"Then why can it be just donkeys and mules, not cows and horses?"

The people from the coal mine pointed to the strange big iron pot in the distance, still curious.

"Why? It's just leaking. Nowadays, those hydraulically driven, pedaled knife beds, and drilling a musket barrel are okay. If you make such a big thing... you can't do it."

"Let me say that, when cannons be bored with a knife machine, and can hit houses with two miles of land in one shot, I can create a cattle and horse instead of this broken donkey. Sincerely, this is true."

This is not a lie. The principle is sometimes quite simple, especially if there is someone who has learned two thousand years of human experience.

But the difficulty lies in the materials and precision.

After improvement, the efficiency has been improved and can be used for large-scale steam engines. Due to the urgent need for boring cannons in the development of military technology, if there is no boring machine that cannons, there is no way to process pistons and cylinders with an accuracy of about two millimeters, which leads to air leakage everywhere.

It’s not that it can’t be used, but that there is no way to promote it on a large scale, and the cost and efficiency are too low.

The division-of-work military factory in Sishang is already using hydraulic and pedal-driven beds, but it is just a matter of cutting a screw and all the gun barrels.

The principle of the steam engine is very simple. The small model can be made with files and cast copper, but it cannot be used if it is enlarged, because the piston does not fit the cylinder and causes air leakage.

If the cylinder can be dug out with a perfect cylindrical inner chamber, the cannon can basically hit wherever it is within the range.

The man from the coal mine seemed to understand, so he had to say, "I also hope to see it earlier. There is really a shortage of people, and there are people everywhere. It can use machinery, cattle and horses, wind and water. If we can use machinery, we really don't use people, but it's still not enough."

"I have to prepare dozens of horses and thirty or forty people when I pull the cart and drain the water. If your machine is really useful, it can save dozens of horses and dozens of people. If it is promoted to coal mines, it can save hundreds or thousands of people, right?"

The man from the machinery and equipment center nodded and said a little embarrassedly: "This coal-burning mule also needs to be used by people. Some switches must be used by people. When will the water be released and when will the air be opened... But there are few people, women can do it."

"I can improve it," said the master, go first, let the people of the world know that steam and coal can really be used as mules. As for the remaining improvements, take it slowly."

"You can save one person. Look at how jealous the people who run workshops are now? Those who escape from the government must first go one third; the other third will go to reclaim the land and serve, and the rest will be hired."

"A while ago, those people were looking forward to the war. What do you think you are looking forward to? You are looking forward to people. Looking at the people who cannot move on the nobles' fiefs, I tell you that those nobles occupy the pit and don't poop. The same people are in our hands and can produce three or five times the things they have in their hands."

He complained fiercely, and the strange iron lump was also transported over. This was the most primitive coal-use machinery. A large stove pit was built underneath, and someone was also required to turn on and switch the cold water. Perhaps according to the efficiency they did not know, it could reach an energy conversion rate of 15% of the 1000th.

But if the population is larger, it is really difficult to promote, but now there are fewer people everywhere, which is the easiest time to promote it.

The population explosion in later generations, and the meticulous farming was restored from oxen plowing horses to human plowing; with almost endless human hands, stability became a prerequisite. Without strong organizational ability, surviving the severe pain of machinery replacing people, they will always be reincarnated.

Whether sheep eat people or replace people with machinery, for a huge population, the pain it brings will be a major event involving millions of people's life and death, and no one dares to move.

Nowadays, there are few people and fewer people, and many of the pains that should be suffered do not need to be endured. Strong organizational strength can put people into planned land reclamation and development.

Technology is not science, but some things, technology often leads to science, especially some things that are really not too difficult.

This era belongs to craftsmen who can do things.

And those who hide in the preface to study "Tianzhi" belong to the future.

If you don’t understand the principles of mechanics, mechanical principles, and mechanical decomposition, you can still make water discharges, windmills, connecting rods, and even knock out something that should not belong to this era under inspiration and guidance.

Even chemistry from scratch, as long as someone understands some principles, as long as he is not afraid of death, he can jump up with his legs lame.

But when you jump up with a limp leg, you will always fall down. Those who hide in the shelf of the school and study the mysterious heavenly ambitions are those who put wings on them.

Knowing is easy and hard to do, which is very suitable for Si Shang, because there is a person who knows it.

But as for actions, many of them start from scratch, rely on prophets, and use human lives and time to pile them up.

The materials require millions of attempts, and the people in the machinery manufacturing center understand the key.

Some things can be done now as soon as the principle is explained.

For example, if alum acid is not good, then there will be no expensive medicine for heartache that is sold to nobles of the princes and nobles.

Some things, once the principle is explained, it may take ten or eight years to figure out the clue.

