In the laboratory, Li Chen walked to the blackboard and drew the crank connecting rod he had imagined.

Everyone intuitively saw the image of the crank connecting rod, and their hearts were even more ecstatic.

The problem of the century, solved, finally solved.

Because Xu Shenxue wanted to invite everyone to eat watermelon, Li Zhen had a flash of inspiration in the process of fetching watermelon, and ended this century-old problem. This is like a difficult problem like a moat.

Li Zhen couldn't help recalling it, he seemed to remember that someone vaguely said to him that the steam engine in ancient times had experienced too many vicissitudes, right? It's not that easy either. The steam engine appeared at first, just as a steam jet machine. The crank connecting rod appeared completely, spanning hundreds of years. After several generations of continuous improvement...

He forgot whether there was such a thing, and remembered that someone seemed to have said it. Can not remember.

Not important.

After 10,000 years, he finally solved the operation of the changing force.

Liu Jinghong suddenly frowned: "No. There is a problem, a problem that the crank connecting rod cannot solve."

Li Zhen quickly asked: "Say."

Liu Jinghong said: "We need to convert the linear motion of the steam engine into rotational force. But this crank connecting rod only solves the rotational force, but it blocks a road, that is, there is no power. "

"Huh?"

"Look, if the steam pushes the piston and the crank connecting rod, it causes the outer disc to rotate half a circle. But it still can't reset. We need to make the piston move repeatedly, and when it is pushed out, it can be retracted, so that It can reciprocate. It can be pushed out and the operation of force can be changed, but it can’t be retracted.”

Liu Jinghong pointed at the blackboard: "Because, in the airtight cylinder, it is full of internal pressure and internal energy of the air. It is constantly expanding, so there will be continuous force pushing the piston forward. The piston Through the connecting rod, pushing the outer circle can rotate half a circle. However, once it rotates half a circle, when it reaches the limit of the connecting rod, it must push the piston back. But there is continuous energy in the cylinder, isn’t it Just stuck the piston? In this way, the disc can only rotate half a circle."

After Liu Jinghong finished speaking, some students agreed deeply, while others shook their heads, knowing in their hearts that it was definitely not what Liu Jinghong said.

Li Zhen smiled: "The question you want to ask can be summed up in one sentence: the internal force output drives the piston and connecting rod, so that the disc can only rotate half a circle. However, because the internal force continues to output, And the circle will get stuck when it rotates halfway, and the continuous output force will instead become resistance? Is this what you mean?"

"Yes. Maybe I didn't explain clearly, but that's what I mean."

"Senior Liu asked a very thorough question. But he overlooked one point."

"What?"

Everyone immediately pricked up their ears.

Li Zhen pointed to the disk drawn on the blackboard and said: "However, if the design of this disk is relatively large, and its mass exceeds the thrust of the steam, then after the steam pushes the disk half a circle, the circle will The disc will generate inertial force, and the inertia will drive the disc to continue to complete the second half circle. And in the process of turning to the second half circle, the connecting rod will drive the piston to reset. Then the steam will push the piston and connecting rod out again, Push the disc to rotate again.

As the inertial force increases, the piston will work faster and the repetition rate will be faster. And the disc spins faster. The force of the piston realizes the conversion from linear motion to circular motion. The inertial force generated by the circular motion is reversed to realize the repeated motion of the piston. It's a cycle. "

"That's right!"

Liu Jinghong exclaimed and slapped his head: "I forgot, I ignored. The rotation of the disc itself will also generate inertial force."

Qin Enze took a breath: "It looks simple, but it's so complicated inside. How did you come up with it?"

"Oh, I knew just now that the disc must drive the connecting rod to reset the piston. But I just didn't know how to say it. Alas, I knew the principle just now, but I just couldn't explain it."

"Stop bragging. An afterthought?"

"I also thought of it. The disc will definitely return to drive the piston back. This is a situation where you help me and I help you, and force conversion occurs."

"Inertial force, inertial force, why did I ignore this."

“…”

Li Zhen clapped his hands: "Quick, we need to carry out physical verification immediately. Senior Liu, please calculate the cost of this model."

Liu Jinghong nodded excitedly, and immediately began to calculate the cost. After a while, he said: "We only need to process the assembly parts. I think these things are now in the top secret stage. Blacksmiths and cobblers cannot learn the whole set. The cost is not high. Expensive, only about 500 coins, but we have to assemble it ourselves."

Li Zhen nodded: "Then go to a few people, you go to the city as soon as possible, and build the organization back. It must be fast."

"Understood."

Liu Jinghong ordered seven or eight people to be with him. There are too many people to avoid mistakes.

Li Zhen instructed: "The rubber head of the piston must be selected properly. There must be no air leakage in the cylinder."

"I know, there is a shop that specializes in rubber, and I will let it be made according to the mold, and it is absolutely not bad."

"Also, the metal disc must also be of high quality. It must be round enough."

"Don't worry about it. I won't get you an oval back."

“…”

Liu Jinghong and others excitedly went to find someone to make parts~IndoMTL.com~ And Li Zhen finally let out a breath and lay down on the ground with a smile on his face. He closed his eyes and fell asleep with a smile on his face.

Been tired for too long. Been nervous for too long.

Until today, I can finally relax.

The other students in the laboratory also sat down exhausted. After more than a week of obsession, until today, I finally completely relaxed.

And some students who worked extremely hard still did not relax at this moment.

Just like Fang Hanxian.

Many people slumped on the ground, relaxed and fell asleep, but Fang Hanxian took out his notebook, kept thinking, and wrote things down in the notebook.

The notebook is full of fine print, densely packed. Except for him, few people can understand it.

From the conversion of chemical energy of water to the internal energy of air, and then to the conversion of steam power into mechanical energy.

Then convert linear motion to circular motion.

Bit by bit, everything he learned from Li Chen and everything he figured out by himself was written down in his notebook.

Gradually, he woke up suddenly and discovered a remarkable fact.

Two weeks ago, I was a first-year freshman who knew nothing and knew nothing.

Two weeks later, my notebook represents what I have learned in these two weeks: energy conversion, air internal energy, vacuum pressure, energy conservation...

He found that perhaps what he participated in did not seem to be an experiment to restore a steam engine. I may be participating in an academic reform that has never occurred in Kyushu.

From the product of restoration, the reform gradually moves closer to the academic restoration.

"This is academic."

Fang Hanxian murmured and fell into deep thought.