Compared with the destruction of the Jin Kingdom and Xixia, the annexation of Goryeo is not worthy of special mention, but it is destined to be recorded in the annals of history.
Not only will it be recorded in the history of the Ming Dynasty, but it will also be written into the history of human civilization.
Because it has something to do with the telegraph!
Last winter, Zhu Guoxiang brought his family to Luoyang and started developing a telegraph machine before the Chinese New Year.
His research and development process is particularly unscientific.
The telegraph code was already designed without even having a single part of the telegraph machine.
Zhu Guoxiang had never learned Morse code, but he knew that it was a combination of long and short signals. So he simply abandoned the English letters and only used long and short signals to express numbers and punctuation.
Each commonly used Chinese character consists of four numbers.
Even the date of the rhyme was created, using the latest version of "Daming Zhengyun" to replace the specific date of dispatch.
The design work of converting code to Chinese characters was relatively trivial, and was left to the wives of his subordinates. Shen Yourong, Li Qingzhao, and Wen Xiaomei were the main force.
Zhu Guoxiang thought that wired telegraphy should be very simple, but he discovered that there were many problems when he actually started working on it.
The first wired telegraph prototype was built in just a few days after all the materials were prepared.
However, the effective transmission distance is only a few meters.
Using wires to propagate signals can only travel a few meters!
Because the power of Zhu Guoxiang's telegraph machine was too low, it was not called a battery at all, but the most primitive volt pile.
After many improvements, although the transmission distance was greatly increased, the effect was still not satisfactory to Zhu Guoxiang.
After discussing with his son and student assistants, Zhu Guoxiang replaced the electric pile with a hand-operated generator. After the Lantern Festival, he simply stopped doing wired telegraphy and went straight to wireless telegraphy. He knew that radio was transmitted through electromagnetic waves.
The first wireless telegraph prototype had an effective transmission distance of about 200 meters.
A few months later, during the Dragon Boat Festival, which was the time of the Goryeo military coup, the sixth wireless telegraph prototype came out.
Zhu Guoxiang called his son over, and the first thing he said was: "The wireless telegraph has been completed."
"Wireless telegram?" Zhu Ming was extremely shocked.
Zhu Guoxiang said helplessly: "But the telegram can only be sent as far as Baima Temple Town."
Ju Ming laughed and said: "It's only thirty miles. But it's still a good start. Dean Zhu, please keep up the good work."
In half a year, Zhu Guoxiang was able to build such a beggar's version of the machine, which is already very rare.
There is huge room for continued improvement.
Zhu Guoxiang said: "The students and I have racked our brains and tried every possible way. It will be difficult to improve in a short period of time. Now there are two powerful ways to achieve miracles."
"What can we do?" Zhu Ming asked.
Zhu Guoxiang said: "First, build large-scale transmitting and receiving antennas; second, establish transfer stations in or near each county."
"How big is the antenna?" Zhu Ming asked.
Zhu Guoxiang said: "The Tooth Relic Pagoda at Luoyang Tianwang Temple is tens of meters high. Antennas can be erected along the Pagoda. Many such antennas can be built along the way. As for the transfer station, it can also help relay signals. Finally, It takes two to three hundred miles to build one."
In another time and space, humans used wireless telegraphy for the first time to send information across the Atlantic Ocean. This was achieved by building huge antennas - so powerful that bricks flew!
As for the transfer station Zhu Guoxiang mentioned, it can also be called a relay station. The main equipment is a relay.
"Do the two methods you mentioned really work?" Zhu Ming asked.
Zhu Guoxiang said: "You can give it a try."
Ju Ming said: "Then give it a try."
If the emperor and the emperor want to do something, they can mobilize all resources to do it.
A few days later, a group of soldiers and craftsmen rushed into Tennoji Temple in a furious manner.
Coming again?
The monks were shocked, thinking that they had committed another major crime.
Zen Master Zonggao came out to greet him in person: "The poor monk has seen His Highness the King of Min. I wonder what important matters His Highness has come to visit?"
Zhu Wenzhu put his hands together and returned the gift: "Zen master, don't panic, this matter has nothing to do with your temple. If the experiment goes well, the imperial court will send manpower to stay at Tianwang Temple to guard and maintain the Tooth Relic Pagoda."
Once he heard that they were not here to arrest anyone, Zen Master Zonggao stopped asking any more questions.
He found that Zhu Wenzhu was not in the mood to chat, so he asked the monks to disperse, leaving him alone to accompany him throughout the process.
