"There is a kind of machine, based on electricity, which can quickly transmit information for communication, so it is called a communication station."

Ji Shuyan: "Can you use electricity?"

He looked at Fu Tinghan in surprise, "This, won't it be hacked to death?"

Fu Tinghan: "Now the ionosphere is very clean, and the radio station only needs about 15 volts of current to transmit information, and this electricity does not die."

Ji Shuyan didn't understand, "This ...... How can this be transmitted, how can you guarantee that there will be thunder here and there will be thunder in Chen County?"

This time it was Fu Tinghan's turn to be stunned, and his face was dazed, "What? What does this have to do with thunder?"

"Where does lightning come from if there is no thunder?" Ji Shuyan said, "Aren't you going to telex a message?"

In fact, as soon as Fu Tinghan said it, Ji Shuyan felt that he was talking nonsense, could it be that when the thunder and lightning crackled, could you still run out to greet the lightning and ask it to help send a message?

Although he thinks that there are immortals in this world, he doesn't believe that there is a thunder and lightning mother in the clouds.

Zhao Hanzhang couldn't listen to it anymore, put down his pen and said: "In "Saying Wen Jie Zi", it is recorded that electricity, yin and yang are also shining. Electricity as they understand it is lightning."

Although they understood correctly, it was a big gap from Fu Tinghan's definition.

When Fu Tinghan heard this, he hurriedly pulled the topic back and said to Ji Shuyan, "This has nothing to do with lightning......

He paused for a moment, then changed his words, "Actually, there is something to do with it."

Fu Tinghan understood at a glance that there was a generation gap between them, and if Ji Shuyan wanted to help him, he first had to accept some new definitions.

He asked Ji Shuyan to sit down beside him, pulled a blank piece of paper and drew a picture for him to explain, telling him what electricity is, what is the ionosphere, and how information travels in the ionosphere.

This is a new worldview, and Ji Shuyan is more curious than questioning, "Fu Shangshu, where did you learn about such knowledge?"

There was a look of suspicion that he had been deceived.

Ji Shuyan couldn't help but look at the other person in the room, hesitated for a moment, but still reminded in a friendly manner: "Envoy, Fu Shangshu is pure, those so-called half-immortal witches still don't let Fu Shangshu see them, in case they are deceived."

Fu Tinghan pursed his lips and said unhappily: "Ji Shuyan, even if I am pure, it is not a matter of IQ, so I will not be deceived."

Zhao Hanzhang laughed when he heard this, simply put down his pen and walked over, and glanced at the diagram drawn on Fu Tinghan's drawing, which not only contained the ionosphere, but also the map of radio waves transmitted in the air and on the ground.

She thought for a moment and explained in words that Ji Shuyan could understand: "Mr. Ji, people often think that thunder and lightning are in the hands of the thunder and lightning mother, although I fear ghosts and gods, but I don't believe that there is a thunder and lightning mother in this world."

Ji Shuyan bowed slightly, he also thought so.

Zhao Hanzhang: "So, since there is no thunder and lightning, how does thunder and lightning occur?"

Ji Shuyan frowned, he had never thought about this question, most people in this world had never thought about it, maybe some people would have doubts in their hearts, but they didn't think about it deeply, and naturally they didn't study it further.

Zhao Hanzhang said: "Ting Han and I both think that thunder and lightning are caused by the clouds in the sky, when the white clouds are in the sky, it is a sunny day, and when the clouds are rainy, then there must be some clouds with electricity, and the charges between the clouds and the clouds are different, and they will collide when they meet in the air, just like two grumpy people hit each other's shoulders, and there will be a big conflict at this time, and the light that happened at that time, we call it lightning, and the sound is thunder."

"At this time, the electric explosion in the air is becoming more and more intense, and there is a great difference between the electric potential on the ground, just like the Han and Jin Dynasties, when the national strength of one country is too strong and the national strength of one country is weak, that country will crush the other country, and the same is true between heaven and earth, so the thunder and lightning in the sky will split to the ground, and if it is serious, the house will collapse, and there will be casualties."

Ji Shuyan slapped his thigh and praised, "Make you a high talent!"

Fu Tinghan: ...... He has just clearly explained the potential difference.

Zhao Hanzhang turned his head and smiled at Fu Tinghan, and continued to say to Ji Shuyan, "So, there is electricity in the air, which Mr. Ji understands?"

Ji Shuyan nodded.

Zhao Hanzhang rushed to listen to the tricks

hand, took a pearl from her head, held it in his hand and said to Ji Shuyan: "Fu Zhongshu said, there is a kind of short wave that can travel in the air, just like this pearl, if it is a short wave, we shoot it down, it touches the ground and rebounds, then falls, and rebounds...... From this point to the other point."

Zhao Hanzhang waved his hand at Tinghe, who immediately ran over to pick up his pearls, and then pricked up his ears to listen.

"What we need to do now is to develop a machine that can emit short waves that travel through the air, and it will fly up the ionosphere, and the ionosphere will be between 120 and 4,000 miles above the ground, and the radio waves we emit will be transmitted in it, and then it will fall to the ground, and then it will bounce back into the air by the ground, and it will continue to propagate, and then it will bounce back again......

"It's like that pearl, it goes on and on, and finally it travels thousands of miles away," Zhao Hanzhang said, "It's also that machine, it can capture that radio wave, so that we can know the information thousands of miles away."

Ji Shuyan still had a stomach full of questions, and he listened to it, but he didn't understand it very well, so he asked, "That machine can let us hear sounds thousands of miles away?"

Zhao Hanzhang nodded, paused and said, "It's not words, it's this."

She curled her finger and tapped the table, and said to him, "If I limit myself to you, three long and one short is dangerous, and three short and one long is leaving, this is our code word. It's the same with the telegram, we can parse the radio waves we receive based on the code, and that's the message."

Ji Shuyan was still skeptical, "Envoy, it's not that I don't believe you, but, is this really true?"

Zhao Hanzhang smiled and nodded.

Ji Shuyan didn't speak.

Fu Tinghan sighed and said, "If you don't believe it, let me build this machine."

Ji Shuyan suppressed the excitement in his heart and said, "I am willing to build with you, what should we do first?"

Fu Tinghan: "We have to prepare the materials first......

Zhao Hanzhang saw that they could finally cooperate, so he turned around and went back to deal with her official documents.

The telegraph machine is not something that can be made in a short period of time, but as a research project, Fu Tinghan will do research after he is busy, and Zhao Hanzhang will occasionally go to work.

Compared with Ji Shuyan, Zhao Hanzhang can better understand what Fu Tinghan wants, so he cooperates tacitly.

Ji Shuyan put himself and Fu Tinghan on the same line at first, and then slowly sank, and now he has begun to stand behind Fu Tinghan with a small notebook every day as an apprentice, oh, if Zhao Hanzhang comes, he will follow behind the two of them, and he is the apprentice of the two of them.

After Fu Tinghan finally made wires and generators, making Ji Shuyan feel the feeling of being electrocuted, he finally believed that they were indeed doing something very powerful.

At this time, it was the sixteenth day that they had surrounded Mengxian County, and there were only two days left before the counterattack time set by Zhao Hanzhang.