To be honest, if Fang Cai's words were said by someone else, then Tang Duo would have asked someone to throw him out, this is still light, if it is too serious, it is not too much to be killed. This is obviously making fun of him, and if he doesn't say this, the three-year-old child won't believe it.

But these words came out of Tang Jin's mouth, and after seeing the magic of his so-called "technology", now he just said that he could fly Tang Duo, although Tang Jin had already flown once.

"Tell me, what do you stinky boy think? What was the greenhouse that could sow seeds all year round last time, and now is there any secret method for transmitting sound for thousands of miles? Tang Duo said with great interest. These fresh gadgets that Tang Jin took out refreshed his three views and aroused his curiosity at the same time.

"Thousands of miles of sound? Pretty much. Tang Jin didn't deny it, but he didn't admit it either. As a modern person, he firmly believes that only mobile phones are in line with the real sense of thousands of miles of sound. However, whether it is the construction of base stations or the launch of communication satellites, it is not something that he can do now, and he may not even be able to do it in his lifetime. Of course, short distances are still possible, and as for the distance from the palace to Khanmeng, don't even think about it.

The phone couldn't be made, and the distance was limited when it was made, so Tang Jin retreated and thought of another communication tool that also had a pivotal position in history, the wireless telegraph!

Wireless telegraphy, although not as efficient and convenient as telephone, is undoubtedly the most useful thing at the moment. Two wireless telegraphs, plus a radio transmitter, it is not a dream to contact Khan Meng from the palace. If it is from the east of the town, it is even more of a face radio transmitter are saved, as for the signal interference problem to be considered in the middle of the propagation...... Joke, did you have anything that could jam the signal in your feudal era? If the sky is supported, thunder can affect it.

Of course, the telegraph is not something that can be done, and nothing else, the power supply that matches it is a trouble. If you want to transmit over long distances, you have to increase the power, and more power means that the power supply must also be sufficient.

Tang Jin thought at first that he would make two dry batteries to make a living, but then he thought about it and it would be better to change it to a hand-cranked generator, although it would be easy to make a giant that was difficult to move, but this itself was for the convenience of communication between the two sides, and it was not really used on the battlefield, so if it couldn't be moved, it would be put there. Maybe it can be used as a tool to fool believers at that time, wouldn't it be beautiful to kill two birds with one stone?

After explaining a little to the two about the telegraph, Tang Duo's eyes lit up. grabbed Tang Jin and asked randomly, but in summary, there were actually two questions, "Is it easy to make?" "Can ordinary people use it?"

And Tang Jin's answer

The case is, "It's not very easy to build, but it's not that difficult, and it requires enough manpower." "The average person can use it after they have undergone the appropriate training."

Tang Jin knew what these two people were thinking, two guys who had been engaged in intelligence work all their lives, and they had been longing for this kind of thing that could significantly speed up the transmission of intelligence and greatly improve the efficiency of operations. After all, in order to improve efficiency as much as possible, Tang Duo didn't say that Pei Ming had deployed nearly a thousand secret agents around Wangshu City, in order to receive information from all sides as quickly as possible. In order to speed up so much, they are so open-minded, let alone such an open thing as the telegraph?

"Okay, if you need anything, we can find it for you as long as it is available in this world, but you must make this as soon as possible...... Telegraph. Tang Duo waved his hand and said with great momentum. Pei Ming on the side rarely did not dismantle his platform, but nodded in agreement.

However, unlike the excitement of the two, Tang Jin looked helpless and laughing, looked at his father and godfather, and then looked at the sky outside, and emphasized: "Dad...... I'm going home for the New Year, not going home to work. Even if you want to build it, can't you wait for me to pass this year? Besides, this thing has to be made a pair to be useful, and the first pair I made must be used for myself first, why are you excited? ”

When Tang Duo heard this, his still imposing body collapsed instantly, and he was stunned for a while and didn't know what to say. Tang Jin said as if ...... No problem.

