Catapult, a vehicle used by the ancient army to shoot stones against the enemy. The car takes the big wood as the bed, the lower four wheels, the neutral single wood, the first end of the stone with the kiln, and the person pulls it and throws it. With its stone sound, it is also known as a thunderbolt or thunderbolt.

As early as the Spring and Autumn Period and the Warring States Period, this car has been introduced.

Wei Guoxin Lingjun has a secret book called "Lu Gong Secret Record", the above all kinds of siege equipment and conquest weapons, but unfortunately when Qin unified the six countries, he was in exile and his whereabouts are unknown.

Regardless of whether this "Lu Gong Secret Record" was destroyed in the war or not, there is still a book that records most of the information of the "Lu Gong Secret Record", that is, the "Taiping Heavenly Book" and the "Hundred Battles Strategy".

"A Hundred Battles" is mainly based on attacking cities and conquering cities, military planning, tactics and battle formations, with all kinds of whimsical plans, as well as powerful siege equipment, but this book is now in the hands of Guo Jia.

Since Guo Jia got this book, he has been reading it hard every night, just out of interest, and he only glanced at the part of the equipment that he didn't dare to be interested in, otherwise Jiang Zhe said it, and Guo Jia was as confused as a drama Zhicai.

Catapult, known as the ancient 'nuclear bomb', set up a shaft horizontally on a wooden shelf, the middle of the shaft is worn with a long wooden pole with a tough surname to throw the rod to the left, one end of the rod is knotted with a leather bag connected with a rope, and the other end is knotted with dozens to more than a hundred ropes, listen to the command to pull hard together, and use the principle of lever and centrifugal force to throw the boulder.

Of course, it doesn't have to be rocks, but it can also throw fireballs and other things.

During the Battle of Guandu, Cao Jun used a stone-throwing truck to destroy Yuan Shaojun's turret. Because the stone projectiles emitted had a sound in the air, it was called a "thunderbolt" at the time.

Of course, this is talking about the finished catapult, not Jiang Zhe's current fifteen test models.

For more than ten days, Gongsun Zhan suddenly saw more than ten very strange things on the high slope in the distance, and looked at it from afar with his soldiers in the camp gate with surprise and curiosity.

These more than ten catapults have been jointly 'audited' by Jiang Zhe and Guo Jia, and they can also be used, but this appearance is ...... All in all, none of the fifteen catapults were similar in appearance, and many places were reinforced with wooden planks, etc., and their bodies were very bloated, and the patches were patched one after another, which was miserable.

"Ahem!" Jiang Zhe was a little embarrassed on his face, coughed, and said to Cao Ying beside him, "Meng De, this is what I call a catapult, I'll use it to force Gongsun Zan to come out!" ”

"Oh?" Cao Ying didn't care how miserable the appearance of these fifteen catapults was, he was amazed again and again, and kept looking up and down these catapults with great interest.

"This ...... How is it used? Cao Ying asked with surprise and suspicion.

Jiang Zhe was on the high slope, and he visually measured the distance between the high slope and the Gongsun Zhan military camp, and took a small branch and scratched it on the ground.

"Formula...... The square of the height is equal to the square of the elongated ...... Hey, it doesn't seem right...... "Jiang Zhe actually left everyone aside, and Gu Zizai carefully evolved the formula.

Cao Ying scratched his forehead with his fingers, glanced at the sluggish crowd, coughed and said, "Shouyi, what are you doing?" ”

"Don't worry!" Jiang Zhe said, "Just go down again, the lever is about thirteen meters...... The weight of the stone is x, and the distance of Gongsun Chan is y......"

