Xu Liang humiliated his old enemy Lu Chengyuan for a while, drove him back to Guyuan Prefecture, and ignored the prefect Zhang Fengqi at the meeting. I felt that it wouldn't be long before the entire Ming court would know Xu Liang's attitude, so he was in a good mood, returned to Xu's mansion by the West City Gate, and asked someone to write a letter of impeachment against Lu Chengyuan overnight and send it to Beijing.

Within a few days, the entire Pingliang Mansion knew about these things, and there was an endless stream of county officials who came to Pingliang to visit Xu Liang. The officials finally saw clearly, in Pingliang, Xu Liang, who had a heavy army, was the real boss, as for Zhang Fengqi, the prefect of Pingliang, hehe, didn't you see that Zhang Fengqi couldn't even mobilize a team of soldiers defending the city in Pingliang City?

This matter spread so quickly that even Sun Yuanhua, a member of the Ministry of War, who came to resign to Xu Liang, heard about it.

In Xu's mansion, Sun Langzhong tactfully exhorted Xu Liang to respect the leader and keep a low profile. Xu Liang scoffed.

However, Sun Langzhong's attitude made Xu Liang look down on him. Thinking that Sun Langzhong was engaged in artillery, Xu Liang happily pulled him to a room in Xu Liang's backyard, and let Sun Yuanhua observe the Buddha Lang machine cannon that was searched from the secret room of the Han Wangfu in Zhenyuan City.

Sun Langzhong's eyes lit up, he couldn't put down the artillery, his hands touched the body of the cannon, as if he was about to caress the top girl in the kiln, and his fiery eyes made Xu Liang wonder if there was a problem with Sun Langzhong's orientation.

"Can't be wrong, it's this medium-sized Furlong machine cannon!" Sun Langzhong muttered to himself, his saliva was about to flow out, and he looked at Xu Liang excitedly and asked, "Lord Xu, where did you get this artillery?" This type of Franc machine is rare, and Xia Guan only heard the teacher talk about its construction model when he was studying in Songjiang County. I haven't seen it before, so I can't imagine it's like this......"

Sun Langzhong chattered endlessly, muttering to himself, and his focused expression was like Xu Liang's law classmates in his previous life rolling their eyes and reciting the legal texts.

"Lord Sun has also seen a model of this cannon?" Xu Liang didn't expect that there were still people in the Ming Dynasty who specialized in artillery, and they also made models! Surprised to ask, "Dare to ask who your teacher is?" ”

Sun Langzhong suddenly looked adoring. Said: "The teacher of the lower officials is the current imperial teacher, Xu Guangqi, a scholar of the Hanlin Academy. ”

Xu Liang let out an "ah" and nodded, "Originally, Master Sun was still a disciple of Master Xu, and he was disrespectful. ”

Sun Langzhong's face was suddenly full of excitement. He happily asked, "Lord Xu also recognizes the teacher?" ”

"Uh......" Xu Liang choked and said curtly: "I have heard a little." ”

Sun Langzhong looked at Xu Liang, his eyes were very hurt, and he said bluntly: "You don't know the teacher, and you haven't heard of the teacher. Right? ”

Xu Liang was suddenly embarrassed.

People who do learning are so annoying, they love everything more seriously, Xu Liang's history class in his previous life is regarded as a make-up class, and it is really common not to know who Xu Guangqi is. What does Xiao Sun's injured eyes mean? Is his teacher famous? I Xu Liang must know?!

What logic!

Xu Liang didn't want to get entangled with Sun Langzhong on the stupid issue of whether he knew Xu Guangqi. He asked Sun Langzhong for other important things to ask.

"Master Sun, this official has something to ask for." Xu Liang said.

"Lord Xu is too polite." Sun Langzhong is an intellectual, thin-skinned, and Xu Liang uses the word for help. Sun Langzhong's face was a little hot, and he immediately left Xu Liang behind him that he didn't know his teacher.

"Since the first battle to recover Pingliang, this official has only now known the power of artillery." Xu Liang sighed. "It's just that the power of the artillery is great, but the accuracy is a little worse, and if the ten cannons go out, nine of the cannons will miss! I wonder if Master Sun can do anything to make the artillery more accurate? ”

Speaking of this, Xu Liang was angry, and Sima Qiu, the battalion owner of the artillery battalion, begged. I can shoot accurately, and I am the kind of person who will. People who can't teach others ask him to train a few more gunners every time. Sima Qiudao said that the qualifications of the people below are not good!

Sun Langzhong pondered, stepped forward and pointed to the two parts on the artillery and said: "My lord, if you want the cannonball to hit accurately, you must make good use of this illuminator and crosshair, and form a line with the target at three points, and sometimes you have to consider the distance and the strength of the wind. Also, the amount of gunpowder, whether it is uniform or not, has a great impact on the accuracy of the artillery. ”

Xu Liang nodded again and again, secretly thinking that what Sun Langzhong said was basically the same as he expected.

