(This chapter is very psychedelic. I can see it in the app, but the author's background shows that it was not posted. It should have been posted yesterday. It was Chapter 518. I set it for free. I don't understand whether it was successfully posted yesterday.)

"Supervis Yang Dian has returned to Beijing to take over the imperial guards. Several camps of imperial guards outside the city are moving to the north of the city." In the weapons experiment field of the royal palace, Di Zhi stood beside Li Xingzhou and told him carefully about the major events that had happened to the imperial guards in the past few days.

"The emperor and the ministers in the court finally decided that several armies would set off from the capital, and Yang Hongzhao, the middle army, was the commander-in-chief, and the general of the auxiliary country, and led the Shenwu Army.

Wei Chaoren was appointed as the General of the Right Guard and led the Lingjie Army. His son Wei Xingping was appointed as the Captain of Zhaowu, led the Northern Army of Guan and became the Right Route Army.

The General of the Left Guard of Yang Wenguang's family led the Wu Lie Army. His son Yang Hu was appointed as the Captain of Zhaowu, and led the Three Border Army (Yang Family Army) to be the Left Army." Di Zhidao, and then said a little lonely: "As for our new army... we are responsible for protecting Kyoto and protecting the imperial city."

This is an opportunity for military men to make achievements, especially for poor generals like Di Zhi, who are from civilians, if they have no military achievements, they will not have a chance.

"General Di doesn't have to be sad. He will definitely have the opportunity to make achievements in the future." Wei Yubai comforted. Now her official position is higher than her younger brother. After all, she followed Li Xingzhou to fight the Jade-faced Fox and had military achievements. In addition, it was natural that she was after Wei Chaoren.

Yan Shen helped Zhao Si move new shells, and turned around and said, "I don't care. As long as I can follow the prince's command, no matter what achievements he has or not." As he said that, he put down the shells in his hand. The shells were still solid, but the shape was completely different from the previous round shells, but were conical heads and cylindrical long shells.

This is the design of the new shell.

The shell design is relatively close to later generations, but Li Xingzhou doesn't know how to change it next. He knows it is a date pit bomb, but that's just a concept. What about the specific data? To be accurate to the tiny changes below the tiny, it can only be obtained by repeated trials over and over again.

And these precious data are the treasures of the royal palace.

For example, the specific formula and proportion data of graphite crucibles, the calcination time and detailed process of tool steel, and various material data.

In the past few days, he asked craftsmen to help him build several steel boxes to store these data.

Over there, Zhao Si and a few new army soldiers who helped loaded up their ammunition and began to adjust their shooting numbers.

Li Xingzhou also brought a few people into the observation room, preparing to see the shooting effect of the new shells.

The new firearm experiment is not a joke, and the risks are much greater than other experiments. Blasting, stray bullets, firefighting and other accidents can easily kill people.

Zhao Si was more meticulous. He first recorded the various metadata of the shooting with his own goose hair notebook, and then recorded the weight of the launching medicine before returning to the observation room. For the sake of experiments, Zhao Si and the craftsmen came up with a new way of ignition.

That is, use a rope to pull the flint fixed in the iron box. The principle is very simple. It is to use a spring to store energy briefly and then release it. Just pull the rope from a distance, ignite the lead, and achieve the launch.

In this way, the shooter is afraid of deafing his ears, and if the shell explodes, it can ensure the personal safety of the gunner far away from the cannon.

This is how exploration of technological cutting-edges is, because it is dark ahead, and researchers cannot guarantee that all their ideas can be realized, but in the process of realizing these ideas, there are often unexpected gains, and these unexpected gains may be worth a thousand gold or even far exceed the expected value of the purpose.

This method will soon become popular in the military, making artillery safer and able to be used in harsh environmental conditions.

On the other side, the rope was pulled out five meters away. The sergeant responsible for firing hid behind the bunker piled up by sandbags, held four fingers and gave a thumbs up to indicate that the preparation was completed.

New weapon experiments, any situation may occur, so be fully prepared.

Zhao Si nodded and ordered the shooting.

The soldier pulled the rope hard, and a fire flashed over there, and the lead was lit. After a while, a loud bang was accompanied by a loud noise. The earth trembled, and the shells whistled out. In an instant, dust flew five hundred meters away, and the earth and stone walls fell halfway.

