The bright lights of the capital show the prosperity of this world's largest city.

Lingshi Hutong, Linfu Back Garden.

Lin Weiran, wearing black home clothes, did not stay in the study, but took Sun Jixiang to the pavilion to enjoy the moon, but a worry emerged from his eyes.

Although he had planned everything, everything was accompanied by luck, so Zhuge Liang was regretful that he was burned on the upper valley but was hit by heavy rain.

That's right, when he and Sun Jixiang were blowing the cool breeze here tonight, enjoying tea, his eyes couldn't help but look in the northeast direction.

"Dongweng, now the city gate is closed, and the battle situation in Liaodong will only be known tomorrow morning at the earliest!" Sun Jixiang followed Lin Qinran for more than ten years, and directly broke Lin Qinran's thoughts.

Lin Qingran held the tea lid and poured hot tea lightly. He was stunned at first when he heard this, but asked with a smile: "Mr. Sun, if I could only know the military situation tomorrow, how could I be so desperate?"

There is no moon tonight, but four lanterns hung on the pavilion, which dyed the entire pavilion a layer of golden color.

"Even if there are Fei Ge delivering letters from Liaodong and the mansion, it will take tomorrow!" Sun Jixiang also realized that Lin Weiran was indeed abnormal tonight, so he couldn't help but wonder.

Lin Qingran took a sip of tea and said mysteriously: "I just told you that Shihua Mountain is stationed in Wankou Ridge twenty miles away from the Mongolian camp. This fact is what happened only at dusk today!"

"Isn't Fei Ge's delivery of a letter? No, Fei Ge's delivery of a letter is not so fast!" Sun Jixiang first made inferences, and then denied himself authentically.

Although flying pigeons pass letters faster than horses, there are certain risks in flying pigeons, and the carrier pigeons will also choose to rest at night, so the transmission speed should not be so fast.

It was at this moment that a young man hurried over and resolutely it was Lin Wenshu, the son of Lin Dabiao in Changlin Village.

Huh?

Sun Jixiang encountered Lin Wenshu going out of the Lin Mansion several times, and then realized that this young man was probably responsible for heavy tasks, so he couldn't help but look at the juniors in Changlin Village seriously.

Lin Wenshu came to Lin Junran and presented a piece of paper with great respect and said, "Uncle Nineteen, this is a telegram just sent by the Liaodong Army!"

Lin Weiran knew that the war had already come to an end, so he put down the teacup in his hand and reached out to take over this epoch-making paper.

A long time ago, he realized the importance of communication speed, so in many directions conquered by the Joint Research Institute, he also handed over the field of wireless telegraph to the Joint Research Institute for research.

However, no technology can be achieved overnight, especially Lin Weiran wants to join forces with the Research Institute to skip the cable telegram directly, so its difficulty has reached several levels.

The initial basic theory of radio telegraph originated from the law of electromagnetic induction, which revealed the interconnection between electricity and magnetic phenomena, and then proved that the existence of electromagnetic waves laid the basic theoretical system of radio communication.

Lin Weiran first gave this theoretical basis for radio communication, and then set the direction of the development device as the spark transmitter invented by Popov, and then handed over to the Joint Research Institute to overcome these layers of difficulties.

This action is like throwing out a theoretical concept of "space express", and then the corresponding team tries to launch the object-carrying rocket, and then the rocket arrives at the corresponding location for landing.

After obtaining Lin Weiran's mission, the Joint Research Institute also spent a lot of manpower and financial resources to research this radio and telegraph.

The principle of wireless telegraph is to use spark discharge to generate high-frequency electromagnetic oscillation, thereby emitting electromagnetic waves through the antenna, and then sending signals representing different meanings through changes in electromagnetic waves.

Although this theory sounds simple, it is actually a very complicated thing to get this wireless telegraph device out.

After all, this involves a field that the Chinese nation has never explored, among which the wireless telegraph device also involves batteries and capacitors, which resolutely has become two major problems that have plagued the United Research Institute for many years.

The first major problem of wireless telegraph is the battery, which is not only the origin of electricity but also the basis of electromagnetic waves.

