The study of agriculture can help Datang people quickly improve their farming, and only when agricultural productivity is improved, can there be more idle people to invest in various workshops and improve their living standards.

You must know that Fan Jingjing has designed a lot of farm tools, but Jiang Blacksmith's workshop is not very willing to make these farm tools.

There is an arrangement for production, but because the production of farm tools can not bring much profit, Jiang Blacksmith must also put the interests of production in front of him, after all, Jiang Blacksmith and Fan Family Manor are consistent interests, so Jiang Blacksmith must give employees a high salary.

But if you want to pay your employees a high salary, you must be able to make a big profit, and work efficiency is like this, and if you want to make a bigger profit, if you want to make a bigger profit, if you all produce farm tools, some of them must be distributed for free, and the burden on the blacksmith's workshop is too great.

The blacksmith's workshop can't easily produce a lot of products like other workshops, and the blacksmith's workshop is not easy to expand.

It is a very big problem to let a person learn to strike iron safely, without burning himself, and not feeling very uncomfortable because it is too hot.

Being a blacksmith can gain the respect of the people, but it is not a very good job because it has to endure very high temperatures, although Fan Jingjing has discussed with Jiang Blacksmith how to use a blast furnace to produce iron.

The blast furnace allows them to work next to hot temperatures all the time, and the closed production of the blast furnace saves fuel.

But Fan Jingjing also knows that if you want to use blast furnace production, the problem of fuel must be solved, but burning wood to make a fire can indeed produce a high temperature of thousands of degrees, but it is not as efficient as coal.

Fan Jingjing has started to use coal in the Fan family manor, but the amount used has never been too large.

If you want to dig coal mines near Qinling, it is not too difficult to do it, the largest coal mining area, Fan Jingjing also knows that Jindi is a large production area of coal mines, and there are many coal mines in northern Shaanxi, which will not be too far from Chang'an, even if the traffic is not convenient, because the coal mine is not easy to damage, and it is relatively convenient to transport.

Not to mention the fact that there is also a river transport between the two places.

The rivers of the Tang Dynasty are not as turbulent as the rivers of later generations, nor are they too turbulent.

The boats on it can travel on most of the river.

Even if you want to cross the Hukou Waterfall, you need to use people to pull it, but it is only a short distance.

Although the biggest problem of this era is that there are no bridges in these sections of the river, sometimes when crossing the river, people use horse-drawn carts to step directly over them, and if there is no smooth section, the cars may fall apart.

People may also be swept away by the sudden rush in the past, and walking long distances is an absolutely dangerous thing in this day and age.

Not only the danger brought by man, nature will also give various challenges to human beings, for nature, how the river flows is a natural thing, but natural things also have various accidents, when the accident happens and someone is injured, then it is a natural disaster.

There are all kinds of natural phenomena in the Qinling Mountains, there are rivers flowing through the Fan family manor, and there are naturally all kinds of erosion situations, Fan Jingjing must review whether these erosion situations will cause any disasters anytime and anywhere, if there is a big flood in these bends, which places must be evacuated, it must be planned first.

Perhaps the life experience left by the people of the Tang Dynasty from ancient times has been passed down from generation to generation through various means.

Some people are very smart and can sum up the experience of their predecessors to cope with daily life, but most people only care about their own food, drink, lazing and sleeping.

For these catastrophes that don't often happen around you, and you don't even know the reason for the disaster, you won't pay attention to the details of Fan Jingjing's life.

It's these details of life that are the truth of catastrophe prevention.

Fan Jingjing must remove the possible causes of these disasters before they happen, if Fan Jingjing first arrived in the lobby, she would definitely be ridiculed if she wanted to do these things.

How could people believe her if it didn't happen right in front of their eyes?

However, since the incident in Shuiyun Palace, people feel that Fan Jingjing is a fairy who fell from the sky, and what she said, even if it will make them spend a lot of effort to work, they also believe that this matter is good.

What's more, in their daily life, life disasters actually occur often, and only after passing through disasters can they have a way to die of old age.

In most cases, because of various disasters, people will not live to the end of their lives, and even eat a meal, because they are not cooked and have diarrhea, and diarrhea may be pulled to death.

Datang does not have some rehydration procedures and work in later generations, if you are lucky to meet a Lang Zhong or a doctor who can know how to treat diarrhea, then you are lucky.

But most people don't have this ability, and when they encounter an unlucky situation, it really depends on whether you are lucky or unlucky.

If it is a village that has been inherited for a long time, maybe there are some medicines nearby, and some villages who don't know how to read and write Langzhong can also treat some diseases that often occur in the neighborhood through ancestral traditions, maybe you may be able to escape.

Diarrhea actually happens everywhere, so there are some tricks to treat diarrhea.

Fan Jingjing can only use her head to check and fill in the gaps as much as possible.

Although she is a person in the age of science and technology, she is not a geographer in the age of science and technology, and most of what she can know is the knowledge obtained in junior high school and high school, and she does not know too much about the rest.

Fortunately, the knowledge of junior high school and high school is already a great integration in this era, and many of them can be developed into science and technology if they are further extended, and many conclusions of science and technology have appeared.

Fan Jingjing only needs to make judgments according to the conclusions, but these knowledge structures don't seem to be too life applications, many life applications are put forward by the way when the teacher lectures, sometimes the content of the teacher's lectures is much more exciting than the content taught in the textbook, because the content of the class is almost all life-oriented, but the content of the course is often compared with the textbook, if there is no teacher's explanation in class, maybe people have no way to learn the heart when they are learning, Through various strengths, people will understand better what the textbook says.