On Friday afternoon, a new course awaits Class A.

Originally, the practical class that should have been taken in the second year was mentioned to the first year because of Professor Ashley's special attention. The instructor of the practical class was José Anscova, the director of the trainee factory. Suddenly such a group of delicate students came, which made him very uncomfortable.

"The school uniforms are all off, the white color is not dirt-resistant, next time I change into dirt-resistant clothes and come back to class." He yelled disapprovingly at the group of students who were too focused on appearances.

When the students took off their coats in a panic and piled them on some fairly clean tables, he took out a large bolt at random, told the students about the important role of bolts in mechanical applications, demonstrated the use of car windows, and finally asked everyone to try to turn a standard size finished product with a lathe.

The boys in dormitory 305 were very clever enough to hold on to a few workbenches around Duchamp. Like many students who have forgotten the rules of operation, they craned their necks straight and watched Duchamp in action.

"First, open the bayonet." Duchamp muttered to himself as he operated.

Everyone hurried to repeat the action.

"Put the prepared irons in the bayonet."

Another flurry of panicked action.

"Push the retaining ring on the left hand side, and tighten the retaining ring on the right side."

Duchamp glanced at it, and there were several people whose fixing rings could not be pushed up, and the irons were not fully placed in the bayonet at all.

"It's so stupid!" He thought to himself and repeated it out loud.

"If you can't push it, adjust the position of the iron rod to the top of the bayonet." Eric was there to remind him.

"Use a ruler and a marker pen to compare the original, make the mark of the lathe, and then use the original to compare and verify." Duchamp continued to demonstrate patiently.

"Then, put on the turning tool of 6 wires, align with the mark, and pay attention to the start and stop times."

Something happened in the class, and the youngest Aisha, seemed completely unfit for this kind of class. As soon as the turning knife started, she forgot how to stop, screaming and looking for the mechanism everywhere, and a boy next to him quickly pulled down the lever for her.

"It's too dangerous!" Several classmates near her saw the knife "bump" and broke at the same time, and then bounced out, scared out of a cold sweat, thinking that they must change to a safe place in the next class.

In the simplest lesson of the practical class, Mr. Jose's face was stretched long, and he took a large basket and stood guard at the door, waiting to accept the students' results.

Duchamp marked the round nut with a pen, cut off 6 sides directly on the lathe, and with a little polishing, a complete bolt was obtained. Students who are confident that they don't have that kind of car skills use a file to file fiercely.

Fang and Dietrie were also trying on the lathe. Lemmour's one had broken down on one side.

"Let's do it all over again!" Duchamp threw his scrap directly into the waste bin.

Lemmour's face was crying, everyone has shortcomings, and this kind of hands-on work is what he is not good at.

He repeated the first step as he took another iron bar, muttering in a low voice, "Why do we do this rough work?" ”

Duchamp sneered and was too lazy to answer such a stupid question.

Some people can do such a simple job in 10 minutes, and some people can do it in an afternoon.

"It's all right." Learmel took another finished product and asked Duchamp tentatively.

"Look at the door." Fang sneered and reminded that he was also busy making another one.

Learmey turned his head to see that some of the students who had already finished their work took samples to hand in their homework. José was holding a caliper, carefully measuring the size of the finished bolt.

"The spiral is two strands long, unqualified!" With that, a hard-earned sample was thrown into the recycling bin.

"Hexagons are unequal and unqualified." Another one was thrown into the recycling bin.

After scrapping three or four, Learmel finally finished a decent one, and carved it there with a file.

"Okay, don't polish it, it's not enough to polish the diameter again." Duchamp stopped him from self-harming, and a few friends took a pile of parts from their car to hand in their homework.

"Well, this is qualified, what's your name?" Fang's sample passed smoothly.

"Well, Styry did a good job, this kind of work is trivial to you." Teacher Jose patted Styry on the shoulder affectionately, they had known each other for a long time.

"This, it seems that the diameter of the nut is a little thinner." José was very dissatisfied with the one from Lemmour, and when he saw Duchamp beside him, he reluctantly put this one into the finished basket.

"yes, it's over." Learmu happily thanked the teacher and ran out.

"Children with intellectual disabilities have a lot of fun!" Fang said contemptuously.

"I don't know if this lesson will discourage their interest in the campus guide network experimental group." Duchamp was full of malicious speculation.

In the past, the internship factory was the base camp of the Civil Orientation Research Association, and Duchamp invited some students who had already completed their homework to rest and wash their faces, and have a drink to quench their thirst by the way.

The aristocratic students who loved beauty rushed to the sink in front of the warehouse, carefully washing their hands and faces, and even cleaning their nails with a wire brush, which made Duchamp's eyelids jump.

He went into the kitchen and brought out the ice cubes in the refrigerator and his personal ice wine.

"This wine tastes good!" There are still knowledgeable goods.

"This is a Lieman specialty canyon ice wine, and I brought some back when I went to Leman on vacation." Duchamp proudly introduced.

"I'm so envious of being able to travel so long."

"What's the view like in Leman?"

Duchamp answered them one by one, and this semester, he seemed to get along with his classmates a lot better.

"Hey, are you going to give a lecture here tomorrow?" A classmate kicked the sign at the door.

It reads: Saturday Event Preview: War and Peace Using the Channeling Network, Time, Saturday at 7 p.m. sharp, Speaker: Stellary Duchamp.

