The next fellow came, this country warrior, who looked taller and not frightened. He looked like a junior officer.

As soon as Xiang Yong came over, he pointed back to his team's ladder and said, "Our team's ladder is shorter than the other team's. Is this enough?"

Li Mengxi and Liu Bei hurriedly went to check the short ladder. Liu Bei asked Xiang Yong to put the ladder on the ground, and then measured the length of the ladder with his feet.

Liu Bei was thinking about how long the ladder was when he suddenly asked in surprise, "Xuan Degong, how high is the wall of the city we want to attack?"

"I don't know." Liu Bei replied without thinking.

Then Liu Bei was suddenly startled and turned around to look at Li Mengxi with wide eyes.

(Fuck you!) Li Mengxi also cried out in his heart.

I have been busy building ladders for a long time. I have been working on them for a long time. I don’t even know how high the enemy’s city is. If the city is attacked tomorrow, the soldiers will finally carry the siege ladder through the rain of arrows to the bottom of the city, and then put it down.

As soon as the ladder was erected, I was embarrassed to find that the ladder was not long enough, so it was a lot of fun.

"Send someone quickly to ask General Guan!" Li Mengxi hurriedly suggested.

Liu Bei turned around and was about to go find Guan Yu in person. Then he thought that things here also needed to be watched, so Liu Bei went back to find his own soldiers and asked them to go to Guan Yu who was besieging the city overnight and ask how high the enemy city was.

The soldiers left, and Liu Bei paced back and forth anxiously. Finally, after a while, the soldiers returned.

He rode one horse on the way out and two horses on the way back, and Guan Yu followed him back.

As soon as he saw Liu Bei, Guan Yu dismounted his horse early and walked quickly, "Brother, the city is two feet high."

Guan Yu talked to Liu Bei angrily.

Beside Liu Bei, he was surprised to see Li Mengxi, who stayed up so late, here.

Guan Yu suddenly became less nervous.

"I was negligent in this matter," Guan Yu reflected on himself. "During the day, I only told the carpenters to build siege equipment, but I forgot to tell them the height of the city. It was someone who was negligent, and it almost led to a big mistake!"

Although Guan Yu was brave and invincible, he was also frightened for a while.

"Then, in addition to the height of the city, how big is the gate of the enemy city, and how wide is the suspension bridge? Can our siege army cross the suspension bridge?" On the side, Li Mengxi fired several questions like a barrage.

Guan Yu couldn't answer. He picked up the reins and turned the horse's head, "I don't know about this. Xi'er wait a moment. I'll come back as soon as I go!"

Saying, "Drive!" Guan Yu clamped the horse's belly, and the horse Herod roared, and rode away amidst the rapid sound of horse hooves.

But he said that Guan Yu said goodbye to Li Mengxi and rode straight to the bottom of the moat. On the city, yellow turban arrows were flying like rain. Guan Yu was unafraid. With one hand he held up the crossbow arrows with a green dragon leaning against the moon, and with the other hand he picked up the reins. The horse he sat down jumped into the city with a leap of about ten feet.

Among the suspension bridges.

The horse jumped in the air and saw the iron rope. Guan Yu raised his sword with both arms and slashed, cutting off the iron rope with a click. He then cut off the other rope with a click with his backhand.

The two iron cables were cut off one after another, and the suspension bridge slammed to the ground with a snap.

Guan Yu's horse raced across the suspension bridge without stopping until it reached the city gate, where he reined in his horse.

Guan Yu opened his red phoenix eyes slightly and looked at the city gate. He could see its width from left to right and its height from up and down.

"Got it." Guan Gong said secretly, then rode back.

When it comes, it cuts the iron rope across the suspension bridge as fast as the wind, and when it leaves, it is faster than the wind.

The yellow turbans on the city only heard the suspension bridge break, and looked around again, but the person had disappeared.

Li Mengxi was talking to Liu Bei, but before he could finish a few sentences, there was the sound of horse hooves, and Guan Yu turned around.

"The suspension bridge is eight feet wide, the city gate is three feet high and nine feet wide."

Guan Yu left in an instant and returned in an instant. Li Mengxi was shocked by his speed.

You can use poems to praise:

If you want to build a car ladder, you don’t have a foot.

Strong men and horses gallop at night.

The sword cuts the iron rope and the thunder is heard,

It's too late to look under the yellow scarf.

A word has passed before half of the people have returned,

When I left, the sound of horse hooves had not stopped.

Someday he will warm the wine and kill Hua Xiong,

The traces have already appeared today.

But it was said that Guan Yu's horse could detect the width of the suspension bridge and the length of the city gate. Li Mengxi and Liu Bei suddenly felt at ease.

Li Mengxi invited Guan Yu to discuss siege strategies. Guan Yu stroked his long beard and smiled, "I will block the east gate to prevent the Yellow Turbans from breaking out. With Meng Xi here, I will have no worries about attacking the city."

Guan Yu laughed loudly and rode away.

Guan Yu trusted Li Mengxi very much, even though Li Mengxi was still a child.

