Three Kingdoms: I, Liu Adou, don’t need anyone to support me

Liu Chan's engineering equipment is a thunderbolt.

This "thunderbolt" is a kind of stone-throwing device, the principle of which is also very simple, is Cao Boss and Yuan Shao when he was in Guandu when he refused, Liu Ye offered a thunderbolt car plan, broke Yuan Shao's crossbows, so that Cao Cao in Guandu to get a stronghold, because the sound of throwing stones is very loud, so it is named Thunderbolt. It is the earliest recorded stone-throwing device in the history books.

However, what Liu Chan made out was an enhanced version.

Because, he has installed the springs.

Although it is not as good as the springs of later generations, the range is a full 300 meters.

The power of shooting out is naturally not to be underestimated.

During this time, Liu Chan was pulling a group of people to conduct research, although this spring is not as good as the weapons of later generations, but it is a useful work.

Then there are the improvements to the Thunderbolt.

Liu Chan knows the principle of this thing, and as for how to strengthen it, it takes a lot of thought.

The wisdom of the Chinese people is infinite, but the wisdom of the Chinese people is easy to be disconnected.

In a troubled era, it is very likely that the things summed up by the predecessors will lack "coherent implementation of the system" and "logical step recording" to ensure the inheritability and accumulation of wisdom.

After crossing over, Liu Chan suddenly found that in fact, the construction speed of this era is not inferior to the speed of today's reinforced concrete?

In the Tang Dynasty, the palace of Chang'an City was completed in only 10 months, and the main hall of Li Shimin's appreciation of Wei Zheng was demolished from the palace, and then it was built in five days.

Not only is it fast, but the quality is often guaranteed for thousands of years.

The core of this is that even if there are hundreds or thousands of parts in a building, no matter how different the shape and size, the proportion of standard materials is the same.

Therefore, the overall size of the building, whether it is the width, depth, height, and slope, is a multiple or fraction of the standard material, and this ratio is very scientific, consistent with the mechanical calculation of the building in later generations, and the force is more uniform and reasonable, so there are many ancient buildings in the Tang and Song dynasties that are still strong.

However, in the Qing Dynasty, not only could not talk about the same proportion of standard materials, but even the architectural ratio changed from a scientific 3:2 to 6:5 or even 5:4, close to a square.

In this era, someone actually summed up these things.

This is what surprises Liu Chan the most.

In this era, weapons were actually loaded into small carts one by one, pushed to the battlefield, and quickly assembled before siege.

The same goes for this modified version of the Thunderbolt.

First, it was disassembled into parts, and then, quickly walked to Chencang, went straight to Chencang City, and assembled it on the spot, so that you can have a good experience of the power of this enhanced version of the thunderbolt.

The ancient city wall is not the brick and stone city wall of the Forbidden City, the cost of the city wall is too high, and the popularization era is also late, and the city wall construction of the Three Kingdoms era is rammed earth wall.

This kind of wall to the Qin and Han dynasties technology has been formed, carrying the city car hit, carrying the ability of the stone thrower bombing has been very strong, this kind of rammed earth wall is most afraid of time and heavy rain, not that this kind of wall water will collapse after a bubble, but if soaked for a long time, the wall will gradually collapse and collapse.

At present, the rammed earth wall technology is mature very early, nearly more than 600 years ago, Zhiyao Dashui besieged Jinyang, and the city wall has not collapsed for more than a year!

However, if the city has been built for too long, it will not be so strong, the walls will have problems, and then, at this time, if you attack again, you will have

to

If the city had been built earlier, and the rammed earth technology had not yet taken shape, the city would have been more vulnerable, and with this enhanced version of the thunderbolt, it would not have been a big problem.

Of course, in fact, Liu Chan still sent a lot of things.

Saltpeter, charcoal and sulfur are all crushed and crushed into powder, one and a half charcoal, one and a half sulfur, and then seventy percent saltpeter.

This is the legendary black powder with great power.

Then use egg white to make it granular, keep screening, too large particles do not want, too small do not want, the size of a grain of rice is just right, and then put it into a small clay pot, by the way decorated with sharp pieces of broken iron to increase the lethality, the bamboo pipe is inserted in the middle to pull out a lead, soil and fish glue sealed...

That's what shells are.

The power will definitely not be able to blow up the city wall.

However, once it explodes, the explosion formed by this piece of broken iron is simply not too beautiful for the killing effect formed around it.

This thing is used with an enhanced version of the Thunderbolt.

If it really doesn't work, I'll put the gunpowder in the catapult and throw it directly into you.

That's all you can do.

Whether you can take Chen Cang, this beachhead that enters Guanzhong, it depends on the operation of Daddy Zhuge Liang.

Fortunately, fortunately, now there is no need to transport grain from Qishan Road with all their might, after the Han army took Yongzhou and Liangzhou, it can also prepare some grain to be transported directly to Chencang, and the pressure on himself can be reduced a lot.

And at this moment, whether it is Liu Bei, Zhuge Liang, or Xu Chu and Cao Hong, they are already playing a real fire.

Shu Han first put the first ladder, was ordered by Cao Hong to burn it with a rocket, and then, he got on the car again, and was thrown down from the city by Cao Hong with a rope tied to a stone mill, smashed the couch and rushed the car.

Zhuge Liang erected a tower to shoot arrows into the city, filled the moat with soil, and wanted to transport troops directly from the tower to kill Cao Hong and Xu Chu, I have to say that all the means that can be used have been used.

The two sides can be said to have fought a real fire.

However, this Chen Cangcheng is like a nail, nailed here.

This belongs to the kind that can't be fought without fighting.

And fighting, is the hardest.

After all, Sun Wu and his old man have said it.

Therefore, the army is attacked, the second is the enemy, the second is the army, and the next is to attack the city.

The method of siege is a last resort.

Without artillery, that's.

Zhuge Liang and Liu Bei were also a little worried at this time.

It seems that it can't be beaten.

If this lasts for a few months, it will be spring, and whether or not to sow grain and whether to harvest grain later.

From the beginning of the Battle of Hanzhong to the present, it has been two or three years of fighting.

The current Shu Han army is also the end of the strong crossbow.

There is really not much food left, and the soldiers need to calm down and take a good rest, even if the soldiers are fighting one after another.

"King, military advisor!"

At this time, Ma Liang came to Zhuge Liang and Liu Bei, and said with a smile: "The prince said that he sent a batch of new weapons to help me attack the city!" "