However, Lin Weiran immersed a zinc plate and a tin plate in salt water. The Joint Research Institute found that an electric current was passed through the wire connecting the two metals, so he pushed open the door of the battery.

The disadvantages of this simple and crude primitive battery are obvious. The voltage it generates cannot even kill a fly, so it naturally cannot meet the telegram's power generation voltage needs.

The United Research Institute absorbs the most exploratory young talents in China. They are tirelessly improving and optimizing the original batteries, and then working towards the direction of increasing voltage.

After a lot of experiments, they quickly realized that the principle of generating electric current was not provided by a certain substance, but a chemical reaction produced by zinc plates, tin plates and brine.

In view of this, while exploring the power theory system, we inevitably have a lot of fantasy ideas, and then continue to try through experiments.

After many efforts, they finally found the most suitable dilute sulfuric acid as the electrolyte, which greatly enhanced the chemical reaction and obtained sufficient voltage through intense chemical reactions.

It is just that simple power generation is uncontrollable, so these electricity needs a capacity to store it and then use it reasonably.

Obviously, while solving a difficult problem, it often faces new problems.

After solving the battery problem, the United Research Institute faces the difficulty of how to store electricity.

Lin Weiran once again played the role of the omniscient God, providing theoretical support to the United Research Institute, and put forward the concept of capacitors, namely, "two conductors close to each other, with a layer of non-conductive insulating medium in the middle, which constitutes

capacitors”.

With this theoretical support, although there was no Leiden bottle in this era, capacitors did not originally require specific devices of Leiden bottles. As long as two metal plates are separated by a layer of insulator, capacitors can be made into.

It is precisely this way that a capacitor belonging to the Joint Research Institute came into being, which solved the problem of electric energy storage in one fell swoop, and then allowed to discharge sparks continuously, thereby releasing electromagnetic waves of unique frequency to the surroundings.

After these two major problems were solved, the changes in the transmission frequency and how to decipher the radio waves were not difficult, so the radio telegram belonging to the Joint Research Institute came into being.

As the transmitting device of the wireless telegraph has been successfully solved, the receiving device is also put on the agenda.

Since the electromagnetic waves in this era were made single by the joint business group, there is no need to consider too much the mutual interference of radio waves, but only how to better receive electromagnetic waves.

After a lot of experiments, the Joint Research Institute finally found a method to capture electromagnetic waves, and then launched the Joint Ore Radio Wave Receiver.

By contacting a point of the ore with a needle tip, adjusting its contact point on the ore, you can find a contact point with a semiconductor effect, and use the semiconductor effect at this point to detect the amplitude modulated radio waves, thereby obtaining

Audio signal.

As for how to prompt that there are radio waves around it, it is naturally not a problem for the United Research Institute. A device that converts electromagnetic waves into sound signals by capturing electromagnetic waves was soon released.

The wireless telegraph devices of the United Research Institute are similar to many electronic products. First-generation products are often accompanied by many problems, but they have taken years to continuously optimize.

The radio telegraph from the Joint Research Institute encountered problems such as climate, distance, fine copper wire and signal interference respectively. They continued to optimize and upgrade the problems faced in actual application.

Nowadays, wireless telegraph technology is very mature, but it can shoulder the function of disseminating information.

In fact, during the introduction of the radio telegraph, Lin Weiran mainly provided some theoretical basis, and many things were completed by the Joint Research Institute, which was also his original intention of founding the Joint Research Institute.

After all, Lin Weiran hopes to become the leader who leads China to the top of the world, rather than a technical gull who is studying science and technology.

Without Lin Shiran's in-depth participation, the advent of wireless telegraph was delayed by several years, but it also allowed the United Research Institute to stand alone and allowed the United Business Group to obtain hundreds of top talents in this field.

From another perspective, Lin Weiran has undoubtedly made a good deal with the joint business group behind him, and he already has the technology and talents of wireless telegraph.

Given the importance of wireless telegraph, a confidentiality system was implemented since the beginning of development, and then both testing and commercial use were used by internal personnel of the joint business group.