"Yes, this is the place of the Civil Guidance Research Association, I will talk about this topic here tomorrow afternoon, the content of the course is what I got during the holidays to the Epstein Foundation in Leman Autonomous Prefecture, if you are interested, you can come and listen to it, but I listen to it with the students of the guidance application class and the guidance communication class."

"Hmm!" Hearing that they were going to be with civilian students, many began to hesitate.

Duchamp thought lazily, whether love will come or not, and the master has no obligation to serve you.

On Saturday morning, after the resonance class ended, Duchamp solemnly informed the three friends of the afternoon lecture.

"If you don't go, you won't be able to make up for the lost energy after 10 hours of sleep." Liermu said with a snort.

"I want to tell you, this is the real Xiaozao, these courses are very related to the guide netizens, I won't talk about it in the class, it's your loss if you don't listen." Duchamp bared his teeth and threatened.

Liermu struggled with a snort: "Then, for the sake of a few beautiful women, let's reluctantly listen to your nonsense." ”

Before the official lecture, Duchamp took a look at it, and suddenly felt a headache, and there was a feeling that he didn't come, and he didn't come.

Those five cute girls actually came together!

What kind of demonic wind is this blowing?

Duchamp's head spun around, and he suddenly understood why they came, blaming him for adding the word "war" to the title.

In addition, in addition to the three people in the same dormitory, there were also the class leader Eric, and Mark Song, who was presumably here to collect Duchamp's quotations, as well as two or three other sparse people.

Duchamp lifted his mood and tried not to be affected by the arrival of the five cute masters.

Now he couldn't change the subject, so he had to follow the established outline.

"As you know, the University of Ruley is about to start the experiment of the Guiding Network, this is an experiment, but this is not an ordinary experiment, it will break many glorious traditions of our country, and it will also break many prisons. It will change our habits, change many aspects of society, even our emotions, and the social order to which we are accustomed. ”

"We know that the military has invested money in this project, and we must first understand why the military is interested, and quickly decided to invest a lot in this project, and the reason for this has to start with the Hundred Days War four years ago. As we all know, in that war, the empire did not lose in military strength, but lost in communication, within a not too large range, the Liber Kingdom used advanced means of communication, so that its army movement and local raids became extremely rapid, and the command of the imperial ** team was cut off because of communications, and orders could not be issued at all. ”

Duchamp took out a map of the kingdom of Liber and gave the audience a rough account of the defeat of the Empire: "The vanguard of the Empire advanced under the walls of Grantelle, the capital of Liber, in only 10 days, but in the remaining 90 days, they were never able to climb over this not very wide wall. ”

"I don't advocate war myself, but what should we see from this war, how fragile it is to rely only on a single line of communication to maintain communications, and if someone else waves a pair of scissors at any part of this line, the communication at both ends of the line will be cut off."

"Now who can tell me, what is the net? A web is a constant line of communication, and no matter which part of it you cut, the information can pass through the other parts until it reaches its destination. It simulates the way a letter arrives in real life, with the recipient's address above the content, if one of the ways to the address is broken, the postman will take a detour to deliver it, and if the address is incorrect, the letter will be returned to the sender. ”

Some classmates quickly raised their hands, and Duchamp called them by name.

"But the postman is human and can think, how can the network think and find the right way?"

Duchamp nodded approvingly and said: "It's a good question, I'll tell you the truth, now the Epstein consortium is trying their best to solve this matter, they have proposed a method, called the priority operation algorithm, the approximate operation method is that when route A is broken, or because the information passing through at the same time is too large and blocked, then this information will be preferred because of its address number, and so on, until the end is reached." ”

Looking at the blank expression on the listener's face, Duchamp couldn't help but secretly sigh that the first-year students were still too tender.

He stood up and asked the students to play a game of passing boxes in order to simulate this way of transmitting information. The boxes were stacked in the back row, some of them acting as obstructions, while others freely formed different transmission paths, and the obstructions kept running around in the middle of the road, preventing the boxes from being passed to the end smoothly, but because the total number of roads was more than the obstacles, there was always a chance for the boxes to cross the obstacles and reach Duchamp's hands.

"Through the game just now, do you know what is the key to keeping information flowing smoothly?" Duchamp asked.

"There are enough connection points in the net, and it is better to cross-connect them with each other, so that it is easiest to pass them on." Some students who participated in the game answered.

"Yes, that's it. However, in reality, the connection of the network is costly, and at the same time to achieve an effective connection, it is necessary to calculate the economy, and it will not be long before the line of the campus network will be designed and built by the students themselves. In addition to this problem, the more difficult problem is how to make the network know these information addresses and be able to dispatch them according to the established logic. What method did we just use in the game? Who knows? ”

"It's identified by people." A living voice replied, and Duchamp looked at it, alas, one of the five cute masters.

This student answered well, the current method is to employ people, when the mail is distributed, the workers of each post office carry out manual sorting of letters according to the address. And when using the communicator for calling, the current method is that the communication company according to the number display of the call phone and manual jumper, when everyone uses the communicator, and even can connect from this end of the empire to that end, we only dial the number, and the actual situation is that in the process of waiting to be connected, there are countless sister paper in the communication bureau to carry out the jumper work, for you to free up a smooth line. ”

"I have to say that this method is quite clumsy, and now the communication line is basically the original state of a single line, which has caused a lot of waste and at the same time, it has made the communicator unable to reach every family."

"I see a lot of people who are at a loss, let's play another game. We need a boy and a girl, is there anything I can do to help me? It's good to have classmates Gude and Ella invited. ”

There was a burst of laughter from the students.

Duchamp was satisfied to see Ella's face flush.