Guo Jia glanced at Jiang Zhe speechlessly, glanced at the Gongsun Zhan military camp in the distance, and said to Li Dian beside him, "Pull to this position, order the soldiers to put the bullet stone on it, and let go only after listening to my orders!" I'll try it out! ”

"No!" Li Dian bowed down to receive the order, turned around and shouted, "All the troops listen to the order, listen to my order!" Pull! ”

The principle of leverage, because the front section is placed with a very heavy boulder, and the throwing position of the bullet stone at the other end is naturally high, dozens of Cao soldiers used their best strength to pull the thick hemp rope tied to the throwing position, and pulled it down hard, and then two Cao soldiers panted and put a huge boulder like a grinding plate in the throwing position, and saw Cao Ying's eyelids jump, and said secretly, do you have to use this stone to smash it?

Guo Jia nodded, "One, two, put!" ”

Dozens of Cao soldiers suddenly let go, only to hear a bang, and another end full of heavy stones slammed into the ground, raising a cloud of dust.

"Phew!" Cao Ying's face was covered by the dust, and he glanced at the catapult and said in astonishment, "That'...... And what about the stone, ah no, the projectile? ”

"Lord, look!" Guo Jiayao pointed in one direction.

Cao Ying followed Guo Jia's line of sight, gasped, and saw that the boulder as big as a grinding plate had become a black spot at the moment, and flew straight towards Gongsun Zhan's camp.

On the other hand, Gongsun Chan's side naturally saw this scene, only to see Gongsun Chan stunned, and he actually stood on the spot, letting the boulder fly straight towards him.

"Be careful, lord!" Seeing that the situation was so critical, the two guards hurriedly pulled Gongsun Chan away.

"Bang!" A boulder the size of a millstone smashed headlong on the two guards, dusty and faintly bloody.

Gongsun Chan came back to his senses at this time, waved away the dust in front of him with his hand, glanced at the position he was in, and his heartbeat suddenly accelerated.

I saw that the two guards collapsed to the ground, pressing the boulder on their bodies, and one of the guards was directly hit in the head, only the head of the ground was shattered, and the red and white mixed things slowly flowed out, obviously dead and could not die anymore; The other guard was smashed to the body, and his flesh was blurred by the boulder from the belly down, and his intestines flowed all over the ground, obviously not living long...... "Lord, lord......" saw the guard struggle and said, "The small one is very ...... It's very hard, please give it to the Lord...... Give a pain...... Joyfully! The tone was very sad.

Gongsun Zhan's eyes were slightly red, he lowered his body slightly, sighed and said, "Go with peace of mind, I will treat the old and young in your family well......"

"Thank you...... Lord! The guard had a slight smile on his face.

Gongsun Chan got up slowly, glanced at Yan Gang, Yan Gang understood, stepped forward and slowly pulled out his waist knife...... There was a muffled sound, and there was silence all around.

“…… Terrible! Cao Ying's face was full of shock, and he was overjoyed to step forward and stroke the catapult, and exclaimed, "There is such a siege weapon in the world, Feng Xiao, and worship by Cao Mengde!" ”

"Neither nor not!" Guo Jia jumped away with a smile, not daring to bow to Cao Ying, glanced at Jiang Zhe, who was staring at him without speaking, and said with a smile, "If it weren't for Shouyi mentioning it, Jia Zi wouldn't have thought of ......it."

"Yes, yes, yes!" Cao Ying nodded again and again, and when he turned around, he suddenly saw Jiang Zhe standing there with an unkind face, and asked hesitantly, "Shouyi, what happened?" ”

...... "I have worked so hard to awaken the knowledge that has been dormant in my body for years, you ...... Jiang Zhe's expression was so complaining...... It is said that when Jiang Zhe was in high school, he scored more than 90 points in objects and mathematics! Alas, it's good to sit next to the class president with excellent grades...... snatched the wine jug from Guo Jia's hand, Jiang Zhe took a sip and said, "This catapult is not very perfect, Meng De, look!" Jiang Zhe pointed to the reinforced positions on the catapult, frowned and said, "Although this is very powerful, it is a pity that it will not last long, and the wear and tear is very great!" ”

Cao Ying nodded, frowning, with such a powerful siege weapon, but was told that it would not last long, Cao Ying had mixed feelings in his heart at the moment...... Suddenly, the drama around him smiled strangely and said, "It's easy to be strong, why don't you wrap these critical places with iron sheets, right?" ”

