Regarding Haiyin's proposal to enter these cottages to visit, Li Yi and others also agreed very much.

It's just that in the face of this proposal, Yang Ping was embarrassed.

"If it's really inconvenient, forget it."

Hai Yin had already seen that Yang Ping and Yang Ping seemed to have some difficulties.

"Actually, it's not difficult to get into these cottages, after all, there are only ore left in these cottages except for the stonemasons who mine ore."

Yang Ping struggled for a while and finally said something.

"It's just that we have to find a reasonable excuse to enter, and we can enter it on the pretext of assisting the cottage in transporting ore, but then we may have to delay for half a day."

Since Yang Ping, Li Yi and others acted in teams, Li Yi and others had to be willing to delay for half a day.

After understanding the reason for Yang Ping's entanglement, Li Yi and the others exchanged opinions with each other, and finally everyone agreed to delay for half a day in this cottage and board overnight and set off early tomorrow morning.

Then, under the leadership of Yang Ping, they entered a relatively large cottage in front.

When they were about to enter the door of the cottage, they found that there was a long queue at the entrance of the cottage.

The long queue consisted of small carts, surrounded on four sides by wooden planks, which looked like rectangular boxes.

The wheels of these cars are also made of wood, except that the axles and sleeves of these cars are covered with a metal ring.

The metal ring rotates with the wheels.

Li Yi couldn't help but be taken aback when he saw the thing on the wheels of the trolley, because this thing was very similar to what his master had told him: bearings.

As for this bearing, he saw it when he was looking through his master's collection and saw a book pressed at the bottom of the bookcase.

And the unnamed book, because it has been pressed to the bottom of the box for many years, some of the paper has turned yellow and moldy.

But when he opened and read the book, he realized that all the records in this book were tricks.

There are all kinds of drawings and annotations, including not only common mechanical objects but also strange things.

These include balls and iron birds that can take people into the sky, and boats that can take people down to the bottom of the water.

When he saw these things, he was directly speechless.

Later, he also shared the book with Liu Yu, and according to the drawings and annotations in the book, they also made a lot of mechanical objects.

This includes a flying ball, which is a hot air balloon described in the book, and a monster wing that can fly with people, and a book that records that it is called a glider.

At the beginning, he also experimented on the slopes of the mountain, and it was indeed possible to fly a distance with people.

But later, just when they wanted to test the glider on the cliff of the back mountain, they were discovered by Master Taijizi, so they were directly beaten up.

This is also the first and only time that Li Yi has been beaten by his master.

Later, Tai Jizi confiscated the unnamed book and sternly warned them that they were not allowed to test the glider again, because if it failed, they would surely die.

After that, he and Liu Yu gave up continuing to study these tricks, after all, Professor Taijiko had too much other knowledge, and he didn't have the time and energy to study these time-consuming and labor-intensive tricks.

It's just that what they had studied at the beginning was firmly remembered by him.

And now when he saw the things on the wheels, he immediately remembered them.

As the carts loaded with ore kept coming out of the cottage, the carts in front of them kept going in.

Li Yi even saw that when going downhill, the drivers of these cars would pull a wooden pole on the side of the car, and the car that had been accelerated down would slow down with the amplitude of the driver's pull of the wooden pole.

"I never thought that such a simple car would have bearings and brakes."

Li Yi couldn't help but muttered to himself in surprise.

"Childe has also heard of brakes and bearings?"

Because the mountain road was difficult to walk, the obese Yang Ping had to follow the team slowly, and happened to hear what Li Yi said.

"Oh! Shopkeeper Yang has also heard of these two things? ”

Li Yi's eyes couldn't help but light up, he didn't expect that this chubby shopkeeper Yang also knew bearings and brakes.

Generally speaking, it is not very difficult to make these two things, as long as someone spends a little time, it is still possible to make them, but the fact that the name is the same as that of the nameless book only means that this thing should have been spread a long time ago, and it was not created by later people alone.

It's just that Li Yi has traveled a lot of places since he came down the mountain to practice, but he has never seen these things in other places.

