Chapter 976

"Yes, let's see what it is Telegram! "

in the laboratory, Niu Zhen was quite impatient. During his ten years in Qingzhou, he saw nothing in his life.

Hedong grinned. For those of them who are buried in the laboratory, it is the greatest comfort that someone can appreciate the fruits of their labor.

So he said, "emperor, two generals, please follow me. "

after that, he led the three men to a telegraph.

Now in front of the three people is a transmitter. This transmitter is very simple. In fact, it is a power switch. However, unlike modern switches, this switch is a guillotine switch.

There are two wires from the chopper switch board to the receiver which is 10 meters apart. The receiver is composed of a coil wrapped with copper wire, iron sheet on the coil, a paper reel and a pen.

"Two generals, this is a complete telegraph. When the switch is pressed, the whole circuit will be connected. When the copper wire coil is electrified, it will generate a magnetic force to attract the iron sheet and make a drip sound. This is a signal. When the current is cut off and the iron sheet returns to its original position, it will make a click sound. This is the second signal. Through the combination of the length of the two signals, it can send a signal to the opposite side We're sending information. " He Dong explained to Niu Zhen and Luo Quan.

As for Xiao Ming, there is no need to explain at all, because the whole set of codes he got were given to him by Xiao Ming, and now the codes are sent according to the small book he gave him.

Niu Zhen and Luo Quan are naturally confused. He Dong explains, but they look at Xiao Ming helplessly.

At this time, Xiao Ming said, "you two tell he Dong a word. Don't let me know. Later, let He Dong send it to me by telegraph. I'll tell you what you just said."

"What else? Isn't that pleasant to hear? " Niu Zhen's face was unbelievable, but he turned his head and said something to He Dong.

He Dong understood, and sat in front of the telegraph machine to send a telegram using the code given by Xiao Ming. When He Dong sent a telegram, the iron sheet affected the pen, and the pen began to draw a broken line of different lengths on the white paper with the movement of the iron sheet.

After He Dong sent the telegram, Xiao Mingnian said: "Luo Quan is not a thing! "

Niu Zhen was immediately dumbfounded, while Luo Quan angrily scolded:" you are not a thing, old mad cow! "

"Ha ha ha..." Niu Zhen was scolded by Luo Quan. Instead of being angry, he was happy. He said, "I didn't expect this thing to be so magical. It's just that the emperor is a little too close. "

" it doesn't matter. When I asked Su Liangcai to lay the wires, I buried the telegraph wires. As long as there are enough wires, I can go as far as I want. It's only a flash to send a message by telegraph in a distance of thousands of miles. As for those cities without thermal power plants, the temporary use of small generators is enough to maintain the telegraph. "

Xiao mingkou's small generator is the small power generation equipment made by Su Liangcai in his first laboratory power generation, which is equivalent to a mini thermal power unit.

This thing is enough to provide a power supply for the government, so that the wired telegraph will not be limited by the lack of thermal power plants.

Once the state of Dayu covers the whole country, the control of Dayu by the imperial court will be more timely in the future.

"It's just a snap of the finger to transmit sound from a thousand miles?" Niu Zhen and Luo Quan's swallowing and spitting, in their view, are really supernatural powers.

”Science and technology is really amazing. No wonder the emperor wants to promote science and technology at all costs, and let the poor children of Dayu go to school free of charge. If there are thousands of poor children who know science and technology, who can shake Dayu. "The ground turned red with excitement.

Luo Quan said: "yes, since they are allowed to go to school free of charge, we must make them study hard, otherwise we will beat them on the board!"

He Dong felt his ass when he heard that he said, "we students are always punished in the college. These beginners, middle schools and high schools will certainly be more severe."

Xiao Ming grinned with his teeth. He really pressed hard on education. In this era, there is no theory of quality education. For him, the primary task is to instill scientific and technological knowledge.

Therefore, the primary school, middle school, higher school and University in Dayu state are not set according to the age of contemporary schools, but according to the standards of Dayu state. The time from primary school to higher school graduation is only nine years, that is, three years of primary school, three years of middle school and three years of higher school.

He went to school at the age of six and graduated at the age of fifteen. After four years of college, he entered all walks of life.

He thinks that this time is quite short, but for the people of Dayu, it is still a long time. After all, after ten years of hard study, they can become the number one official, and the current education system takes 13 years.

"Education is the foundation of a strong country. Naturally, I will not despise it." Xiao Ming said in a positive tone.

Now Dayu has gone through a difficult decade, from zero industrial base to between the first industrial revolution and the second.

Now he needs more elites to make the science and technology of dayukuo move forward. These elites who have laid the foundation since childhood and entered the laboratory after 13 years of education will definitely surpass Lin Wentao, who is a half-way monk.At that time, Dayu's science and technology can achieve rapid improvement. After all, with the efforts of the older generation, the industrial foundation has been established.

After experiencing the wired telegraph, Xiao Ming looks at the three glass tubes that are being assembled in the experiment, which are exactly the tubes needed for wireless telegraph.

This kind of electron tube is simply a signal amplifier. Only with this device can the radio transmit further.

However, this kind of electron tube is very big, because it is the most primitive electron tube, and the material has not yet risen to the level of semiconductor, only the most primitive gate rare earth material is used. However, even so, this is also a problem for Hedong's team, and this is what their laboratory is really studying.

After all, cable telegraph is too simple to be studied by more than 30 people.

"There's no problem with cable telegrams, and this can't be relaxed." Xiao Ming ordered some electron tubes.

He Dong said, "now we are communicating with Lutong's School of chemistry, hoping that they can help us with the materials. As long as the materials are in place, the electron tube is not a problem. After all, welding is not a problem after the power is on. "

" well, I'll ask him to cooperate with you. " Xiao Ming patted Hedong on the shoulder.

In terms of time, science and technology in Europe is now in the period of big bang, and various inventions and creations will emerge one after another, because this is the result of European science and technology accumulation.

In addition, they have been guided by the scientific and technological achievements of the state of Dayu, so they will avoid many detours and accelerate their scientific and technological development.

Therefore, he can not relax in scientific research.

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