Li Mengxi sniffed and looked up at Liu Bei, "Mr. Xuande, you are here, I'm going to take a look at the siege spine."

"That's fine." Liu Bei nodded in response. Both the carpenter camp and the siege team needed someone to keep an eye on both sides, and Liu Bei was unable to do all the work on his own.

It's just right for Li Mengxi to go.

So, holding a torch, Li Mengxi went to the carpenter camp.

I saw that the carpenters were busy installing frames on the siege ridge. It seemed that they were preparing to install a shed on the siege ridge.

Li Mengxi looked around the siege spine. Guan Yu said that the suspension bridge was two feet, more than two feet away. Li Mengxi realized that he did not know the weights and measures of the Han Dynasty.

"General Guan said that the suspension bridge is two feet wide. Can our siege vehicle pass through it?"

The carpenter who dug a hole on one side of the siege spine didn't even raise his head. "Yes." He immediately answered Li Mengxi.

Li Mengxi felt that it felt unreliable, so he couldn't help but ask, "It doesn't matter if our car is narrower, but if it is wider, it won't be able to pass the suspension bridge..."

"Relax, uh... uh... our car is one foot and a half wide and can pass it." The carpenter returned. He wanted to call Li Mengxi by his honorific title, but after thinking for a long time, he decided that calling him General Li Mengxi was not appropriate.

I can't think of anything else to say. Li Mengxi didn't have any military position in the army, but he had a transcendent status.

"That's good." Li Mengxi nodded. He walked to the front of the siege spine and gestured with his hands. For the first time, he had some idea of ​​the length units in the Han Dynasty.

(It turned out to be one and a half feet long.) Li Mengxi thought in his heart.

When Li Mengxi left the carpenter's camp, he briefly felt his height. It was about three feet, which was still more than half the height of a seven-foot man.

Li Mengxi met Liu Bei again and saw that Liu Bei's face was not good-looking.

"What's wrong?" Li Mengxi asked.

"The ladder is short." Liu Bei simply replied with a few words, which made Li Mengxi feel the seriousness of the problem.

This chapter is not over yet, please click on the next page to continue reading! A two-foot-high city wall does not mean that it is enough to make a two-foot-long ladder, because the ladder is placed diagonally, and a straight up and down ladder cannot be climbed.

Assume that it is a ten-meter-high city wall. If the angle between the ladder and the ground is 45 degrees, and the top of the ladder is just against the top of the wall, then the length of the ladder should be twice as long as the root of the city wall. The root of 2 is approximately equal to 1.414

, that is, for a ten-meter-high city wall, the ladder must be 14 meters long.

And one more thing, what is the angle between the siege ladder and the city wall?

If we have this data and find out the general rules of the angle between the siege ladder and the city wall, it will be much easier to build the siege ladder in the future.

According to Liu Bei, except for three or four siege ladders that are long enough, the rest are all a bit short.

Could it be said that all the prepared siege ladders are useless?

When Li Mengxi raised his head and looked at the sky again, the moon's position had moved slightly past the center of the sky. It looked like it was after twelve o'clock.

The village heroes carried unqualified ladders and rushed to the carpenter camp. Just after returning from there, Li Mengxi followed Liu Bei for another trip.

Liu Bei arrived at the carpenters' camp and discussed the problem with the carpenters.

"This is easy to handle, just pick up a section and it will be done."

Li Mengxi thought that the problem was very serious, but the carpenter actually said that it would be solved by just cutting it off.

Li Mengxi suddenly realized, isn't it? Just make a short ladder as long as it is short, and then tie it up with a rope. You can just connect one section, and there is no need to make it again.

This is what Li Mengxi, who doesn't understand technology, thinks so, but the level of the carpenters in the carpenter camp is much higher than Li Mengxi imagined.

People don't need to tie them with ropes, but a very magical technology - riveting falcon.

The carpenters used chisels to cut out a simple falcon mouth that Li Mengxi couldn't understand on the main shaft of the ladder, and then cut out joints on the joints. After the tenon joints were completed, it was like connecting building blocks, connecting the main shafts of the short ladder and the long ladder.

Got it.

This technique was like magic, which greatly surprised Li Mengxi.

Li Mengxi was afraid that the falcon connection was not firm, so he stepped forward and shook it hard and broke it apart. Miraculously, the joints were stuck tightly, as if they had grown together.

Li Mengxi praised the skills of the carpenters. The carpenters all said that their skills were not very good, but the real masters made great things.

The carpenters should not be humble. Most of them should indeed be country carpenters. However, country carpenters and riveting falconers all have such good skills.

Li Mengxi watched the carpenters connect the three pieces and couldn't help but sigh.

The engineering technology of the Han Dynasty was very powerful.

A group of foreign slaves on the Internet just say that Rome is great, but they often continue to belittle the great men of the same period.

It’s funny, let me ask you foreign slaves, let alone other engineering skills, how is your Roman wild father’s wood processing technology? Is it comparable to the big man? Do you have falcon harvesting technology? If not, please tell me how to start logging in the wild efficiently and quickly.

Quickly build a strong and tall siege engine?

How can you brag about Rome without any shame?
Chapter completed!