I stayed in the prison for three days and taught the craftsmen how to use the assembly line to mass-produce large water wheels and cylinder cars! And personally created the first annular drill bit, this kind of drill bit was designed by Bai Fan according to the drawings, suitable for shallow wells in ancient times!

The ancients drilled wells, to put it bluntly, they dug pits, dug all the time, dug until the pit slowly began to seep water, and began to store water.

Once the water is dug out, the well is slowly filled from the bottom to the top, leaving a round well to be completed, so it is quite time-consuming and laborious!

According to the principle of planting trees in later generations of mechanical operations, Bai Fan designed this round drill bit, with a sawtooth structure below, with a diameter of 50 centimeters, a single drill bit half a meter high, and three detachable drill pipes cast from pure steel!

Such equipment, on the ground to support a fixed solid wood shelf, you can use manpower or animal power, drive the drill bit down to drill, every half a meter of drilling up, you can pull up a round clod, reduce the inconvenience of manual digging, greatly improve the efficiency!

Although it cannot be used to drill deep wells, it is still very practical to use only 10 meters of artificial earth wells!

After personally leading everyone to make equipment and drilling a ten-meter-deep well in two hours, the workers were boiling, it turned out that digging a well can be so convenient?

Bai Fan was also lucky, without exploring, he dug a well that could produce water!

After Li Er heard about it, he came to inspect it in person, and he was overjoyed after seeing the results! Countless blacksmiths and carpenters were mobilized from Chang'an nearby, and they worked day and night!

Moreover, the drawings were sent to the yamen of the northern state capitals, and the chief officials of all localities were ordered to build in strict accordance with this, and if there was a mistake, they would be severely punished!

According to Bai Fan's suggestion, let Li Chunfeng, who is the old gentleman, bring a group of talents to follow the engineering team and select shallow water areas that can drill wells everywhere.

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

"A few days ago, the imperial court found that there will be a catastrophe this year, an unprecedented drought! All over the northern state roads.

All of you present are basically the children of the official eunuchs in the court, or some are poor children from my beggar gang!

Maybe you don't know what the drought represents!

But you must learn to know that it will be a thousand miles of starvation!

God will not rain for several months, the fields will dry up, the seedlings will die before they reach maturity, and then there will be no food in the fields, no water to drink, and everyone will face an existential crisis!

At that time, there may be many deaths and injuries in the northern land, and countless families will be destroyed, and countless children will become orphans and beggars, and their situation will be absolutely miserable!

Therefore, you are the queen of the eunuchs, and you have the responsibility to inherit the ancestral business and protect our compatriots!

You are beggars and orphans, and now that you are well fed and clothed today, you naturally have to go back to protect the land that gave birth to us!

Zhongnan Academy takes the protection of the Chinese human race as its own responsibility, and we cannot sit idly by when the national disaster is headed! ”

There was a large group of children in the academy, the youngest ones were only about twenty people, the others were all teenagers who knew some things, and a few people in their early twenties, nearly twenty years old, were already in a commotion when they heard such a big disaster!

The children from the beggar gang knew that kind of tragedy, and their expressions were especially angry!

I saw someone taking the lead and shouting, "Protect China and go to the national disaster together!" ”

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

Bai Fan was pleased to press the students!

"In the next ten days, I will be teaching a course in the academy called 'Physics', as the name suggests, to explore the principles of all things!

Students over the age of 10 should come and attend the lecture!

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, specially designed for this disaster relief, and after the country stabilizes in the future, the academy will continue to open, and when the age comes, you can learn if you are interested!

Now, all of you are studying for one purpose, and that is for this disaster prevention and relief!

After ten days, if you have learned something, I will send you to various regions to help preside over a task, and if you can't learn, stay and follow me, and there will be another task assignment! ”

What did Bai Fan do? In fact, it's nothing, it's just that it took ten days to teach what a pressurized water well is! How pressurized water wells work!

While telling this, he also made a small model out of wood to demonstrate the experiment, and the task of those children under the age of ten was to disassemble the wooden model over and over again and put it together into a successful pressurized water well!

Bai Fan clearly knew that even if a well was drilled, there must be equipment to draw water, and the efficiency of manpower to lift water buckets and barrels was too low, so in the drawings for building equipment for various places, he deliberately added this iron pressurized water well equipment!

The pressurized water well relies on atmospheric pressure to press the water to the top, and the limit height is almost ten meters.

The reason why children over the age of 10 are told about this is that they are allowed to go to various states in the north to work as maintenance workers, and only when they understand the principle of pressurized water wells can they know why they can't press water when they use it!

This group of children spent ten days, and after learning it, they had to go to various places to direct the splicing of pressurized water wells, and also teach the local people to use and maintain pressurized water wells!

Due to the limited conditions, this kind of pressurized water well is relatively simple, so it can only be used to use ten-meter-long bamboo to open the bamboo to make a pumping pipe, otherwise there is no such a good sealed iron pipe and other things!

In general, the failure of pressurized water wells often occurs on air leakage, so Bai Fancai laboriously taught students what is air, what is sealing, what is air pressure and so on!

The reason why we do this in the academy is not only to train students to participate in national affairs, but also to see and experience a disaster with their own eyes!

Bai Fan knew in his heart that this great drought was not a battle to fight drought and get water, within three months, drought resistance and water intake could only save 30% of the land and people, because not every place is suitable for digging wells for water!

The focus is still on the overall planning of the imperial court to transport grain, the field is destined to have no harvest, so to feed all the people in the north, this grain transportation is definitely a big problem, if the court does not do well, then there is only one consequence, that is, the people have fled south!

Ten days later, Bai Fan sent all the students from the academy, but fortunately, none of them were elm pimples, and they could all understand such a simple physics class! The younger ones and the older ones went together to help splice the equipment, and the older ones were mainly responsible for teaching the people to use them! These students all went with Li Er's imperial order, so none of the local officials dared to slack off!

Among them, Cheng Huaimo, Changsun Chong, Qin Huaidao, Li Chengdao, Li Chengde and several other older grades did not let them do this too, as exercise, Bai Fan let them go to the south and Shu respectively, follow the decree of the imperial court, and help buy and transport grain!

Li Er readily agreed to the arrangement of the students, and he also wanted to see how capable this group of children was after a year of teaching!

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(End of chapter)