This can't help but make Li Yi question, to say that the person who makes these things cherishes himself and doesn't want his skills to be passed on to others, but these seemingly simple cars in front of him can be equipped, and it is conceivable that these things have been thoroughly spread in this place in Anzhou.

"Of course, before the next year, I also traveled from south to north, and these two things were used in carriages, so I have more or less learned about them."

Yang Ping touched the sweat on his head and said.

Li Yi looked at him sweating profusely and panting, and couldn't help but smile helplessly, in such a cold weather, he was the only one in the entire convoy who would sweat.

"Then why aren't the carriages of your Yang Clan Firm and the carriages of other places equipped with these two things?"

Li Yi kicked the wheels of the carriage beside him, Li Yi had seen Yang Ping before, and their carriages were all bronze bearings installed between the axles and wheels.

Although this kind of thing can also play a lubricating role, it is very inconvenient to add grease between the bearings regularly.

"Li Gongzi, you don't know this, although these two things seem to have a simple structure, they are very difficult to make them, so they are relatively expensive, so they have not been popularized outside."

Yang Ping sighed and said.

"It's very difficult to make?"

Li Yi was very puzzled, just taking this bearing as an example, it was nothing more than adding a small steel cylinder between two steel rings.

"Of course, when these bearings are made, we first have to choose more wear-resistant steel, and then pour out the two large and small snares, and then pour small cylinders, and then polish them smoothly together, which is extremely time-consuming and cumbersome to make."

Yang Ping explained while giving Li Yi a gesture of the bearing.

Li Yi couldn't help but start to wonder when he heard this, according to the book he saw, the processing of these bearings should use lathes.

With this thing, the speed of producing bearings can be greatly increased.

"But now we see that these vehicles transporting iron ore in Anzhou are loaded with bearings, so it can be seen that there should be a lot of them!"

Li Yi asked puzzled.

"This is the special feature of Anzhou, Anzhou is known as the craftsman state in the Dayu Dynasty, the people of this state are good at making all kinds of organs, and under the leadership of the Jiedu envoy, the entire Anzhou has a large area of use of various organs, but the Dayu court has issued a ban to strictly prohibit the flow of Anzhou's organs out of Anzhou."

"Oh? And this kind of thing? So what are the things in Anzhou? ”

Qi Ning was very interested in this strange novelty.

"Miss Qi, do you see that there will be one in this village soon!"

At this time, the team happened to be lined up, Yang Ping pointed to something in the open space in the center of the cottage and said.

The crowd looked at the place he pointed, and there was something strange in the middle of a flat clearing in the middle of the stockade.

One of the most striking things is a tall wooden cylindrical object that has been erected.

There is a similar bucket underneath this cylindrical thing.

The thing looked to be five or six meters long, about a man in diameter, and the entire cylinder was horizontally perched in the air.

The cylinder is also slightly tilted, and at the same time one end of the cylinder is pulled by a rope, and several donkeys are attached to the other end of the rope.

As the donkey moved, the cylindrical object spun around, and the bucket below began to rain down tiny iron ore.

At the short end of the cylinder, larger particles of ore tumbled down into an iron-clad trough.

There are craftsmen pushing trolleys under this trough and bucket waiting to be unloaded.

Walking towards the registration office of the village, Li Yi and the others saw that there was a long waterwheel-like thing at the higher end of the cylinder transporting a bucket of ore into the column, and this long waterwheel-like thing was also driven by a donkey.

Seeing this, Qi Ning and Qi Chao had already opened their mouths in complete surprise.

Li Yi was also completely shocked when he saw this, in fact, he understood the principles of these things, but this was the first time he had seen these organs used in production.

In addition, the volume of these things is very large, so it is particularly shocking.

"Shopkeeper Yang, isn't this cylindrical sieve made of wood easily worn down by stones?"

Keiko was amazed to see that there was such a strange mechanism.

