Coming out of the wounded barracks, Liu Cheng saw someone dismantling some wood in a field ahead and asked, "What are those wood for?"
The official next to him replied: "My lord, a few days ago, the craftsmen accompanying the army built several samples of siege equipment according to the records obtained from the atlas obtained from the relevant yamen of the imperial court.
Isn't it going to be launched tomorrow, so these siege equipment will be launched."
All the city equipment has been dismantled and will be loaded into horse-drawn carriages to be transported away tomorrow."
"Oh."
When Liu Cheng heard that it was a siege machine, he immediately became interested and said, "Have the samples of these siege machines been tested for firing?
How is the effect?"
Liu Cheng was very clear about the roughness of the records of some equipment in this era, especially the records of the production processes and formulas of weapons and large agricultural tools.
Most of the records were only a few sentences and not detailed at all.
Even the records The pictures are only rough sketches, and I don’t know if the person who recorded the information was lazy or did it on purpose.
All in all, it’s really not easy to use them to create a finished product.
For example: sword casting.
The sword-casting process recorded by the relevant yamen of the imperial court is relatively detailed, but the issues related to the heat are vaguely written.
The number of times of folding and forging each time, returning to the furnace and reheating after forging The length of time and so on are not clearly recorded.
There is no unified standard at all.
Even if someone gets the album and written records, it still needs to go through trial and error for a relatively long time.
This is really fucked up.
The world has been at peace for a long time, and there has been no war for many years.
Siege weapons are not used all the time, and they are made of wood, which is easy to rot and break.
Generally, the army does not have inventory, and only temporarily hires craftsmen to build them when needed.
Ordinary craftsmen have never built these things before, so to build this thing, they need to follow relevant records.
Building siege weapons is relatively simple.
Most of the materials are wood.
Although the records are not very detailed, the carpenters and blacksmiths are experts after all.
Even if the records are not detailed, after some speculation, estimation and research, and then through After several trials, it didn't take too much time to make it.
However, if the time interval recorded in the atlas is too long, and dynasties have changed during this period, and measurement units such as weights and measures have changed, then it is necessary to find evidence, speculate and verify, and convert to contemporary measurement units.
The official responded to Liu Cheng's question: "These samples have been tested for launch, and the results are similar to those recorded."
Liu Cheng said: "Have them all stop, reassemble them and fire them a few times to let me, the general, see the effect."
"promise" After the official agreed, he immediately ran over and asked the soldiers and craftsmen to stop and reassemble the parts of the siege equipment.
A crossbow was assembled.
The official introduced to Liu Cheng: "My lord, please take a look.
This is a double-bow crossbow.
It requires twenty-seven people to operate it.
The range is 150 steps.
It can fire both stone bullets and crossbow arrows."
Under the command of one of the team officers, some soldiers began to operate the bed crossbow, first stringing the bed crossbow, and then loading the crossbow arrows.
At the command of the team officer, one of the soldiers hammered the switch, and the crossbow string "buzzed" There was a bounce back, and the thick crossbow arrow was also launched.
Only a "swish" sound was heard.
In the blink of an eye, the crossbow arrow hit a wooden sign erected two hundred meters away.
The wooden sign was shattered by the huge penetration. .
Next, two more bed crossbows were assembled.
One was called a hand crossbow.
This was not a small hand crossbow, but a thing that required 300 people to operate it.
Its range reached 250 steps, almost 400 steps. meter distance; there is also a type of crossbow called the three-bow crossbow, which consists of three huge bows and requires 370 people to operate it.
Its range reaches a terrifying 470 meters.
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The officials, operating soldiers and craftsmen thought that Liu Cheng would praise them after seeing the entire operation process and their power, but unexpectedly Liu Cheng said: "The power is pretty good, and the range is far enough, but they The firing efficiency is too low.
It takes so many soldiers to operate a crossbow. operation, and the interval between each two launches is too long.
For example, these three-bow crossbows require 370 people to operate them.
If our army needs ten three-bow crossbows to attack the city, wouldn't it require nearly 4,000 people?
Soldiers, you should think of ways to save manpower when handling them, and you should further think of ways to increase their range and power."
"Yes, yes, I will let the craftsmen find a way to solve these problems," the official agreed quickly.
At this time, a craftsman stammered: "General, general, I have a few ideas, no, I don't know whether to say them or not."
When Liu Cheng heard this, he looked over and saw a relatively thin young man among the craftsmen who looked a bit frail and bookish.
This man looked a little timid and had some stage fright in front of many people.
When the official saw Liu Cheng looking over, he quickly scolded: "Ma Jun, what do you think?
Tell me later.
My lord is busy with everything, so how can I have time to listen to your nonsense?"
He then said to Liu Cheng: "My lord, this man's name is Ma Jun.
He is from Fufeng.
He has read a little bit, but he stutters and can't speak clearly.
What other good ideas can he have?"
Who said that people who stutter have no talent and no future?
Liu Cheng muttered in his heart that Han Feizi, Deng Ai, Ji Xiaolan and others in previous history all had stuttering problems.
Why does the name Ma Jun sound familiar?