For example, alum acid, the largest alum acid workshop in Sishang now uses a lead chamber, but the lead is too soft. The lead chamber is small and inefficient, and it is easy to deform when it is large. What should I do? Add a wooden frame around the outside, paste grass mud, put a wooden frame on top, and hang the lead ceiling...

For example, the leaf spring that sounds very simple, has a very simple principle, elastic accumulation and flint firing, but it has taken ten years to make a sufficiently elastic leaf spring.

…………

The so-called "next door" of the man who installed the original coal burning machine was crowded with people at this time.

Several people carefully used pliers to remove a curved leaf spring from the melted lead water, as if it was a fragile piece of porcelain, and seven or eight people looked at the small, probably the length of a finger.

As the man who complained by the coal mine said, it has been ten years since the leaf spring was established.

The reward of 100 gold is to be beaten by a rabbit, hoping that craftsmen will accidentally make it for a suitable use.

Inside, it is divided into several groups and tried in various different ways.

As that man said, all the quenching methods that can be used were used.

It was not until I tried to use "lead", which had a higher melting point than oil boiling but was far lower than bronze, and I melted the lead and tried to quench it, and finally made a breakthrough.

The attempts a few days ago seemed to work, and this time it was a repeated experiment.

First, it is forged with cooked iron to make carburized steel, then it is quickly quenched with water, and after quenching, it is crucible to transform lead.

Then put the leaf spring quenched in the water into lead water, wait for the lead water to solidify, then melt the lead, pinch it out with pliers, and cool it naturally.

They don't understand the specific principles.

As for the means, the 100 people spent ten years trying the method that could quench with a melting point lower than the temperature of iron smelting.

Expensive castor oil and sesame oil, I don’t know how much it consumes.

I don’t know how many strange things have been added to the water used for quenching.

Just a few days ago, a leaf spring that seemed to be qualified finally came out.

Those who are in charge of this matter today, who have changed from a young man to a middle-aged man, gather here, waiting for the result for a while.

The cooled small leaf spring was tied with silk thread, and the experimenter carefully added weights under it.

When the weight of ten kilograms was pressed up, the leaf spring that carries the efforts of more than a hundred people for ten years was still persisting, and the crowd had already shouted excitedly.

"Fifteen kilograms! Fifteen kilograms are enough! As long as you can get 15 kilograms of force, you can rub flint, making the rate of firing at about 70%.

"Stand up!"

The craftsmen who had been struggling in this matter for ten years shouted in unison, as if the leaf spring could hear their call.

The craftsman who was responsible for adding weights was covered with sweat on his forehead, and another pound of weight was placed on it, then cut the thread short and bounced straight.

Tie the silk thread again and repeat the original movement, many people's hearts seemed to jump into their throats.

Twelve pounds.

Thirteen pounds.

Fifteen kilograms.

Eighteen pounds...

When the last weight was put on, the moment the cut wire was straightened again, waves of howling burst out from the room.

"It's done!"

"It's done!"

"Go to the fuck! Never use it again!"

A craftsman with gray hair suddenly knelt on the ground and started crying.

His son died when he was in service, and the fire caused by the fire of gunpowder caused by the fuse was just a very common cause. It is normal that such a thing will be heard seven or eight times a year.

And the former young man who has been responsible for making leaf springs since he learned some things systematically, stretched out his hand to caress the small leaf spring.

He was sure that his child had never touched it so carefully when he was born.

More than a hundred people, ten years of hard work, are such a small leaf spring.

He bent the leaf spring hard and aimed it at his legs. Suddenly he let go. The huge elastic force whipped his legs and felt a sharp pain, but he laughed.

No one thinks he is stupid, and no one thinks that there is anything wrong with laughing and crying.

For nearly ten years, all the lives of these people revolve around this small leaf spring. It only took them ten months to have a child, and it took them ten years.

In their eyes, this small leaf spring is the military medal on the chest of soldiers, the truth in the books written by Mr. Xu, the Mo family built by Zi Mozi, and the world that Zhou Gong enfeoffed...

That is something people will still remember many years later, and that is also their greatest pride and greatest achievement in their lifetime.

The child who used to study is now middle-aged, but now he is relieved.

The gift he gave to him that year was finally paid off after ten years of youth.

After laughing, the person in charge did not talk about the significance of this thing to benefit the world because there is no need to talk about it.

He held the leaf spring and said something very lifelike.

"Go and buy a firecracker! Celebrate."

"Go directly to the Du branch and get the hundred gold coins!"

"Bare for one month!"

"Send someone, hurry up and buy tickets for theaters in the city, and go to the best restaurant to buy them. Get drunk tonight and watch the show later! The number of tickets is as much as the wife and son. We will also bring our wife and son tonight's banquet! We will directly leave the account and get the money back and pay it back."

boom……
Chapter completed!