Datang Library

Moreover, the drawings were sent to the government offices of various states in the north, and the chief officials of the various places were ordered to strictly follow this rule. If there were any mistakes, they would be severely punished!

According to Bai Fan's suggestion, let Li Chunfeng from Laojunguan bring a group of talents to follow the engineering team and choose shallow water areas where wells can be drilled. Only such talents who understand the hydrological environment can do it. If you drill a dry well in the place, it will delay your work!

After staying in Chang'an for three days, Bai Fan finally had time to return to the academy. After a little preparation, he summoned all the students of the academy!

"A few days ago, the imperial court discovered that there will be a catastrophe this year, an unprecedented drought! It will spread all over the northern states.

All of you present here are basically the children of officials in the court, or some of them are poor children from my beggar gang!

Maybe you don't know what the drought represents!

But you have to learn to know, that will lead to thousands of miles of red land and starvation everywhere!

God will not rain for several months, the fields will dry up, and the seedlings will die before they mature. At that time, there will be no grain output in the fields, and the people will have no water to drink. Everyone is facing a crisis of survival!

At that time, many people may be killed or injured in the northern land, countless families will be ruined, and countless children will become orphans and beggars. The situation is absolutely terrible!

Therefore, you are the descendants of the officials, and you have the responsibility to inherit the ancestral business and protect our fellow citizens!

You are beggars and orphans. Since you can eat and wear clothes today, you will naturally go back to protect the land that gave birth to us!

Zhongnan Academy takes protecting the Huaxia Human Race as its mission, we cannot just ignore the national crisis! "

There is a large group of children in the academy, the youngest are only in their twenties, the rest are in their teens and understand something, and there are a few in their early twenties, who are nearly twenties, and they are already in a commotion after hearing such a big disaster up!

The children from the beggar gang knew the tragedy, and their expressions were particularly angry!

I saw someone taking the lead and shouting, "Protect China, let's go to the national calamity together!"

Gradually everyone was shouting, and the sound spread throughout the entire Zhongnan Academy, over and over again, far and far away!

Bai Fan happily pressed all the students!

"In the next ten days, I will teach a course in the academy, called physics, as the name suggests, it is to explore the principles of all things!

Students over ten years old, come and listen!

Students under the age of ten can't understand such a deep thing, I have other tasks to arrange!

This course is only open for ten days for the time being, and it is specially set up for this disaster relief. After the country is stabilized, the academy will continue to open it. Anyone who is old enough can learn it if they are interested!

Now, all your studies have only one purpose, and that is for this disaster prevention and relief!

After ten days, those who have learned something, I will send you to various regions to help preside over a task. If you can't learn it, stay and follow me, and there are other tasks assigned! "

What did Bai Fan do?In fact, it's nothing, just spent ten days teaching what is called a pressurized well!How Pressurized Wells Work!

While talking about this, I also made a small model out of wood to demonstrate the experiment, and the task of the children under the age of ten is to disassemble this wooden model over and over again, and then put it together into a successful pressurized well!

Bai Fan clearly knows that even if a well is drilled, there must be equipment for drawing water. It is too inefficient to lift water in buckets by manpower, so in the drawings for making equipment for various places, he deliberately added this iron one. Pressurized well equipment!

The pressurized well relies on atmospheric pressure to press the water up to the top, and the limit height is about ten meters. No matter how deep the well is, the manual pressurized well cannot pump it out, and only electric water pumps can be used. Don’t even think about it in Datang!

The reason why I tell this to children over the age of ten is to let them go to various northern state roads to work as maintenance workers. Only when they understand the principle of water pressure wells can they know why water cannot be pressured when using it!

This group of children spent ten days learning it, and then went to various places to direct the splicing of pressurized wells, and also taught the local people how to use and maintain pressurized wells!

Due to limited conditions, this kind of pressurized well is relatively simple, so we can only use ten-meter-long bamboo to get through the bamboo joints to make water pipes, otherwise there is no iron pipe and other things that are so well sealed!

