During the Three Kingdoms period, this kind of communication platform for thousands of miles of communication was absolutely unprecedented. Han Zhan traveled to the end of the Eastern Han Dynasty and saw hundreds of time travels, although the time-travelers had many dazzling inventions, but no one had ever thought of using this simple and easy way of communication to get in touch with thousands of miles away.

But for the sake of secrecy, Han Zhan also specially told Guo Jia: "Fengxiao, if someone asks, you say that you are repairing the beacon tower, and you must not leak the news." ”

"My subordinates understand." Guo Jia continued: "But it takes a long time to build the high platform, and if my subordinates have been supervising the work, I am afraid that they will not have time to train those bannermen who transmit soldiers. ”

From Guo Jia's words, Han Zhan heard that he wanted to arrange another assistant for him, and after a little thought, he said to him: "Fengxiao, what do you think of Tian Toyoda Yuanhao?" ”

"Tian Yuanhao?"

"That's right, it's Tian Yuanhao." Han Zhan felt that it would be a waste of talent to put too many advisers in Yedu, so he planned to send them out as officials one after another. And this time the construction of the communication platform is undoubtedly the best opportunity: "Ben Hou felt that he was a little too condescending to stay in Yedu, and wanted him to go to Qingzhou to serve as the chief historian." ”

"The lord's arrangement is very well thought out." Regarding Han Zhan's decision, Guo Jia immediately agreed: "Since Zang Hong took the position of Qingzhou Assassin, although he has tried his best, after all, he is weak, and Yang Qi and others in Beihai are restrained, it is really not easy for him to do anything." If Tian Yuanhao serves as the governor of Qingzhou, it must be a great help for Zang Tingshi to govern Qingzhou. ”

After arranging Tian Feng's whereabouts, Guo Jia shifted the topic to the training of signal soldiers: "My lord, a signal platform thousands of miles away needs 3,000 to 5,000 soldiers. If you want every soldier to understand the flag language, I am afraid that it will not be possible to do it overnight. ”

"Fengxiao, Ben Hou thinks that the soldiers don't need to understand the flag language, and the work they have to do is just to truthfully pass on the flag language they see to the next high platform." Han Zhan explained to Guo Jia: "For each sending point, it is enough to arrange one or two compilers. They were responsible for compiling the information into a flag, which was then sent out by the signal soldiers. ”

"What the lord said is extremely true," Guo Jia pondered Han Zhan's words, and felt that it was still very reasonable, so he nodded and said: "If the number of people who understand the flag language can be controlled within a certain range, then even if someone attacks the communication platform and captures the signal soldiers in the future, they will not be able to know the content of our communication." ”

Speaking of the content of the communication, Han Zhan also felt that the plan he proposed was not perfect enough, and added: "In order to facilitate the compilation of information, you can use four numbers instead of one word, what is the specific word, and after receiving the information, you can go to the "Book of Songs" according to the number to find out, so that you can know what the other party's message says." ”

"If it is according to what the lord said, the signal soldiers send a set of numbers, and after we receive the information, we can find the corresponding words in the "Book of Songs" according to the numbers, and we can understand what the other party is saying." Guo Jia nodded, and then asked, "Then what kind of flag should the signal soldiers use?" ”

"All the signal soldiers use two signal flags, one red and one green." Han Zhan replied: "The flag is one foot square, so as to facilitate the signal soldiers to send signals. ”

Guo Jia couldn't help but be a little stunned when he heard that the signal soldiers were actually two small flags one foot square, according to his thoughts, when the signal soldiers were interrogated on the high platform, they must have used red flags, so that they could be seen clearly from afar, but who knew that it was a new type of flag.

"Fengxiao, in order to make it easier for those compilers to edit the information, Ben Hou just figured out a set of numbers, and I just wrote it for you to see." Han Zhan said, picked up a pen and paper and wrote "1, 2, 3...... 9, 0".

Guo Jia tilted his head to look at the Arabic numerals written by Han Zhan on the paper, and asked in surprise: "Lord, what are you writing here, why don't your subordinates know each other at all?" ”

Han Zhan thought to himself, it's right if you don't know each other. This Arabic numeral was invented by the ancient Indians in the fifth century A.D. and did not begin to be used in our country until the beginning of the twentieth century. Now, it will be another 300 years before the Indians invented these numbers, and no one in the whole world knows them except themselves.

Since the Indians have not yet invented these figures, he naturally takes them for himself without blushing. "Fengxiao, this is a set of numbers from Benhou Xinxiang, which is convenient for compiling information." Speaking, he also wrote Chinese next to the Arabic numerals, explaining to Guo Jia, "This is the text corresponding to the number." ”

Guo Jia stared at Han Zhan writing Arabic numerals and Chinese numbers for a long time, and then nodded slowly and said, "The Lord is really smart, he can actually come up with such exquisite numbers. This makes it much easier to compile the information. ”

Although Han Zhan made the Arabic numerals, which were popular in later generations, come out two hundred years earlier, he still felt a heat on his face when he heard Guo Jia's praise of himself. He waved his hand at Guo Jia and said, "Fengxiao, you should start this matter immediately." If you need any manpower, Jizhou's civil and military, soldiers and horses, money and food are at your disposal. ”

"Subordinates obey." Guo Jia hurriedly replied: "My subordinates will go back to this matter, and tomorrow we will post a notice to recruit migrant workers in the city to build a high platform, and mobilize money and food, and prepare to start construction as soon as possible." ”

Looking at the back of Guo Jia's departure, Han Zhan's heart was still quite proud, since the previous traversers had not made this high-level platform for thousands of miles of communication, then his actions today will definitely set a precedent and set an example for future generations of time-travelers, so that they can also learn from their own example in ancient times, and make a series of high-level communication platforms to facilitate the transmission of information in various places.

Who knew that not long after Guo Jia left, Fu Zhi hurriedly walked in from outside. He asked Han Zhan a little anxiously: "Lord, I heard that you plan to order the military to build a beacon tower in Jizhou, I don't know if there is such a thing?" ”

"Yes," Han Zhan didn't want to spread the news about Gaotai, so he made a storm in the city too early, so he replied casually: "Don't look at the possibility that Yedu is invaded by foreign enemies here, but the awareness of being prepared for danger in times of peace is still indispensable." Therefore, I ordered Fengxiao to build a high platform, so as to prevent foreign enemies in the future, lest the enemy suddenly come to the city and take us by surprise. ”

After understanding Han Zhan's purpose of repairing the high platform, Fu Zhi took the initiative to ask: "If the lord does not give up, his subordinates are willing to assist the military division to jointly build this beacon tower." ”

Han Zhan was worried that Guo Jia was lacking enough manpower to help when he was building a large number of buildings, and at this moment, when he heard that Fu Zhi took the initiative to ask for help, he really wanted to fall asleep, so someone would send him a pillow, so naturally there was no reason not to agree: "Fu Jian Jun, since you are willing to assist the military advisor and build the beacon tower outside the city, then Ben Hou will appoint you as the deputy of the military advisor to jointly supervise the construction of the beacon tower." ”

"Please rest assured, my lord." Seeing that Han Zhan agreed to his request so easily, he couldn't help but be overjoyed, and hurriedly fell to the ground: "My subordinates will definitely assist the military advisor to build the beacon tower outside the city, and never disappoint the expectations of the lord." ”