Li Zhe said: "The people are also helpless, they live far away from the city, and it takes a lot of time to go back and forth every day.

It's the end of summer now, and it's better, but if it's winter, the people will leave the market even earlier. ”

Li Zhi thought for a while and then said, "Li Changshi, you said that it would be good if the imperial court specially ordered a batch of carriages to transport the people to and from Chang'an City?" ”

Li Zhe was stunned for a moment after listening to Li Zhi's proposal, and then he asked suspiciously, "How could His Highness have such an idea?"

Horse-drawn carriages have limited carrying capacity and the cost of raising horses is high, so it can be expensive to keep them running.

At that time, if the people take Jingzhao Mansion for free, they will definitely not be able to afford it, but if they charge the people, no one will be willing to spend money to ride. ”

After listening to Li Zhe's words, Li Zhi touched his chin and said, "What if these vehicles are not pulled by horses?" ”

Li Zhe said: "What can be replaced without being pulled by horses?" If you use manpower, won't you pull less goods? ”

Li Zhi said: "This king already has a draft in his heart, and after returning to the city, this king will inquire first." ”

Li Zhi was thinking of buses at this time, but he didn't know much about the current research progress of the engine.

Therefore, he needs to go to the prison and inquire about it first.

He also thought of bicycles.

Now that the supply of rubber is sufficient, all the conditions are in place for universal bicycles.

After Li Zhi returned to Chang'an City, he first found Pei Mingli and asked him to start producing bicycles.

This stuff isn't too technical.

Li Zhi simply sketched a few drawings and handed them to Pei Mingli, and then came to the general prison again.

The research on the engine was carried out by Yan Liben and Li Jing's eldest son Li Dejian and others.

They have already designed special production equipment based on the prototype left by Li Zhi.

In the process, they also made a few real ones by themselves, but the results of the experiment were not very good.

First, the processing accuracy of the previous equipment was insufficient, resulting in a large and small gap between the cylinder barrel and the piston.

This makes the whole machine work very unstable and shakes very much.

The second is that various sealing parts cannot be mass-produced due to the influence of machining accuracy, resulting in different sizes of each component.

Once it needs to be replaced, it takes a long time.

Today, they are using electric machines to machine these components.

Once the required accuracy has been achieved, mass production is possible.

Now that he had come here, Li Zhi took the opportunity to inquire about the development of the steam locomotive.

Then he was taken by Yan Lide to a very large workshop located outside the city.

The workshop has a long railway track that runs from the workshop into the distance.

At this time, there was a large steam locomotive lying on the railroad tracks.

More than a dozen craftsmen were measuring around the front of the car, and it seemed that there was a problem with that part of the part.

Yan Lide said to Li Zhi: "Now the train has been able to run, but limited to the previous machining accuracy, there are always some parts that are defective.

As a result, the train never ran at the design target. ”

Li Zhi looked at the front of the car in front of him and said, "It's good to be able to start running."

With the use of electric machine tools, the accuracy should be able to improve a lot. ”

Yan Lide spoke: "Is there any way Your Highness can improve the accuracy of measurement?"

We consider that it may be due to the lack of measurement accuracy that causes machining difficulties. ”

Li Zhi immediately reacted after listening to Yan Lide's words.

This machining accuracy has always been limited by the measurement accuracy.

Although the supervisor uses advanced equipment, but there is no advanced measuring tools to match, how can we produce good products?

So he hurriedly drew some of the mechanical tools he knew on the drawings and explained the uses in detail.

In addition, he also popularized the development direction of measuring tools to Yan Lide.

Let him take the time to discuss with Li Su how to make it.

Now that Li Zhi has almost exhausted the things in his head, the rest can only wait for the accumulation of time for more people to conduct subdivision research.

After this batch of scientific and technological achievements comes out, Li Zhi will go and suggest to Li Shimin that more colleges be opened in various parts of the country.

These colleges will mainly teach the knowledge of mathematics, physics and chemistry, and reserve industrial talents for Datang.

As for whether these people can become officials, that is a question that Li Shimin needs to consider, and Li Zhi does not plan to meddle in this aspect of affairs for the time being.

After inspecting the progress of the steam train, Li Zhi returned to his palace.

In the next period of time, he will also propose the direction of development in the future according to the current degree of development of science and technology.

In this way, those students will not take a detour and affect the speed of scientific and technological progress.

At this time, in a post station forty miles outside Chang'an City, Wu Zetian's mother and daughter were sitting under the lamp and talking.

Yang opened his mouth and said: "I will enter Chang'an City tomorrow, and I can't help but be a little nervous in my mother's heart."

I don't know if His Royal Highness King Jin is easy to get along with. ”

Wu Zetian said, "Mother, don't worry.

My daughter has thought clearly in the past few days, if there are too many rules in the palace of His Royal Highness King Jin, you and my mother and daughter will move out.

The daughter asked herself if she could support her mother on her own. ”

Yang said: "Li Changshi has already given up his face for my mother and daughter, and if you and I move away easily, I am afraid it will make it difficult to do."

If King Jin wasn't too harsh, you wouldn't have to think like this lightly. ”

Wu Zetian opened his mouth and said: "It's okay for my daughter to be wronged, but my daughter can't see her mother being bullied by others again."

Even if the other party is the daughter of His Royal Highness the King of Jin, who leans towards the government and the opposition, she is not afraid. ”

Yang got up and took Wu Zetian in his arms and said, "You kid is just too strong.

Your two brothers are still like this to my mother and daughter, how can everything go well when they are away from home?

You need to know that all living beings in this world are living for themselves, how can others have the heart to take care of your feelings at all times? ”

Wu Zetian opened his mouth and said: "My daughter doesn't care about this, how others treat me, my daughter will pay him back tenfold."

The two elder brothers bullied our mother and daughter like this, and treated his daughter like this, and he will definitely repay it ten times more when he has the ability. ”

Yang sighed and said, "Silly boy, when will you be able to retribution?"

You and I only need to live our own lives in the future, and as for those two unfilial sons, I don't want to mention them anymore. ”

Wu Zetian said: "A mother is only bullied if she is soft-hearted, and her daughter doesn't want to follow in her mother's footsteps."

Whenever someone wants to bully his daughter, let him see what she does. ”

Yang shook his head and said, "Why bother? Where can everything go smoothly in a person's life? ”

Wu Zetian did not speak again after listening to Yang's words.

However, her previous bullying by her two brothers has had a great impact on her psychology.