That day, after school, the students of this year's batch were all pale, their eyes lifeless as they floated out.
After six years of suffering, they thought that they could finally see the light, but they found that they were greeted by an even deeper darkness.
Thinking about the next four years, everyone wanted to cry but had no tears.
The students of the other batches were puzzled at first. These seniors had been in high spirits recently, so why did they suddenly look like they were living a life worse than death?
When they found out about the situation, all of their faces turned pale.
The future of these seniors was also their future …
Some people were living a life worse than death, and naturally, some people were happy.
For example, Zhan Caixian really liked this place.
With the teachers around, the students were also interesting, could learn all kinds of interesting things, and could even go to the library to read interesting comics.
She didn't like to work in any department, and her family wasn't short of money. It couldn't be better for her to continue studying in this school!
Ten days later, the first batch of students graduated again. However, this time, the graduation party was much simpler.
This time, all the students from ordinary families, except for one person, chose to graduate.
After all, for them and their families, this level of learning was enough. Another four years of learning was too much for them. After all, the family situation of ordinary people couldn't support them to continue studying like this.
They didn't want it to be like this.
Dayao was currently undergoing changes. Lan City and Dayao were different every month. When they were at the school, they often wanted to participate in the changes as they watched from the sidelines.
Therefore, they chose to graduate and work in the six departments.
Ren Baqian understood this very well.
As for the descendants of the influential families, none of the successful ones graduated.
All of them entered university.
Amidst the wailing, the first thing that greeted them was the entrance exam in a month's time.
…
At this time, in the imperial court, a group of people had their eyes on a small table in the center.
On the table was a black box with a disk with numbers from 0 to 9 written on it.
There was also a wire on the box that connected it to the outside of the hall.
Ren Baqian held the microphone on the box with one hand and rotated the disk with the other. After a while, a beeping sound came from the microphone.
After only one ring, the other end was picked up.
"Your Highness?"
"We succeeded!" Ren Baqian looked at everyone and smiled.
Before anyone could react, the person on the other end of the phone cheered.
Ren Baqian said a few words of encouragement to the other end of the phone before hanging up and looking at everyone in the hall with a smile.
"Your Highness, isn't this the same as the radio station from before?" Shi Qing asked.
Although Ren Baqian didn't explain, they had already guessed the purpose of this box.
"No, a radio station is a radio station. The radio station is where we talk to each other in different channels. It is a fixed frequency communication. There were a few disadvantages. First, the number of fixed frequencies was limited, and the radio station could not be used by everyone.
Secondly, if someone else got their hands on the radio, they would be able to hear the conversation on the channel.
Although this had not happened before, it did not mean that it would not happen in the future.
Thirdly, the radio station's ability to resist interference is weak. For example, radio stations can't be used in Tianjing Basin. "
They didn't understand the technology and didn't understand the meaning behind his words.
However, from Ren Baqian's words, he could tell that this box was something better than a radio station.
"Introduce them to me," the empress said faintly from her seat of honor.
"Yes!" He smiled at the empress.
Then, he turned around and said, "This is a telephone, which is used for long-distance communication like a radio station.
There is no need to elaborate on the other two points. First, this is point-to-point communication. A telephone only needs to dial the corresponding number to communicate with any other telephone.
For example, this telephone can communicate point-to-point with any department in the Six Departments or any department in any city at any time. Everything that is said can only be heard by the person at the other end of the line. "
Everyone nodded. This time, they understood.
The radio station was for everyone to chat together, but this telephone was for two people to chat privately.
"Second, and most importantly, the popularity of the telephone. Telephones can be installed in any place in Dayao, and there can be millions or even tens of millions of telephones.
Whether it is in every department, every city, or even every household.
Everyone could use a phone to dial the corresponding number to talk to one of the millions of phones out there.
For example, Sir Shi can install such a telephone in his residence.
As long as I have the corresponding number of Sir Shi's home telephone, I can call his residence from any place at any time and talk to him through any telephone.
For example, all of you can contact him through the telephone in any corner of Lan City or Dayao. Even if you are in the Sixty Thousand Mountains, you can contact him through the telephone. "
After Ren Baqian finished speaking, he smiled and looked at everyone.
He had to wait for them to react.
Although they had seen enough new things over the years, they still needed some time to digest Ren Baqian's words.
On Earth, the early application of the telephone was the magnet telephone, which was the kind in movies that generated electricity by hand while making a call. After that, the operator would transfer the call.
After that, there was the common battery telephone, which no longer needed to generate electricity by hand. However, it still needed the operator of the telephone exchange to transfer the call manually.
This kind of telephone needed to be transferred manually, so there weren't many numbers. Naturally, there weren't many users.
At that time, the largest telephone exchange in Asia, Shanghai, had only a few thousand users.
The biggest limitation of the telephone wasn't the technology of the telephone, but the technology of the telephone interaction.
The first two types were manually connected. After that, there was the step-by-step switchboard, which allowed the telephone to be connected mechanically. However, there were also many shortcomings, especially the high power consumption and the difficulty of maintenance.
Knowing that this kind of thing would enter millions of households sooner or later, Ren Baqian naturally eliminated it.
What he used was the more mature vertical and horizontal switchboard technology.
In the 50s and 60s on Earth, the use of this kind of switchboard had become mainstream.
In China, it was used until the 80s and 90s.
Of course, this was also a technology that would be eliminated sooner or later.
However, the next generation of technology required electronic technology.
Ren Baqian waited for a long time before the faces of everyone gradually began to change.
"Eh?"
"Your Highness, do you mean that this thing can be installed in our residences?"
"Not only in your residences, but also in everyone's homes, including those villages in the mountains!"
Ren Baqian corrected.
Of course, this was on the premise that those birds that had nothing better to do and played with wires had to be driven away!
The cities were fine, but there were many beasts in the wilderness that liked to pull wires or dig holes.
"Eh?"
Everyone suddenly exclaimed.
Installed such a phone in everyone's home?
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