Jiang Zhe shrugged, Cao Ying and Guo Jia glanced at each other, and said with great joy, "Zhicai's meaning is very much in line with my heart!" ”

Looking at these catapults with satisfaction, Cao Ying suddenly remembered something and said to the strategists, "This thing is called a catapult?" ”

Jiang Zhe shrugged and said, "That's right! ”

Guo Jia frowned slightly, and said hesitantly, "Although there is a manufacturing method in the book, it is a pity that it has no name, so it is better to call it a car throw?" ”

"It's not right, it's not right!" Cao Ying took a few steps forward, lowered his head in contemplation, and then raised his head again and said, "When you see this car firing projectiles, the roar is like thunder in the sky, why don't you change it to a thunderbolt?" Shouyi, filial piety, and Zhicai, what do you think? ”

Thunderbolt ...... How did the name Thunderbolt come from? Jiang Zhe glanced at the fifteen catapults strangely, oh no, it was a thunderbolt car, and smiled, he originally thought that it was because of the power of this car that it was called a thunderbolt car, but he didn't expect it to be because of the noise...... "Thunderbolt!" Hey, Thunderbolt! Cao Ying was overjoyed, and even the three generals Cao Chun, Li Dian, and Le Jin around him also smiled, and they also had such a sharp weapon, are they still afraid of Gongsun Zhan's iron wall?

"Cao Mengde!" Suddenly, a loud shout came from the Gongsun Zhan camp in the distance, "I have no grievances with you, you help the shameless villain Yuan Benchu, and repeatedly bad things for me, now I have set up a camp here, you don't dare to lead the troops to attack, but you are to get some side doors, kill my soldiers, my Gongsun Boqi and you are incompatible!" If you have the ability, you will lead the troops to attack, and the old man's head is waiting for you to get it! If you are afraid to come, the old man will not embarrass you, retreat quickly, and do not repent in vain until the time limit! ”

"This old horseman!" Cao Ying only felt that his anger was surging, and he was about to echo and scold, but was stopped by Jiang Zhe.

I saw Jiang Zhe smile and said, "Gongsun Zhan is poor, even if he scolds thousands of sentences, what's the use?" If Meng De retains these strengths, killing him will only take the power of a sword! ”

Cao Ying listened to Jiang Zhe's words, calmed the anger in his heart, and said with a smile, "The words of righteousness are good!" At this moment, it is useless to say thousands of sentences, and when I capture this old horseman, I will see how he scolds again! ”

"The lord can endure the unbearable of ordinary people, which is also a blessing for us and the world!" Guo Jia and Xi Zhicai said with a smile.

Cao Chun and Li Dianle also clasped their fists and praised a few words.

Cao Ying felt a little proud in his heart, and smiled and hugged his fists in return.

"Huh?" Gongsun Chan was very puzzled in his heart, why did he insult Cao Mengde, but Cao Mengde did not make a sound? Could it be that this Cao Yingcheng Mansion is still above Yuan Benchu?

When Gongsun Chan was about to speak again, he suddenly heard a few roars, just like Fang Cai, but at this time, there were more than ten bullets thrown from the boulder...... Rumble...... There was a chaotic sound, and the voices of people at the gate of Gongsun Zhan's camp were noisy and chaotic.

"Good!" Cao Ying's eyes were sharp, and he saw that one of the more than ten bullets fired was actually the gate of Gongsun Zhan's camp in the middle of the village, and looked at the gate and collapsed, and the Gongsun Zhan soldiers on the top screamed and fell, and Cao Ying had a bad breath in his heart.

Shouyi is right! What's the point of scolding back and forth with the battle situation? In vain!

Cao Ying shouted and said, "Smash me!" Smash hard! I don't believe that Gongsun Zhan, the old horseman, won't come out! ”

"No!" The hundreds of Cao soldiers shouted.

(To be continued)