Could it be that he was a relatively famous figure in the history of the Three Kingdoms in his previous life?
Liu Cheng waved to the official after thinking for a while, smiled and said to Ma Jun: "Don't be afraid, and don't panic.
The Japanese general has plenty of time today." , if you have any ideas, please tell me slowly.
As long as you can improve the launch efficiency and attack power of siege equipment, and it is verified through experiments, I will give you a heavy reward from this general."
"Yes."
Ma Jun bowed his hands and said, "Young man, I think that these siege equipment are inefficient and require too many people to operate because they are stuck in the two links of stringing and moving the crossbow.
To shoot farther, the bigger the elastic force, the better, but it is not easy to pull the bowstring, and they are very heavy, and it takes a lot of manpower to move them.
The villain thought of two labor-saving methods."
"General, please look at this," Ma Jun said, taking out an object from his arms, but it was a wooden pulley.
He put a rope on the pulley.
One end of the rope was tied to a piece of wood, and the other end was held in his hand.
A heavy object was hung under the pulley and he said: "This heavy object weighs ten kilograms, but the villain only needs five kilograms of force to lift it, which saves half the effort."
The key is this wheel.
If more of these wheels are used to form a labor-saving mechanism, many people will not be needed to operate the siege equipment.
In addition, we can make a cart to fix the siege equipment when it needs to be moved.
It is pulled away on a cart, disassembled during the siege, and fixed on the ground for operation.
It does not require many people to carry it around."
Liu Cheng took a look, wasn't this a moving pulley?
He looked at Ma Jun and found that this young man really had a lot of ideas, and asked, "How did you come up with this method?"
Ma Jun cupped his hands and said: "I have read the Mohist books, and there are relevant records in the Mohist Scripture.
After thinking about it, I can improve the labor-saving wheels described in the Mohist Scripture and add a few more."
Wheels fixed on the siege equipment and movable wheels should form a labor-saving mechanism."
Liu Cheng immediately said: "Okay, your idea is very good.
This general supports you.
You should start doing it immediately and build this kind of mechanism as soon as possible.
Mr.
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Liu, get Ma Jun whatever he needs.
Send him as many people as he needs and cooperate fully.”
Official "Nuo" and Ma Jun bowed their hands and agreed at the same time.
What Liu Cheng didn't expect was that on the afternoon of the day before the army set off, good news came from Ma Jun.
A labor-saving mechanism and a cart for easy movement had been produced.
Only one day had passed.
Liu Cheng rushed to the test site immediately after receiving the news.
He saw that a double-bow bed crossbow had been assembled and fixed on a cart.
At this time, the cart was fixed in place by several wooden stakes.
The bed crossbow was indeed There is something extra, which is the pulley block, and several ropes shuttle between the pulley blocks.
When Liu Cheng came over, Ma Jun immediately stepped forward and bowed: "General, the mechanism and the cart that can help move it have been made.
Now I will operate this bed crossbow with these six brothers.
Please The general and other generals and lords are watching.”
Liu Cheng raised his hand and said: "Okay, let's get started."
"promise" There is a soldier standing on each side of the front end of the bed crossbow, two soldiers standing at the rear, and two more soldiers standing on both sides of the rear.
I saw Ma Jun give an order: "Wind the string" One of the two soldiers at the rear immediately hung an iron hook with a rope on the bowstring, and immediately turned a winch with another companion.
As the winch rotated, the pulley group began to work, and the bowstring was quickly pulled.
Hang on a protruding iron rod.
"Loading a crossbow" As Ma Jun shouted loudly, a soldier on the right side of the tail of the bed crossbow immediately handed a crossbow arrow to one of the soldiers pulling the string.
The soldier quickly installed the crossbow arrow in the groove in the middle of the body of the bed crossbow.
On the bow string, another soldier immediately moved the crossbow body, pointed the arrow at the target, and shouted: "Aiming completed" Ma Jun immediately ordered: "Launch" The soldier on the left side of the tail quickly stepped on a pedal, and with a "swish", the crossbow arrow was shot out, and at the same time there was a "buzzing" sound of the bowstring vibrating.
Liu Cheng silently counted the time it took for the whole process, which was about ten seconds.
He looked at the target again, and saw that a large wooden sign that had been erected was instantly penetrated by a crossbow arrow and exploded.
The generals, school officials and archers who were watching all around clapped their hands and shouted: "Okay, great!"
At this time, the soldiers did not stop.
They immediately re-strung the crossbows, took aim, and then fired.
The interval in between was about ten seconds.
Five crossbows were fired in succession.
Ma Jun gave an order and asked the soldiers to put the crossbows in.
The cart was put away and taken away, the soldiers at the four corners Immediately, they each raised a wooden hammer and knocked down the wooden stakes holding the crossbow.
The other two soldiers carried the wooden box containing the crossbow arrows to the crossbow.
The six men pushed the crossbow and left.
It originally required 27 people to operate it.
Bed Crossbow, now only requires six people to play around.
It seems that the soldier was still a little unfamiliar with the operation.
After a period of training, the time for firing the crossbow can be shortened.
If it can be shortened to about six seconds, it would be quite terrifying
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