Yu Shinan noticed that it was extraordinary and hurried to read these amazing articles in person.

After getting the test paper, in fact, when you really talk about the article, you have to say how good it is, and you will always feel that there are many shortcomings compared to the truly good articles, and as for those masterpieces that have passed through the ages, it is even worse.

But... this is the test paper.

The famous works of eternal history are inspired by feelings, but now this test paper is a topic-setting essay.

What's more, the time for the exam is limited, and the questions you have prepared are particularly difficult. If a talented person spends ten days and half a month writing an article, it may be amazing.

But like this, only two hours of test is a problem for many people, whether they can solve the problem is a problem. Even if they can solve the problem, it is another difficulty to meet the meaning of the question.

What's more, it is necessary to extend the truth, and only those who have actually done the question will know the difficulty.

Therefore, this not-stunning article still shocked Yu Shinan, because even if you ask yourself, can you write a qualified article under this difficult question?

He continued to read, there were not only one or two such articles, but many.

This made Yu Shinan a little confused.

Could it be...a leaked the question?

No, it is absolutely impossible.

Fraud is never allowed in the big exam, so countless measures have been taken, and leaking the question means the crime of scattering the family and extermination. Moreover, before this question was released, only the examiner in the world knew about this question, and he had been in the Minglun Hall for this period and had no contact with the outside world.

But...unless you see a ghost, you really can't think of any other reason.

This suddenly... made Yu Shinan feel a little ashamed.

I thought I had thought hard and came up with a good question. This big exam would definitely shock the four students, causing countless students to scrape their stomachs and scratch their heads and ears.

But I don’t know... there are quite a few people who can write articles.

"Is my Tang Dynasty literary spirit so far?" Yu Shinan said awkwardly.

The other examiners knew it in their hearts. Mr. Yu was obviously quite content with the questions he had asked, but he didn't know that Mr. Yu underestimated these candidates, so he used the great literary spirit of the Tang Dynasty to cover up the embarrassment.

But at this time, who dared to say something wrong? So they nodded and said, "No, not bad, what Mr. Yu said is very much."

…………

The difficulty of the test questions has been spread throughout Chang'an, but there are also many people who think they have good exams. They are quite confident in their articles. The city of Chang'an is full of controversy, but Erpigou University is very low-key!

After the university students finished the exam, they went back to the school directly, and then kept their doors away and continued to study hard.

For the teaching and research group, this is just a big test. There is a general examination next, so where is the possibility of half a score relaxation?

However, this university is surprisingly low-key, but it is inevitable that there will be a lot of ridicule. It is said that the skill of the university is now exhausted.

In fact, this is understandable. The theory of bloodline is the mainstream in this era. People firmly believe that different people have different blood flowing on their bodies. The blood of the aristocratic race is purer, followed by poor families. As for ordinary people, they are too dirty.

Before, the University Hall won a surprise victory, and now the aristocratic tribes have begun to follow suit, so... the University Hall has no capital anymore.

Of course, this is just a topic of conversation after dinner.

Although Chen Zhengtai couldn't help but get angry when he heard this, he couldn't tie the people up and beat them up. Fortunately, in Erpigou, everyone still had confidence in the university.

At this time, the craftsman's house came excitedly because the new bearings had been made.

This bearing has been improved time and time again and again, and is getting closer and closer to practicality.

Ancient craftsmen often used the ingenious skills of some fine objects as their direction, but since the workshops were established, everything became different.

For craftsmen, dozens of craftsmen with superb skills polish it day and night, so it is certainly no problem to make a few bearings that are close to perfection.

But the problem is that with the emergence of the workshop economy, craftsmen's houses must not only consider the problem of craftsmanship, but also consider the cost of large-scale manufacturing.

Now... this ball bearing is in Chen Zhengtai's hands. Chen Zhengtai feels quite heavy. There are balls between the inner shaft and the outer shaft. Once the outer shaft rotates, the balls inside will also roll, and the entire bearing appears extremely smooth.

Chen Zhengtai played with it for a while and was excited: "Can such bearings be manufactured on a large scale?"

"The steel workshop has specially made abrasive tools. After large-scale grinding, the craftsman still needs to be polished manually to achieve accuracy. Now, if it is produced, it will be no problem to produce thirty pairs a day, but... if some improvements are made, some processes are reduced, and a group of new craftsmen are trained, etc., the output will definitely increase on a large scale."

Jiang Zuofang dared not deceive Chen Zhengtai and answered honestly.

Chen Zhengtai's eyes lit up, but he said, "What if... what if... this thing was used to connect the wheels of the carriage? Look, the outer shaft is in the carriage... wouldn't this carriage be twice the result with half the effort?"

Several craftsmen in the craftsman's house were stunned.

One of them was also a member of the Chen family. When he heard this, he raised his eyebrows... He suddenly understood what Chen Zhengtai meant.