The Tianwang Temple in Luoyang is under construction, and the Xiangguo Temple in Kaifeng is also under construction.
Zhang Congdao, who had exchanged birth dates with the eldest princess (Zhu Guoxiang's third daughter), was heading to Kaifeng with a group of craftsmen.
Twenty days later, large antennas were built in Luoyang, Kaifeng, and Xingze, and a relay station was built in Xingze in the middle.
Luoyang Imperial Palace.
Ju Ming watched the telegraph machine punching holes in the paper tape and couldn't help but ask: "Why doesn't this thing beep? It's different from what I remember."
Zhu Guoxiang explained: "I haven't figured out how to produce sound through electric current yet."
"Not only is this a beggar's version, it's also a semi-finished product," Ju Ming joked. "There is no display light and no sound. How can it be turned on and guarded 24 hours a day? It's okay to have people guarding it all the time, but you
It is a hand crank to generate electricity, and after using it for a while, it has to be cranked again. This has turned the telegraph operator into a manual job. Why not install a battery?"
Zhu Guoxiang said: "The voltage of the battery invented before is too low, and it is not even as good as hand cranking to generate electricity. Not to mention wireless telegraphy, even wired telegraphy cannot meet the power requirement."
"Let's build a hydroelectric generator. Is this difficult?" Zhu Ming asked.
Zhu Guoxiang said: "The principle is similar to that of hand-cranked power generation, but it still needs constant experimental improvement. There are so many relay stations across the country that we cannot have hydroelectric power generation everywhere. I plan to ask telegraph operators from various places to agree on a fixed section in the morning, noon and evening every day.
Time, stay there and turn on the phone to send and receive telegrams."
Ju Ming thought about it carefully: "Let's do this. Build a hydroelectric generator in all provincial capital cities across the country. If the provincial capital city is not next to a river, build it in the nearest city. In cities at the prefectural level, build one in every place.
A telegraph machine."
"Okay," Zhu Guoxiang said, "those hydroelectric generators don't need to be too big, they just need to be able to meet the needs of the telegraph machine. There is no need to build a dam, you can build a water tower, use animal power to lift the water, and then release the water from the water tower intermittently
Sexual power generation. In fact, if we continue to improve the hand-operated generator, it should be able to meet the demand. After all, during the Anti-Japanese War... you know."
Zhu Ming nodded and said: "You can do this in the early stage, and then develop slowly in the future."
The telegraph operator was one of Zhu Guoxiang's students. He suddenly turned around and said, "Your Majesty, please write a random sentence."
Zhu Ming wrote: "The fortunes of the Ming Dynasty are prosperous."
The telegraph operator sent these six words and immediately bowed and resigned. A new telegraph operator came in from outside who didn't know what he had sent.
Then it became quiet. It is estimated that the Kaifeng side received the signal and was busy translating it into Chinese characters.
The telegraph operator in the palace, fearing that the power would be insufficient, had been frantically cranking the electricity by hand.
After a while, the telegraph machine began to punch holes in the paper tape.
The telegraph operator flipped through the codes of commonly used characters and translated them into Chinese characters one by one. He stood up and said: "Your Majesty, His Majesty the Emperor, the message from Kaifeng is 'The Ming Dynasty has prosperous fortunes. It has been received'."
Zhu Guoxiang smiled and said: "Successful."
Ju Ming was in a daze.
Is this how the wireless telegraph transmission between Luoyang and Kaifeng was accomplished?
It only took more than half a year since Zhu Guoxiang began to develop the telegraph machine.
As luck would have it, half a month later, Liaoyang sent an urgent document. It claimed that there was a coup by Goryeo warriors, and Liaoning planned to send troops, and requested the emperor's approval.
Ju Ming was not in a hurry to reply, but sent all Zhu Guoxiang's students out.
Let them bring various materials, make repeaters on the ship, and deploy them all the way from Kaifeng to Shandong. Then they will also deploy repeaters in Lushun to extend the telegraph system to Liaoyang and Pyongyang.
It is too easy to destroy Goryeo. You can send troops at any time.
Ju Ming wanted to get addicted to high technology and issue military orders to the front line in Luoyang!
Afraid of poor cross-sea signal, Ju Ming also asked his students and craftsmen to set up large antennas in Dengzhou and Lushun - the antennas were placed on lighthouses, so no additional buildings were needed.
There are several big cities along the way that also have large antennas.
…
The current political envoy to the left in Liaoning is Fang Tingshi.
To be continued...