The Ding Chou Kedian test has just ended, and Bi Maokang, the secretary of the Ministry of Industry, came to him again, and this time it was good news: the cable factory was put into production!

Of course, Zhu Cijiong did not immediately order the laying of telegraph networks throughout the Ming Dynasty, and the sending and receiving of telegrams for hundreds or even thousands of miles have not been tested, and Zhu Cijiong does not know if there will be problems, because in the era in which he lives, such a backward means of communication as cable telegraphs have long been eliminated, and he does not know how far this telegraph signal can be transmitted, stable and unstable.

Since there are uncertainties, it is necessary to experiment, and if the telegraph network is fully rolled out and only to find out that there are problems, it will really be a waste of money and labor.

He also thought about the location of the experiment, first paved the line between the capital and Dongdaying, and tried short- and medium-distance communication, if there was no problem, then paved the telegraph line between the capital and Liaodong, and tried long-distance communication.

Tianjin to Beijing is only more than 200 miles, and the construction of Xicheng District is almost finished, Zhu Cijiong simply asked Li Mingfu to lead the Wuwei army to escort 100,000 prisoners to cooperate with the Ministry of Industry to dig up the trunk and lay the line.

Bi Maokang may be addicted to using the floor turning dragon, he actually directly designed a special earth turning dragon for the telegraph line laying work, the wiring groove is about three feet deep and two feet wide, he transformed the blade behind, directly narrowed and lengthened, so that digging up the line groove is called a god speed.

When excavating, the first team of captives first shoveled the loose soil, and then another team of captives lifted the wire frame into it, and then another team of captives carried the mixed cement directly into it, and then another team of captives smoothed the cement, and there were cover plates, pulled underwater cables, connected special joints, and waited for the cement to dry out the standard frame, and pulled the cable in the back, 200,000 people were just like the assembly line, The route from Dongdaying to the capital was paved in ten days!

One end of the telegraph line is in a side hall of the Qianqing Palace, for which Zhu Cijiong also specially trained ten eunuchs as correspondents, specifically responsible for sending and receiving telegrams, this day he couldn't wait to come to the communication hall in the morning, presiding over the first experiment of remote communication, at this time the ten eunuchs had already lined up neatly in the communication hall, waiting for the emperor's instructions.

As soon as Zhu Cijiong came in, he excitedly said to Wang Chengen, the eunuch who was in charge of communication: "Turn on." “

Wang Chengen immediately waved his hand to the two eunuchs behind him, the two eunuchs hurriedly walked out, and soon, there was a unique popping sound of steam pistons in the side hall next door, and a drum suddenly sounded in the "dong" hall, which is an indication device that can be connected to the telegraph line, it is very simple, it is a drumstick in the middle, the top is a small drum, the bottom is a small gong, the drumstick is sucked up to beat the small drum when the power is turned on, the drumstick will fall down when the power is off, and the gong is sounded, which is quite a click on the drum to march into the Ming Jin to collect the army.

Now that the drum is sounding, it means that the telegraph is energized, everything is ready, and it is waiting for Zhu Cijiong to speak.

Zhu Cijiong thought about it, and simply said casually according to the plot in the movie: "Send a report: This is the Qianqing Palace in the capital, please reply when you receive it." ”

Hearing this, Wang Chengen waved his hand at the other two eunuchs, who immediately sat down in front of the brand-new telegraph, one took out the standard telegram coded paper, picked up the pen and waited, and the other opened the "Encyclopedia of Commonly Used Chinese Character Coding" and quickly looked it up, and soon they translated Zhu Cijiong's words into binary code.

After the decoding was completed, one of the eunuchs immediately put his hand on the telegram sending button and began to press it regularly, while the other eunuch sat next to the telegram receiving device and listened carefully, pressing the bell to write down the code, and the sending and receiving device could also be set to linkage, so that he could check whether he was sending it correctly.

In less than a tea time, the telegram was finished, and the two of them sat together again and checked it carefully, and found that there was no problem, so they stood up and saluted respectfully: "Your Majesty, the telegram has been sent." “

Zhu Cijiong nodded and said nervously: "Sit down, prepare to receive the telegram." “

When the two eunuchs heard this, they hurriedly sat back down, and both of them took out the standard telegram coded paper, and stared at the telegram receiving device with their pens in their hands.

In less than a stick of incense, the telegram receiving device sounded "ding ding ding", the two eunuchs quickly wrote down the code represented by the ringtone, and it was less than a tea time, the ringing of the telegram receiving device stopped, and the two eunuchs immediately put the code they wrote down together and checked it, and found that there was no problem, and opened the "Encyclopedia of Common Chinese Character Codes Encyclopedia" to find it quickly.

Soon they translated, and the two eunuchs stood up at the same time, and one of the eunuchs held up the telegram in front of Zhu Cijiong, bowed his head and saluted: "Your Majesty, what they replied was: This is the Dongdaying Admiral's Mansion, long live my emperor, long live long live." “

Although this is a bit suspicious of sycophancy, but there is no problem with the content, it seems that the telegram is connected, Zhu Cijiong was happy at first, and then said angrily: "Send a report: Can you say something else?" “

The two eunuchs hurriedly translated Zhu Cijiong's words into a code and sent it over, and they quickly reported back, and the content of this telegram was: "Obey the order, the emperor is wise and powerful!" “

Zhu Cijiong glanced at the telegram and said with a smile: "Send a report: Who are you, report your name." ”

Soon the other side reported back, this time it was a little more normal, and it was like this: "If you go back to the emperor, Weichen Shi Kefa." “

It seems that there is no problem with this short-distance communication, Zhu Cijiong showed joy at this time, and said with a smile: "Send a report: keep in touch, contact once every hour, and test for twelve hours." “

The other side quickly replied: "Weichen obeys." “

Since there is no problem, Zhu Cijiong is relieved, he is too lazy to guard here, he directly explained Wang Chengen and went back to the study, the next is the line from the capital to Liaodong, it is really a super long distance, because the capital to Guanning City is almost two thousand miles, if it is laid at this speed, then it will take at least three months, Zhu Cijiong naturally does not want to wait so long, he summoned Bi Maokang to discuss it, and finally decided to simply divide the Wuwei army into ten groups and start construction at the same time, and dig along the railway line. It is just right to send the Floor Turning Dragon to the various sections by train.

So, the Wuwei army was divided into ten units, each holding 10,000 prisoners, taking the train, with the earth-turning dragon, and set off with the officials of the Ministry of Industry, and in less than half a month, the telegraph line from Guanning City to the capital was connected by them!

Zhu Cijiong naturally and excitedly ran to the test, this time there was no sycophant on the other side, but it was more terrible than sycophancy, because the telegram over there kept sending non-stop.

"This is Guanning City in Liaodong, Weichen Sun Chengzong."

"The emperor has a good dragon body recently."

"I heard that the emperor is getting married this year."

"Congratulations to the emperor, congratulations to the emperor."

......

Zhu Cijiong looked at the telegrams, his eyes couldn't help but moisten, Sun Chengzong is over seventy, and the problem of nagging has also come up, I don't know how long he can last, but it is recorded in history that in the seventeenth year of Chongzhen, he also led his family to resist the Qing army.

However, now is not the time to feel nostalgic, since there can send so much news over there, it proves that there is no problem with this long-distance communication, and he immediately issued an order, let Li Mingfu lead the Wuwei army with 100,000 prisoners to start laying the telegraph line from the capital to Kaifeng, then Kaifeng to Fengyang, and then Fengyang to Jinling .......

In short, strive to lay all the telegraph lines between the capitals of the three capitals of the Ming Dynasty and the thirteen provinces within this year!