In this era, there was no large-scale popularization of sedan chairs. However, in the south, because of the rugged mountain roads, sedan chairs appeared. At this time, the center of economy, politics and culture was in the north, and there were many plains in the north, so most people were used to carriages. Even if the emperor traveled, carriages were mostly carriages.

However, the carriages of this era have a bit of indescribable flavor.

On the one hand, there is no good bearing, so the friction between the wheel and shaft is very strong, which is fraught.

On the other hand, because there is no rotation shaft in the chassis, most of the carriages are two wheels.

There is no way to do this. After all, the axles and wheels are mostly made of wooden and have high friction, so it is still very difficult to walk against muddy roads when used!

Compared with four-wheeled carriages, two-wheeled carriages are faster to walk on such roads. In ancient times, the ground was mostly uneven. On such roads, four-wheeled carriages were indeed a bit difficult to walk, and it was difficult to pull a horse.

What's more, the steering of a four-wheeled carriage is a big problem.

Because of this, most carriages only have two wheels, and the comfort of these two wheels is extremely poor, and they are very bumpy when sitting. This is why the sedan quickly became popular after it appeared.

Chen Zhengtai’s idea is very simple. Now with this bearing, the friction can be greatly reduced. If the chassis of the carriage is improved, it will be even more appropriate.

After Chen Zhengtai mentioned this, the craftsman suddenly seemed to have gained enlightenment.

Let’s not talk about the windmill for now, right now, isn’t this carriage usable?

Chen Zhengtai repeatedly instructed: "If you want to build this carriage, you must have four wheels. The carriage can be built wider, and you can try it."

The craftsmen are very motivated, after all... they have already had a lot of research experience.

Often, when you find a direction, an experienced old craftsman immediately starts to establish a project, then starts to draw personnel and allocate funds, and then starts to distribute the project into many groups. The person in charge of the project serves as the chief engineer to conduct resource allocation and the overall process of the project.

Now that the bearings come out, the concept proposed by Chen Zhengtai can be natural.

This is not too difficult.

So soon, a four-wheeled carriage was built.

Immediately afterwards, verification and improvement were carried out, and all this went very smoothly.

Especially in the suburbs, when people try to use a carriage with rolling bearings, they find that these four-wheeled carriages will never be struggling even if the road is muddy.

Four wheels are obviously much more comfortable to sit in them than two wheels, and can even be called enjoyment.

Although it is four-wheeled, the same horse, with rolling bearings, is actually stronger than the two-wheeled car, exerting its horsepower to the greatest extent.

So... a big carriage was made. The carriage was quite small, with exquisite carvings on the outside, comfortable software on the inside, and a sign was hung in front of the car... Mengjin Chen's.

Two days later, Chen Zhengtai rode the car and began to sway across the market under Xue Rengui's escort.

People were curious when they saw such a strange and exquisite car suddenly appearing on the road!

The car is spacious, and it is pulled by just one horse, but it looks ease-free. The four wheels rotate at the same time, which is particularly stable.

Chen Zhengtai, who was sitting in the car, felt like he was a different life. He had personally experienced the carriage with two wheels. To be honest, such a carriage would be a pain in it. But now... he finally enjoyed it.

Because of the bearings, even the noise in the car is much less.

And because of its size, the whole person could almost half lie in the soft cushion. After taking a nap, the carriage stopped and the driver in front of him drove the carriage, quite cautious.

However... he seemed to be very satisfied with the new carriage.

If it is a two-wheeled carriage, his driving position is often narrow and the road is bumpy. In many places, the driver cannot sit in the car to catch the car. He must get out of the car and lead the horse forward.

But now, I sat here comfortably, holding a whip in my hand and controlling the speed of the horse. Although the carriage behind me was heavy, the horse's horsepower was enough.

In the past, two-wheeled carriages often had just a curtain to isolate the carriage from the outside world, and the noise was also high.

Now, a car door is specially designed for this car, and Chen Zhengtai opened the car door from inside and came out.

Then, when I saw that many people looked around outside the carriage, they looked around with a rare look, and they all looked at each other with a slight tribute.

In front of me was the Tai Chi Gate. Many court officials were preparing to enter the palace to meet or be on duty. At this time, the palace gate had not opened yet. These ministers with goldfish bags tied around their waists were waiting here as usual.

Suddenly, I saw a carriage like this coming, so I wanted to see it.

"Is this horse so majestic? It can pull such a wide car?"

The Tang people still loved horses, and civil officials were no exception. This was the atmosphere, so many people had doubts.

Some people also found that this horse seemed to have nothing special about its breed.

And... this car has four wheels, four wheels, how can it turn?

People like Fang Xuanling and Changsun Wuji are still very dignified after all, so they didn't join in the fun. They just stopped in front of the palace gate, looking like an old god.

But others may not be able to do so.

Just as everyone was talking enthusiastically, the car door suddenly opened and Chen Zhengtai came out of it.

Suddenly, many people's faces changed slightly, and then... they rolled their eyes and scattered in a flash.

The interest just now was also wiped out.

Humph... The Chen family is showing off their wealth!

Isn't it just four wheels?
To be continued...