Telegraphers like the wireless telegraph are all from the students of the United Academy. They are screened high-quality students and have extremely high loyalty.

Telegraphers undoubtedly need excellent memory so that they can quickly send or interpret the meaning of those signals from specific codebooks.

The wireless telegraph device was first commercially used within the joint business group. After a year of successful operation, Lin Weiran chose to apply this technology to military operations.

When people didn't know what radio telegraph was, Lin Weiran had already completed careful deployment and quietly built a radio telegraph communication network.

That's why when Altan led a 100,000 army southward, Lin Xuran had quietly built a radio communication network in the capital and Jiubian, and had an epoch-making military ace.

Thanks to the emergence of wireless telegraph technology, the capital city and Jiubian seem to be more closely linked.

In the Mongolian camp, 20,000 cavalrymen were lying tiredly in the camp resting after a day of crossing mountains and ridges.

Boom!

After a burst of inexplicable cannons, the sound of mountain torrents suddenly came to the west, and the turbulent rivers surged from the west like storm waves.

"How come there will be flash torrents here?"

"Hurry, run away quickly, run to the mountain!"

"This is a low-lying land, this is the conspiracy of the Ming army!"

...

This camp was originally located in the river channel in summer, but the river channel now looks like a dragon, opening its bloody mouth to swallow the cavalry in the camp.

Although many Mongolian cavalry wanted to escape to the high ground, they could not escape the speed of the mountain torrent with their legs alone, and were quickly swept away by the flood.

Some people fled to the high ground with torches in their hands. They thought they had successfully escaped, but the torch in one of them accidentally fell off in a dry grass and accidentally lit a wildfire.

This place is a place that is rarely visited, but the wildfires and the path are burned down, making it even more difficult to find a way to escape here.

ah……

Most of the 20,000 people led by Amugulen were not water-free, resulting in more than half of the people being taken away by mountain torrents, and those who escaped to the high ground were facing wildfires.

When facing life and death, their ugly side is easily exposed. Some people take advantage of a favorable survival position, but they draw their swords toward each other.

"Damn it, damn Ming army, I must pay your Han people blood debts and blood, and that jade-faced fox will die without a complete corpse!" Amugulen escaped from the other side of the river by chance, but just drank a stomach full of water, which seemed very good.

cursed angrily.

When they were all wary of the valley ahead that was easy to defend and difficult to attack, who would have thought that the real danger was around them, and the Ming army actually used the method of flooding.

Even more unexpectedly, his stupid subordinates actually ignited the forest opposite, causing his subordinates who fled to the other side to die for a lifetime.

"You shouldn't be insulting Master Lin!"

Suddenly a light appeared from above, and a young man in light armor looked coldly at Amugulen Road climbing up from the river.

When Amugulen saw the young general who suddenly appeared, he never expected that a Ming army was ambushed in the river channel here. He couldn't help but stare at him and said, "Who are you?"

He crawled up from the river by killing jade, and cried to the young general, saying, "General Yu, I am willing to buy my life for 50,000 taels, please let the villain go!"

"Haha... Your name is already in the face of life and death. Even if a god comes, he can't save you!" Yu Zigao looked coldly at the backless jade stone, but waved his hand and said.

puff!

The personal soldiers behind him were not ruthless at all to the thief who had already been in the sight of their Yu family army, and seemed to poke the heart mercilessly.

When he stared at the jade stone's eyes, he finally realized that the collapsed wall was a conspiracy from beginning to end. Fortunately, he always thought he had found a mountain of gold.

"This general is Yu Zigao, I'll send you to the west!" Yu Zigao saw Amu Gulen's panic in his eyes, and responded coldly.

No……

Amugu looked at the machete that was swinging down and looked extremely frightened.

puff!

Yu Zigao did not have any slight slightestness. He waved the sharp blade made in Foshan in his hand and cut off the head of the Mongolian warrior Amu Gulan.

Amugulen's head flew into the torrent behind him, but his eyes were wide open, looking very unwilling.

At this point, the first Mongolian warrior Amugulen was killed, and the 20,000 Mongolian cavalry he led was almost wiped out.
Chapter completed!