"Father, that's not ...... Isn't that happy for you? My son is just smart, and he found a solution to such a difficult problem at once. Tang Duo said with an embarrassed smile.

"Just say how many you want?" Tang Jin ignored him and said directly

"Let's start with a five-pair." Tang Duo also changed his face instantly.

As soon as he heard the other party's words, Tang Jin almost bit his tongue, "No, Dad, what are you doing to me?" Tinker Bell? Feeling in your pockets and pulling things out? I have to do this thing little by little, assemble it little by little, and if I count the supporting power generation equipment, I can make a set in a year. You need five sets of ...... You want to exhaust me, can you say it directly? ”

Tang Duo was stunned for a moment when he heard this, and then withdrew his hand like a child who had made a mistake. He knew that this thing would definitely not be easy to do, but he never expected it to be so difficult, only one set a year, and he asked for five sets in one breath, which was definitely a lion's mouth.

Compared to Tang Duo, Pei Ming thought more, and when he heard this, he frowned and said, "Then what if we send more people?" Can it be speeded up? ”

Tang Jin shook his head decisively when he heard this, "It's still the same, the most you can do is to speed up the creation of parts." The final assembly and commissioning link is the time when the amount of work is the largest, and it is again

I'm the only one who can, so it's useless for you to add more manpower, but it will affect my speed and increase the risk of leakage because of too many people. ”

"That's ......" Pei Ming's brows furrowed again when he heard this, and he couldn't think of any good way for a while.

Seeing that the two of them fell into contemplation because of a telegram, Tang Jin couldn't help but smile bitterly, then stood up and stretched and said, "Forget it, forget it, it's better to build the first one to use than to think about what you don't have." When the technical level of Khanmeng's side goes up, maybe it will be able to speed up production, not to mention five sets, fifty sets will not be a problem. ”

As soon as Tang Jin said this, a burst of light erupted in the eyes of Tang Duo and the others. Seeing this, Tang Jin decisively turned around and left, and was asked by the two of them again, he estimated that he had not died of exhaustion from building a telegraph, but he had to be drowned by the saliva of the two first.

However, after leaving the study, Tang Jin did not go back to his other courtyard as soon as possible, but went directly to the other courtyard where Tang Xu lived temporarily. Such a big thing happened as a key member of the key member who helped him in Khanmeng's layout, no matter what the reason Tang Jin had to tell him, and even Tang Jin had already begun to consider whether to teach this Morse code, after all, the only person around him who had the ability and reassured himself was only this guy.

When he came to Tang Xu's courtyard, as expected, this lazy thing was still sleeping, Tang Jin was not in a hurry, he casually turned out the best tea hidden by the other party, and brewed himself a full cup without feeling distressed.

When Tang Xu woke up, looking at the pile of tea leaves that had been ruined by Tang Jin, he wanted to kill this guy on the spot, but he still forced himself to calm down, the main reason was ...... Can't beat it.

Tang Jin didn't talk nonsense to Tang Xu, told the other party about today's events one by one, and then said that he wanted him to be the supervisor on his behalf. Tang Xu agreed without much thought, and then asked Tang Jin to teach him the Morse code, this kind of secret method that can transmit sound for thousands of miles, but what many people dream of, now that he has it at his fingertips, he doesn't believe it if he is not excited.

However, Tang Jin obviously had no intention of teaching him now. The telegraph is still not a word, you learn a fart Morse code? If you learn, won't you understand if I and Qin Hai secretly scold you in the future? That's not going to work.

So, Tang Jin, who successfully aroused Tang Xu's appetite, ruthlessly deprived him of the right to study, left the other party's courtyard by himself, and continued his previous leisurely days of eating and waiting for death.

To be honest, after being busy for so long, Tang Jin suddenly found that it seemed to be a good thing to eat and wait for death, if it wasn't for the sake of life, he would really be like a second ancestor who had no ambition to eat and wait for death, but unfortunately God didn't allow it.

(To be continued)