The principle of the so-called wired telegraph is actually very simple.

It is to convert the information into current, send it out through the wire and receive it by the terminal.

Therefore, the transmitter is actually a keyed signal transmitter, while the receiver is an interpreter.

The principle of manual telegraph machine is that one person controls the key, forms signals through "points" and "strokes" formed by opening and closing, and transmits them through wires.

Morse also designed a set of code on the basis of predecessors, which encodes letters and numbers for easy transmission through circuits.

There is no need for complex circuits. Only one line is needed to solve the problem!

To put it bluntly, it's just a piece of paper to see if it's pierced.

But this improvement is much more reliable than that electrolytic signal, which is also the basis of the development of wired telegraph.

What Sulu is going to take out is this set of coding and transcoding methods.

"As long as we have this and build two more terminals, wired telegraph is completely possible! It will change the world..."

The speed of information dissemination is the difference between primitive society and modern society!

"I have to say that sometimes it feels good to make history!"

Looking at his design, Sulu nodded: "this patent alone will be enough for me to eat all my life. If I set up a telegraph company, it will make a lot of money!"

The reason for taking out the technology of wired telegraph. At this time, it is more to attract the attention of the above.

Only real talents can attract the high-level attention of Greentree castle and be absorbed into the interior!

This is not only the promotion of status, but also helpful to many of Sulu's plans.

Therefore, he would rather suspend his extraordinary side of the practice, but also in the electrical research institute to make a start.

In addition, there was another consideration in his mind.

Although both the White Eagle Federation and Greentree Castle laboratory attach great importance to patents, he is light hearted after all.

The interests and future represented by cable telegram are too big to guarantee that no blind guy will jump out.

"If your cooperation is good, if you are really shameless enough to directly seize the research results... Ha ha..."

Sulu sneered to himself.

He still has the big killer of wireless telegraph in his hand!

In fact, the principle of wireless telegraph is similar to that of wired. It also converts information into electromagnetic waves, changes from low frequency to high frequency, and transmits and receives it through high-power antenna.

In fact, it is to change the transmission medium from wire to air.

"If someone wants to rob me of my achievements, let them do it... After the other party has built a large-scale construction and laid a telegraph network, I'll take out the wireless telegraph technology. It's pretty!"

Compared with wired telegraph, wireless telegraph only needs a high transmitting station.

This cost is negligible compared with the cost of laying telegraph lines across the continent or even across the ocean.

At that time, if they don't die, Sulu can add a gram to his surname!

……

It was not cold in autumn on the east coast of the Federation. In the slight cool wind, Sulu came to the laboratory.

"Where's the professor?"

He looked at Cecilia at work and asked in a low voice.

"He's in a bad mood. Don't bother him if you have nothing special."

Cecilia replied.

This Sulu knows.

Professor William's large-scale communication experiment can be said to be successful or failed.

The success lies in proving that current can indeed be used to transmit information, and the speed is still very fast!

The failure lies in the pit father's electrolytic terminal. It is not only troublesome to operate, but also easy to make mistakes. In addition, it requires a large number of lines and the cost is very high.

Therefore, it's strange that Professor William wants his grant to be shot directly.

"I have something important. I wrote a paper and want to publish it internally!" Sulu replied.

In fact, in terms of the status of Greentree Castle laboratory, it is no different from publishing the whole Federation.

"Hiss..."

Not surprisingly, Cecilia heard a cool voice: "you... Paper?"

Although she knew that the newcomer was very powerful, she didn't expect that the other party could be so powerful!

"Let me see."

She took the manuscript and glanced at it: "the idea of current from DC?"

"This is my topic, which has been approved by Professor William."

Sulu explained a few words nearby.

"Very good, very enlightening!"

Cecilia returned the manuscript to Sulu: "I think it's worth at least five points! You can go to your mentor. He's in the office!"

"Thank you!"

Feeling the envious eyes of Victor nearby, Sulu suddenly walked into the office.

"Professor!"

William is designing something behind his desk. He has a single expression and can't see whether he is happy or angry.

"This is my paper."

Sulu thought for a moment and handed in the manuscript.

"Yes!"

William took over and looked at it with some surprise: "your derivation is more mature and rigorous than before... Good, I'll submit it for review. You can go out."

"Thank you!"

Sulu saluted and gently withdrew from the door.

Wickdor looked at his back and finally couldn't help but say, "a newcomer wants to publish a paper? Don't be scolded by his mentor..."

Andrew, who was wiping the table next to him, immediately trembled.

"Well, Victor, Sulu is really capable and talented!"

Cecilia has to admit that this new entrant has great strength, especially in the research of electricity, as if she had an innate talent.

When others were groping and struggling in the dark, he ran to the goal with a torch.

It also runs very fast. It's like a wild horse!

……

Late at night.

Institute of electricity.

GreenTree Castle laboratory is divided into inner ring and outer ring, which are uniformly under the jurisdiction of Greentree Council.

"Interesting."

Slyden Walter put on his reading glasses and looked at the beginning of the paper: "on DC and some derivation ideas?"

He looked at it for a long time, and even the black tea on the table was cool.

A long time later, slyden Walter looked at the author: "Sulu portley? Interesting!"

He immediately wrote and made the final reply: "the logic is clear, the thinking is concise, the review is passed, and it is suggested to reward 15 points."