After traveling to ancient times, I relied on my husband to win

Seeing that they were practicing archery in an orderly manner, Qin Yan began to lead people to prepare materials for making catapults.

3 Recently, the Jin people still come to harass them from time to time, so Ye Wei and Li Chengze lead their troops to meet the enemy. Cheng Ziang seizes the time to train the soldiers, and Ye Wei and Li Chengze still go over from time to time to practice a few moves.

Lin Yecheng had been free since the day he arrived, and had basically been discussing strategies with Cheng Lao Hu and his advisers in the tent.

Qin Yan was idle anyway, and when he had nothing to do, he missed his wife even more. In order to go back to be with his wife as soon as possible, Qin Yan took a few soldiers to the woods outside the tent to cut down some trees and bring them back.

Qin Yan looked at the thick tree trunk and had no suitable tools in his hand, so he ran to the blacksmith who was accompanying him in the military camp.

Basically, they repaired all the damaged weapons in the military camp, and the weapons confiscated from the enemies were also transported to them to be melted down and remade into weapons.

Qin Yan found a few handy scimitars from the blacksmith, but there were a few craftsmen who were interested in the catapult he wanted to make, and when they had time, they would come over to help and see how it was made.

Qin Yan was very welcome to see someone coming to help him. Before Qin Yan went to Beijing, he had spent a long time with Carpenter Chen and others, so he was very familiar with handling wood.

Peel off the outer skin of the wood, and start shaping and polishing the wood according to the drawing.

The wood they used was all tree trunks, and the annual rings on the trees were at least ten years old. It was not easy to make the cylindrical trunks look like what they saw in their drawings.

After two days of polishing, Qin Yan used the rough wood as the bottom base, but it was probably too heavy and inconvenient to use.

Qin Yan added three thicker wheels to the ground to facilitate the movement of the catapult.

Correspondingly, Qin Yan took into account the load-bearing capacity of the wheels and appropriately weakened the weight of the wood, dividing the original whole wood into long wooden pillars.

When making the chassis, make it into a triangle to fix the three wheels, and the triangle is the most stable.

After completing the chassis, Qin Yan began to build a frame on it, erecting pillars on both sides and adding a rotating wooden pole in the middle using the principle of leverage.

It looks a bit like a Ferris wheel, but one end of it is very long and cannot rotate like a Ferris wheel. However, you can add weight to one side like a lever to lift the other side to achieve a projection effect.

The large one has come out, and the soldiers around are shocked and even more excited when they see the tall thing in front of them.

The highest view they had here was on horseback. They had never seen such large weapons before. Now they were very excited to see that they belonged to them, which greatly boosted their morale.

Qin Yan's confidence increased as he looked at the finished catapult, and he accelerated the polishing of the details.

A sling bag is tied to one end of the long pole with a hemp rope as thick as an arm to hold the projectiles.

A counterweight box is installed on the short head on the other side. By adding the counterweight lever, it can be tilted up and stones can be thrown.

After it was completed, Qin Yan found that it would be troublesome and time-consuming to manually pull the hemp rope to replace the projected stones, so he made improvements.

By utilizing the friction between the wheel and the belt, the lifted pole can be pulled down by simply turning the wheel, which greatly reduces the burden on the soldiers.

After it was done, Qin Yan took it to an open space to try it out. Because the wood was less thick, they couldn't use large stones. But they were not using it to attack the city gate, so it was just right for now.

It is another powerful weapon on the battlefield. Cheng Lao Hu's eyes narrowed into slits when he saw the results.

Patting Qin Yan on the shoulder and praising him for a good job, Cheng Ziang looked very curious. He pestered Qin Yan to ask how to use it and then tried it a few times, which made Cheng Ziang very excited.

Seeing that the effect was good, Qin Yan told the people sent by Cheng Lao Hu to learn how to use it.

Then he took his men to use the remaining wood to make a few more catapults.

Qin Yan has been busy teaching people and building cars since he arrived at the military camp.

It was almost January when the last few catapults that he taught the craftsmen to make were put in place. Qin Yan became more and more anxious as time passed.

Because the journey from the border to the capital was long and communication was not a specially trained method used by the army, he did not send a letter to Jiang Zhi.

If he had sent a letter, it would have taken more than half a month for the letter to reach Jiang Zhi, and by the time Jiang Zhi wrote back to him, he might have already gone back, so he chose not to write the letter.

Qin Yan was anxious as he watched Jiang Zhi's due date approach. Finally, the craftsmen finished making the catapult and they all understood the principle of the catapult. Qin Yan was relieved that his mission had been completed. He explained to Cheng Lao Hu and went back to pack his luggage.

Cheng Lao Hu knew that Qin Yan was thinking about his wife at home. Now that the strength of the military camp has greatly improved, Qin Yan's departure will not affect the overall situation, so he let him go without saying much.

Cheng Ziang and the others also knew how much Qin Yan cherished his wife, so they said goodbye to them one by one in the evening.

Lin Yecheng didn't want to leave yet. He also wanted to gain experience on the battlefield and see some war, so he learned from the counselors in the barracks, said goodbye to Qin Yan and stayed.

Qin Yan is now thinking about his wife who is about to give birth, so he has to go back quickly and put everything else aside.

The next morning, Qin Yan and the people who were protecting him by Cheng Lao Hu rode back to the capital at full speed.

After walking and stopping for a week, Qin Yan finally saw the city wall of the capital in the distance.

Qin Yan breathed a sigh of relief and returned to the Qin Mansion after entering the city.

The soldiers who escorted him back went directly to the palace to report the situation at the border to the emperor.

Jiang Zhi was resting in the pavilion in the garden. She was almost pregnant and her body was very heavy. Her legs were always swollen and she had cramps at night. Qin Yan had taken care of her before. When he left, Jiang Zhi felt uncomfortable and cried secretly several times at night.

She listened to Tang Bowen's advice and decided that if she wanted a smooth delivery, she should exercise well now. Walking regularly would be more beneficial for her to have a baby.

Jiang Zhi held her stomach and walked around in the garden. When she was tired and took a rest, she saw Qin Yan coming in from outside.

"Wife, I'm back!" Qin Yan's voice was filled with urgency and joy.

When Jiang Zhi heard Qin Yan's voice, her eyes turned red, tears welled up in her eyes, and her lips were tightly pursed.

Qin Yan felt so distressed when he saw Jiang Zhi like this. He took a few quick steps forward, hugged Jiang Zhi, and began to coax her skillfully.

"Guaiguai~ Did you miss me? Okay, okay, I'll stay with you after I come back, okay? Don't feel wronged, okay?"

As soon as Jiang Zhiyi was held in his arms and coaxed, she thought of how uncomfortable she had been for the past month and felt even more aggrieved.

"Wuwu~ It's not good at all, I just want to cry, wuwu~"

Qin Yan had no choice but to hug Jiang Zhi and coax her, "Okay~ I'll just hold you, okay, dear~"

Qin Yan let her lie in his arms and vent her accumulated grievances, and when she had almost vented her feelings, he took out the gift he had brought back.

Qin Yan brought back a few rabbit skins from the border. The others were too big for him to bring back, so he waited for the army to return and asked Cheng Ziang to bring them back for him.

They also brought a few wind chimes made of shells, which Qin Yan bought from a fisherman's house when they were on the boat.

Jiang Zhi burst into tears and smiled when she saw Qin Yan, who had rushed back exhausted and still remembered to bring her a gift as promised.

Qin Yan was relieved to see Jiang Zhi finally smile, and happily hugged his wife for a while. In the end, Jiang Zhi couldn't stand him anymore and let go.