Without Zhao Si's words, even Li Xingzhou could clearly feel that the shells were much faster than before!

Almost as soon as the cannon fired, the dust on the walls was lifted up, and the sharp howling of the shells cutting through the air was particularly clear and terrifying amid the huge sound of fire. All of these mean that this new shell was faster and more powerful than the previous shells.

The faster the speed, the greater the kinetic energy, and the more terrifying the damage it causes.

Moreover, when the mass remains unchanged, the kinetic energy of the shell increases exponentially with the increase in speed.

Zhao Si came out of the observation room happily and hurried over to check the damage to the shells. Li Xingzhou and the people who were so surprised that they could not speak also followed him.

......

The distance between one mile was not close, and everyone quickly arrived in front of the wall. This wall was a brick and earth wall, built with bricks and glutinous rice water in front and back. The rammed earth in the middle was built according to the specifications of many city walls today. It was two feet long, which was about half a meter thick. The round shells in the past could not be penetrated at all.

But now, the new shell directly penetrates a corner, and the city wall in the upper right corner is broken. The trajectory left by the shell shows that it hits the wall and penetrates the wall diagonally upward, completely shattering the entire wall in the upper right corner.

"Prince, this..." Wei Yubai touched the cylindrical bullet hole left by the shell in amazement. The huge kinetic energy and instantaneous high temperature made the bricks and soil around the bullet hole smooth and tight, and emit an unpleasant odor. She touched it with her fingertips, but it was still warm.

She had seen those cannons that beat Black Mountain bandits to the point of being full of flesh and blood. The flesh and blood body was not worth mentioning in front of it, but this was another shock. Wei Yubai was at the border for a long time, and she understood that this power meant that the pattern of the entire war would change.

In the past, solid cities and border guards built by countries that were busy with people and money, spent a lot of money, manpower and material resources would completely lose their effect, because under this power, no one could withstand any city gate.

No matter how strong a city is, as long as it is constantly bombarded, it is no different from not being there... It is no different from opening the gates. In this way, what is the significance of the city wall?

"This is simply...indestructible!" Wei Yubai's heart was surging.

But Zhao Si, who was carefully checking the damage effect next to him, was still dissatisfied.

He shook his head and said, "Prince, the accuracy is too different. It's only one mile away, and the deviation is still more than one meter..."

Wei Yubai, Yan Shen, Di Zhi and others were confused, and Wei Yubai said in confusion: "Mr. Zhao, such power is no longer stopping."

"But it's still not enough." Zhao Si shook his head and sighed: "It's not enough, it's still much worse, at least the error cannot exceed half a meter. My consciousness is...it can do better, or......" He couldn't think of the words at once.

Lee Sing-cheung patted him on the shoulder and said, "Striving for excellence."

"Yes, the prince is right, just keep striving for excellence!" Zhao Si's eyes lit up: "Maybe the power of the new shell has been higher, but the accuracy has not improved at all. There is such a big deviation in one mile, two, three, ten, and twenty miles away? I'm afraid that it's impossible to fight wherever I want, it's all up to luck."

"What! Twenty miles!" Yan Shen was so shocked that he almost sprained his ankle. In the past, the cannons in the royal palace could also hit three or five miles away, but it was all due to luck. As a result, Zhao Si actually said that he would hit twenty miles away and hit it accurately!

"Mr. Zhao, this...isn't this a joke." Wei Yubai was also stunned.

What does it mean to be twenty miles? Fully armed soldiers need to walk for about an hour (two hours)!

If you are on the flat ground, you can no longer see people. If you can hit such a distance, you will never know how you died until you die.

Zhao Si scratched his head honestly and smiled, "It's very likely, and I think there will always be a solution."

As he said that, he said seriously: "Only now, I have come up with a solution, which is to lengthen the gun barrel. The strength of Wangfu Xiaogang is enough, but the barrel casting method is not good. It requires better strength and longer gun barrels, power and accuracy.

After several days of testing, I found that the shells can be modified. The shells with heavy rear ends are unstable and the accuracy is not good. Just like today's one, the front end is not good either. After the test, the shells with heavy ends in the middle have the best stability and accuracy...

It looks like...it's the best of the date pit!

But more experiments are needed for specific details, so next..."

