"So we need to eat vegetables to clear our stomachs and intestines, and we don't have night blindness." Hong Lianshuo looked at them with dark and bright eyes and said.

"That kind of kind of thing, growing vegetables." Cao Huaimin nodded like pounding garlic.

"Hong Niangzi, Hong Niangzi, if you grow vegetables, you can plant pumpkins and loofahs and let them climb along the wall. Don't touch the ground. Hao Jinzhi looked at her with a flushed little face and said.

"Good!" Hong Lianshuo nodded with a smile and said, "This kind of dish is Han Xin's soldiers, the more the merrier, not only every household grows it, but also the yamen, and every corner of the city is used to make use of it." ”

"Are we going to eat all this planting?" Cao Huaimin said with a smile.

"I'm not afraid enough! This can't be eaten and dried into dried vegetables, stored and eaten in winter! Winter and spring are the time when the greens and yellows are scarce, and there is no green in the field except for wheat seedlings. Hong Lianshuo looked at them with his eyebrows raised and said, "At this stage, we are short of food, eat more vegetables and less grain." ”

"Hehe......" Cao Huaimin shook his head and laughed when he heard this, she really has her.

"Hong Niangzi, Hong Niangzi, you can quickly talk about attacking and defending the city!" Cao Yuanshan said anxiously, and the little guy said positively, "We grow this dish." ”

"Okay, let me tell you why it's so easy to defend the city!" Hong Lianshuo's jet-black pupils flashed with a small light, looking at their little faces with concentration, and said, "Why do you say you want to build cities one by one?" The walls are still so thick! ”

Cao Yuanshan's black eyes turned around, "Of course, it's to defend the city." ”

"yes!" Hong Lianshuo looked at them calmly and said, "Normally, the besieging side needs to send more men? At least three times the strength of the defending side can successfully take the city. ”

Hong Lianshuo took a pottery bowl and poured water on the low table, and drew the city wall with his index finger on the low table, "This city wall is not just a simple wall. It should be regarded as a defense system with mobile operations. It is not the besiegers who take the ladder and put it on the city wall, and everything will be all right if they kick it up. How could it be that the defenders only had archers! ”

"What's that?" The children asked curiously.

"The walls of Yandu City are three zhang high, and they are as high as four or five adults. The wide and winding walls of the city wall are not so easy to think about. Hong Lianshuo looked at them with bright eyes and said.

"Mother, you can." Hong Wangyue looked at her with little stars in his eyes and said adoringly.

"Boy, there are a few people in this world who are like me." Hong Lianshuo looked at him funny and said.

"My mother said that there are mountains outside the mountains, and there are people outside the people." Hong Wangyue said with a small mouth.

Hong Lianshuo looked at him in astonishment, pointed his index finger at the tip of his nose and said, "Even if you are right, fighting a war is not a matter of one person or a few people. He was done by many people together. ”

"Oh!" Hong Wangyue nodded obediently, "Mother continue." ”

"This wall should be built with a dense wall of horses." Hong Lianshuo's inky eyes looked at them and said, his fingers dipped in water drew the face of the city wall.

"The horse noodles mentioned by Hong Niangzi are the two articles of "Bei Ti" and "Bei Gaolin" in "Mozi", and the city mentioned in them is the horse face." Cao Huaimin suddenly remembered and looked at her and said.

"That's right! I found that there was no one on our walls. Hong Lianshuo's fingers tapped lightly on the low road, "Sixty steps to stand one, jump out of the city without reducing two feet, wide and narrow with the location is uncertain, looking at the corners of the city on both sides, and there are buildings on it." This distance is exactly within the effective range of the bow and arrow sling! The index finger pointed to the horse's face wall and said, "This interacts with the city wall to eliminate the dead corners under the city, and attacks the enemy from three sides from top to bottom." He looked at him with sparkling eyes and said, "This horse face can be hollow." ”

"Hollow?" Cao Huaimin rubbed his chin and said.

"The existing city wall is not the rammed earth inside and the bluestone outside." Hong Lianshuo's index finger crossed his brow and said, "We have red bricks now, and the horse face of the city wall can be built into a hollow." This hollow is not empty, you can build a warehouse, go up and down by ladders, and there are pillars, floors, food, ordnance, and ...... in the well."

Cao Huaimin looked at her with green eyes and said, "This is simply a peacetime and wartime fortress that integrates combat, military quartermasters, and ordnance!" ”

"Smack!" Hong Lianshuo stretched out his hand and snapped his fingers in a dashing manner, "Right! If we want to build Yandu City as solid as gold, we don't need people to call, we have to retreat to the mountains for a road. He looked at them with a firm look in his eyes and said, "We must keep our home." ”

These days, Hong Lianshuo has seen a lot of drawings in the Ministry of Public Affairs, and the red bricks have been fired, and the armament has gradually taken shape in his mind.

"It's just that how to fit this size has to be calculated." Cao Huaimin twisted his three strands of beard and said seriously.

"The distance between the horses and the faces of the built is between sixty and one hundred paces, which is within the effective range of the bow and crossbow." Hong Lianshuo rubbed his index finger against the tip of his nose and said, "This Chengtian Street is wide and afraid of being assassinated, and it is also based on the effective range of the bow and arrow." ”

"You even know that." Cao Huaimin looked at her in surprise and said.

"It's wider than the rest of the streets in the city, and the number of steps comes to mind." Hong Lianshuo's inky eyes looked at him and said, his index finger nodded on the wall of the horse face that had not yet dried, "There are battlement walls on three sides of the outside of the horse face, and the battlement walls on the left and right sides have battlements, which are convenient for throwing bricks and stones and firing arrows to block the enemy's siege." The battlement wall on the front of the horse face does not have a battlement, and it is two feet higher than the left and right battlement walls, which can prevent arrows from hurting people under the city. The distance between the horses is 120 steps. "The intersection of fire is 60 steps, which is the effective range and killing range of throwing weapons such as bows and arrows, crossbows, flying hooks, throwing guns, and throwing stones, so as to form a group of high-altitude dense crossfire networks between the front and both sides outside the main wall, which improves the defensive function of the city wall." ”

Cao Huaimin twisted his beard and nodded incessantly, "This horse is good!" For those of us who are short of food, it is the best. ”

It is worthy of being in Mincao, and this life is carefully calculated. Hong Lianshuo said in his heart: Ma Mian is a reflection of the military needs of the cold weapon era in the city wall system, which provides the possibility of using troops and weapons in the most economical and reasonable way.

Hong Lianshuo looked at Cao Huaimin with glass-beaded eyes and said, "In this way, in order to enhance the defense and war capability of the horse face, there are generally enemy towers built on the horse face, which can not only station troops and lookouts, but also store weapons, so that the defensive performance of the city wall can be developed to the highest point." On each horse face of the city wall, a two-story enemy tower with heavy eaves was built to garrison and defend. In wartime, you can take advantage of its protruding exterior and tall buildings to observe the enemy, observe the enemy's situation, and prevent the enemy from attacking the city in a roundabout way. In addition, it can rely on the crossfire of the enemy building from the front and between the left and right floors to snipe the enemy, connect points and lines at any time, weave a tight high-altitude fire network, and effectively strike at the enemy. "Painted the enemy tower.