In general, the failure of pressurized water wells often occurs on air leakage, so Bai Fan took great pains to teach the students what air is, what is sealing, what is air pressure, and so on!

The reason for doing this in the academy is not only to train the students to participate in state affairs, but also to let them see and experience a disaster with their own eyes!

Bai Fan knew in his heart that this severe drought did not lie in the battle to fight the drought and fetch water. Within three months, the fight to fight the drought and fetch water could only save [-]% of the land and people, because not every place is suitable for digging wells for water!

The focus is still on the overall planning and transportation of grain by the imperial court. The fields are destined to have no harvest, so it is definitely a big problem to feed all the people in the north. If the imperial court fails to do so, there will only be one consequence, that is, the people will flee southward one after another. !

Ten days later, Bai Fan sent out all the students from the academy, but luckily none of them were lumpy, and they could all understand this simple physics class!The younger ones and the older ones went to help splice the equipment together, and the older ones were mainly responsible for teaching the common people to use it!These students all went with Li Er's imperial order, so the local officials did not dare to neglect!

Among them, Cheng Huaimo, Changsun Chong, Qin Huaidao, Li Chengdao, Li Chengde and other older students were not asked to do this. As a training, Bai Fan asked them to go to the south and Sichuan respectively to follow the government's decree and help The matter of buying and transporting food!

Regarding the arrangement of the students, Li Er readily agreed, and he also wanted to see how capable these children are after a year of teaching!

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End of this chapter

Chapter 149 Zhongnan Academy in Action

In May of the first year of Zhenguan in the Tang Dynasty, Emperor Li Er's desk had his case files secretly investigated!

In the entire northern land, it has not rained for two whole months!

It seems that Daoist Yuan's prediction is about to come true. According to Bai Fan's plan, all the prefectures in Datang are intensively drilling wells, and those places without drilling equipment have consciously started digging wells with earthen methods!

However, the results were not satisfactory. Many places failed to produce water. It was not because there were no technicians to explore, but because the weather was severe and the groundwater level dropped.

This news directly wiped out half of Li Er's enthusiasm for fighting the drought!

It seems that the difficulty of fetching water for disaster relief has become even greater, and it is almost impossible to keep [-]% of the harvest!

In the political hall, Li Er and Bai Fan were seated as guests and hosts!

"Boy, your water-taking machine and well-drilling machine are very useful, but what a pity!

The drought was so severe that many smaller rivers and mountain springs dried up!The wells dug have only a [-]% water yield!

Moreover, the output of Datang Iron and Steel is too small. Due to insufficient materials in various places this time, it is impossible to build more drilling machines and pumping machines, so the situation is not optimistic!

In the current situation, what can you do? " Li Er asked with a frown.

Bai Fan looked calm, obviously this result was within expectations!

He sighed and said, "Your Majesty, due to technical limitations, it is God's blessing that we can produce [-]% of the water! The focus of this catastrophe is not on fetching water for irrigation!

The point is to raise food and grass!There is also the follow-up locust extermination!

According to calculations in ancient books, locusts will be unearthed in a while, and we need to get ready as soon as possible!

Call on the people to raise more chickens and ducks, and then just in time for the locusts to emerge, the chickens and ducks will be put into the fields when they grow up. Anyway, the harvest or production has been reduced, and they are not afraid of the chickens and ducks eating food!

Moreover, there are so many locusts in the field that they can’t finish eating. Chickens and ducks will not eat food if there are meat insects to eat. In this way, we can kill a large part of the locusts in their infancy! "

"However, it's not easy! People are short of rations, so how can they spend food to feed the extra chickens and ducks? Besides, in a short period of time, there are not enough seedlings of chickens and ducks!" Li Er has already studied drought and locust control. One month, so these things are very clear!

"As for seedlings, I have the secret method of incubating on a heated kang, and it can emerge from the nest in 20 days. The effect is very good. We can spread it to the following places like before!