When Zhao Siyi talked about his shells and discoveries, he started chattering endlessly, just like a few things, but everyone couldn't understand them at all and looked confused, except for Li Xingzhou.

The jujube-shaped shell mentioned by Zhao Si was used even in the 21st century. The jujube-shaped shell has a longer range and higher stability, but it will be less powerful than a cylindrical shell.

Each has its own advantages, but Li Xingzhou himself did not expect that Zhao Si could actually make trouble to this point.

For Wei Yubai, Yan Shen, Di Zhi and others, they did not need to know the principles or understand Zhao Si's pursuit. Just looking at it was already eye-opening and they were so surprised that they couldn't stop.

Li Xingzhou took them to see it, which also gave them a clear understanding of Zhao Si's weapons and understood where the new army would go in the future.

After leaving the test site, several people still couldn't recover.

"I heard that the prince gave Lord Zhao 100,000 taels of silver and asked him to continue his... During the experiment, I actually felt a lot of complaints in my heart." Wei Yubai smiled. She always spoke boldly and bluntly: "There are still three-way places in Guanbei and so many soldiers fighting against other places under difficult conditions, but the prince spent a lot of money in such... strange places."

"Hahahaha!" Li Xingzhou laughed smugly: "This is called sharpening a knife and chopping wood."

"Yes, now I understand. If Lord Zhao's function is achieved, why not be afraid of foreign land, sweeping outside the territory, and regaining his hometown," Wei Yubai also laughed happily.

"Knowledge is power." Li Xingzhou concluded.

Several people made a sound of the test site and went to the yard outside to rest.

It was only slowly that Yan Shen could not stop leisure from the previous shock, and he pulled Di Zhi to fight.

.........

"Your Majesty, you've arrived at the Prince's Mansion in Pingnan." The coachman said respectfully.

Kang Qinwei nodded: "Get out of the car."

The coachman lifted the curtain for him and helped him get out of the car.

Prince Kang looked at the plaque of the Pingnan Prince's Mansion. This time he came because of the emperor's explanation. Some words were inconvenient for the emperor to say, and it was the most suitable for him. After all, it was also considered a family matter.

However, after understanding the meaning of this statement, before leaving, he called his precious daughter Li Qi and Princess Yongming. He couldn't tell why, probably because of intuition.

"Father." The car stopped in the back and the daughter came up wearing a beautiful yellow and white dress. Mingdong was beautiful: "Why did I ask me to come too?"

"What are you saying? Sin Zhou is also your nephew by seniority. Let's walk around more of the family." Prince Kang said, and then said in a low voice: "Besides, hasn't Dad told you that Daddy has told you, the emperor is going to let the prince go to Jiangzhou to think about his mistakes.

Think about where Jiangzhou is. It only takes one day to go to Jiangzhou to Kaiyuan, but it is never the capital. The prefect of Ningjiang is Xingzhou's father-in-law. Isn't it just to send the prince there? Isn't it just under his nose? My daughter is so smart that she should understand what the emperor means.

Princess Yongming stopped talking. Why didn’t she understand? The emperor wanted to be Yi Chu, but it was hard to come directly.

But because of this, she became more and more unhappy when she thought about it. At this time, my father brought her over, just to ask her to apologize to the disciple!

What was wrong with me? It was the reckless man who was rude and rude, and even molested her.

Now that I want to admit my mistake to him, isn’t it just that I have benefited from my nephew’s glory, and it’s simply a waste of power!

Yongming became more and more angry the more he thought about it. When the guards of the Pingnan Prince's Mansion saw his father, he respectfully asked to report.

She followed her father and looked at him and asked, "Where are your prince?"

The royal palace guard replied respectfully: "The prince is in the backyard, so the villain will inform the prince now."

"No, you lead the way. He may have something to do. Let's go find him."

"This..." The guard hesitated and bowed, "Okay, please follow me."

The father asked the servants to bring gifts and then began to enter the palace.

Yongming also began to be curious, because there were too many legends about King Pingnan in the past two years, and countless of them were heard. When she was not here in the capital, she heard people talking about it, but after coming to the capital, she still heard it endlessly.

So she was also very curious about the famous Pingnan Prince's Mansion.

After following the ward, she looked around and didn't miss it.

But slowly, she found that... the royal palace seemed nothing surprising, not even the bustling and prosperous Prince Kang's mansion...
To be continued...