"Jing Gongzi, you knocked on the trough of the blanking and the bucket for the feeding, all of which are inlaid with iron sheets, and this big sieve is also inlaid with iron sheets full of small holes, so it is very wear-resistant."

Yang Ping introduced him.

After the initial shock, Li Yi began to step forward to carefully observe the structure of these mechanisms.

When he got closer, he realized that the huge sieve and the hopper for loading were connected by gears.

As the donkeys and mules pulled the ropes and moved them, the gears that were joined together began to turn rapidly.

Then Yang Ping went to the stockade to find the steward to discuss the transportation of ore, while Li Yi and the others began to look at the stockade with curiosity like countrymen entering the city.

Following the craftsmen who pushed the ore, Li Yi and the others came to the west of the stockade again, and the sound here was very loud, and Li Yi and the others found that this was the place where the ore was crushed.

Here again, they saw the wisdom of the craftsmen that allowed them to see them.

Set up these strange traps in this area of crushed ore.

On all four sides of the object is a shelf made of wood, and in the middle of the shelf are two things, one on top of the other.

Below is a piece of iron with a depression in the middle, while above is a convex piece of iron with a diameter of nearly two meters.

The iron block above is suspended in the air with a rope, and the craftsman pulls a lever on the shelf as the craftsmen place the stones of various sizes into the hollows below.

Immediately, the suspended iron block "clanged" and smashed down, and the stone that had been placed on the iron block below was smashed.

Then the craftsman directed a mule to slowly pull a rope, and the huge piece of iron was slowly pulled up by the mule.

"Isn't this mule a monster? How much strength you have? ”

Seeing that a single mule could pull that huge piece of iron surprised Hai Yin on the side.

If you want to say that since Li Yi and his party entered this cottage, who has been most shocked is Hai Yin and Yu Zhenlei.

They never imagined that the Great Yu people could use the objects of the mechanism in such a situation.

"Where are there any monsters in this world, it's just that this iron block has a pulley set on it."

Li Yi smiled and pointed to a long strip hanging from the iron block.

"Senior brother, what kind of slippery group or something, can you make things lighter?"

The second senior brother Mu Junhe, who didn't talk much from beginning to end, finally opened his mouth and asked a question.

"Of course, this thing can amplify your strength and make what is already heavy to pull lighter."

As soon as Li Yi finished speaking, Mu Junhe walked towards a craftsman who was about to drive the mule.

I saw that he pushed the craftsman away, and then pulled the rope with one hand, and then stood firmly on his feet and pulled up the big iron block with a fierce force.

Then he put down the rope and tried again, and lifted the large piece of iron directly with his hands, but this time the large piece of iron did not move.

"Senior brother, what is the principle of this?"

Before Mu Junhe could ask, Jingzi was hurriedly asking.

"Oh, this should be the so-called principle of mechanics, I don't know much about it, I found a book from the master and saw these things, but later I and Brother Liu Yu were ready to test the glider we made, and wanted to fly into the sky but were stopped by the master, and the book was taken back by the master."

"Can people still fly into the sky?"

Qi Ning opened his mouth wide and exclaimed in surprise.

"Well, we tried it on a hillside with a small slope to make people float in the air, but the distance we tested at that time was too short, and we only stayed in the air for a few dozen breaths."

Li Yi said that he was also a little regretful, but after being strictly banned by Tai Jizi, they didn't dare to test it anymore.

At this time, everyone's eyes were focused on him, and even Yang Ping, who had just finished negotiating with the steward, looked at him with burning eyes.

Li Yi was very uncomfortable by everyone's eyes.

"What are you looking at me like that?"

"Since Master is so eccentric, I have handed over such a magical knowledge to you!"

Keiko was crying out with a sad face and dissatisfied.

"That book was found by me and Brother Liu Yu at the bottom of one of Master's boxes, not taught to me by Master, strictly speaking, I am a stealer."

Li Yi scratched his head embarrassedly as he spoke.

And Jingzi was still looking at him with some resentment, while the others looked at him with a look of awe.

But among the crowd, only Yang Ping's gaze was different.