Sun Langzhong couldn't help but be surprised when he saw that Xu Liang could understand it immediately, and explained: "Many people don't understand why the accuracy of this artillery still needs to consider the distance, in fact, the distance is basically not considered when firing at close range, but it is not good if it is far away." Well...... Adults should know that when a cannonball is fired, it will always fall. As he spoke, Sun Langzhong picked up a stone, threw it forward, and said, "Just like this stone, when you go out, it is straight, and when you are far away, it falls down." ”

Xu Liang nodded again and said, "Well, it's like a parabola." ”

"Uh...... Parabola? Sun Langzhong listened, smiled, and said: "Lord Xu's statement is also very tight, parabolic line, distraction? Well, yes, it's a parabola indeed. ”

Xu Liang laughed, thinking of something else when he thought of the parabola, so he stepped forward to take paper and pen, spread them on the table, and said to Sun Langzhong as if playfully: "Actually, the official's view of cannonballs is slightly different from that of Lord Sun. As he spoke, Xu Liang drew a sketch on the white paper, pointed to the two arrows on it and said: "Lord Sun, please see, when this cannonball flies out, it is like receiving a momentary thrust from behind, and it is flying forward while being subjected to a natural downward gravitational force, and the cannonball's flight trajectory under the combined action of these two forces is like this parabolic shape." ”

Sun Langzhong stepped forward and looked at it, frowned and pointed to the arrow drawn downward on the cannonball and asked, "The force behind the butt of the cannonball that Lord Xu said can be understood, but what kind of force is this downward?" What is Gravity? ”

Xu Liang blurted out, "Gravity is the attraction of the earth, and it has a specific value of gravitational acceleration......"

"What is Earth? And what is that gravitational acceleration? Sun Langzhong asked urgently, like a curious baby.

"Uh......" Xu Liang choked suddenly, and then he remembered that this Master Sun was just an official of the Ming Dynasty, and he didn't know much about the theoretical formulas that he was accustomed to in physics textbooks in his previous life. If you want to explain it to him in detail, I don't know how much tongue to waste, Xu Liang waved his hand irresponsibly and said: "You don't care so much, it's like that anyway." ”

"Lord Xu is erudite and talented, which is admired by the lower officials." Sun Langzhong was stunned and said with a smile. He lowered his head again, stared at the arrow on the paper with a twisted brow, pondered for a while, and said: "What Lord Xu said, Xiaguan has never heard anyone say it, presumably my teacher, Lord Xu Guangqi, will understand something, and Xiaguan should consult his teacher after returning to Beijing." Sun Yuanhua pointed to the child cannon again, and said to Xu Liang: "Lord Xu, can you let the lower officials take this cannon back to Beijing and let the teacher take a look?" ”

When Xu Liang heard this, he rushed to the barrel of the cannon with an arrow, blocked in front of Sun Langzhong, and waved his hand again and again: "This is not good." Familiar to cooked, things can't be taken indiscriminately! If your teacher wants to see it, you can ask him to come to Pingliang to see it, this cannon is a secret passage that I have managed to get from others...... Well, snatched from someone else's hands, it's so precious, I can't take it away from you! ”

Seeing this, Sun Yuanhua sneered, and saw that Xu Liang really had no intention of giving in, so he gave up.

Xu Liang's eyes rolled, and he put on a smile and said, "However, if Lord Sun can provide some other things that the official needs, this artillery will be given to you." ”

"Huh? What is it? Sun Yuanhua exclaimed.

Xu Liang stepped forward and whispered something. Sun Langzhong's eyes widened suddenly, he looked at Xu Liang in surprise, and exclaimed: "Lord Xu, this thing can only be found in the Gunpowder Division of the War Bureau, how can I have this thing in a small Ministry of War?" Inquire privately, this is going to kill your head! After that, Sun Langzhong felt uncomfortable, and he didn't dare to stay in Xu's Mansion anymore, so he left in panic, and Xu Liang couldn't stop shouting after him.

Looking at Sun Yuanhua's back and running away, Xu Liang shook his head with a wry smile and muttered: "Isn't it just asking for a gunpowder formula, as for being scared like this!" ”

Suddenly, I heard a voice behind me.

"Are you looking for a gunpowder recipe?"

Xu Liangcha heard this sudden voice, he was frightened, turned around suddenly, and saw Lou Xian'er with a few circles of white bandages wrapped around his left arm, standing five steps behind him, and asked with a smile.

Xu Liang suddenly shouted angrily: "Please, can you walk with a little noise next time?" People are scary, scary to death! ”

Lou Xian'er grinned and asked again, "Are you looking for a gunpowder formula?" ”

Xu Liang glared at her, slumped his shoulders, and said dejectedly: "Yes, I originally thought that there would be a military department, but I didn't even know about Sun Langzhong." ”

Lou Xian'er smiled even more cheerfully, she looked at Xu Liang, blinked her big smart eyes and smiled: "On the way to escape, I passed by a Guandi Temple, and there are things buried in the temple, and when I go back and dig it out and give it to you, you will have a gunpowder formula." (To be continued)