Jiang Shichao, the head of the household, was the escort of the potatoes harvested by the farm three times in one step, and said goodbye to Tao Ran on the road to Chang'an.

In the end, he didn't take all the silver cakes in those wooden boxes, Tao Ran opened Nanshan Academy on his own, which was a great act of kindness for the benefit of the country and the people.

He is also willing to contribute to Tao Ran's good deeds.

Therefore, Jiang Shichao only took two silver cakes and returned, and the rest were donated to Tao Ran as the college's education funds.

Tao Ran was once again moved by the officials in front of him, if all the officials above the Tang Dynasty were like this, why would the country not be strong and prosperous, and why would the national industry not be prosperous.

"Cousin, thank you for your cousin's rescue the day before yesterday, if it weren't for my cousin's teacher calling, my cousin doesn't know how much more pain I would have suffered."

Changsun Chong finally met Princess Changle after class, and hurriedly ran over to talk attentively.

"Hmph, if it weren't for the fact that you are the cousin of this princess, this princess would not bother to care."

Princess Changle pouted and said unceremoniously.

"My cousin is good to my cousin, my cousin knows it very well in my heart, thank you cousin for your concern, and my cousin will care about my cousin well in the future."

The eldest grandson said in a low voice and brazenly.

"Who cares about you? Just take care of yourself. This princess doesn't need your attention. ”

After Princess Changle finished speaking, she pouted and walked away, not even looking at Changsun Chong.

"What are you laughing at? My cousin is shy, what's so funny? ”

The eldest grandson rushed back to Fang Yiai, Du He, and Gao Cheng scolded a few classmates who covered their mouths and snickered.

Recently, Qin Huailiang has obviously changed a lot, and even General Qin feels that his son has fallen into the devil.

Whether it is eating, walking, or even sleeping at night, Qin Huailiang's mouth is full of Arabic numerals.

The hard work paid off, and when Tao Ran threw a handful of numbers in front of him again, he easily found the correct answer.

No matter who it is, even if there is a little bit of progress, Tao Ran will be very happy, how can he travel thousands of miles without hurrying!

"Huailiang, awesome. The teacher didn't expect Huailiang to improve so much. ”

Tao Ran praised from the bottom of his heart.

"It's all taught by the teacher, Huailiang will work harder."

Qin Huailiang touched his head and replied with a shy smile.

Tao Ran smiled very gratefully, there is a gap between people's receptivity and learning ability, and the only way to make up for this gap is diligence and hard work, just like the couplet at the gate of the college.

"There is a diligent path in the book mountain, and there is no end to the hard work of learning the sea."

It's not just an empty couplet, but a real guiding light that inspires students to move forward.

After a few days of running and exercising in the morning, working in the fields in the morning, and studying in the afternoon, the students not only had dirty clothes, but also a lot of mud and dirt on their bodies.

So Tao Ran told Miss Wen'er to prepare more hot water in the kitchen, and the students were provided with a good bath at night, all of them were young and young, and it was definitely not good for some key parts of the body if they didn't take a bath for a long time.

When passing by the room of Princess Changle and the eldest girl, Tao Ran suddenly realized that he seemed to have ignored something?

So Tao Ran seized the time to find a way to solve the problem of Princess Changle and the eldest girl and several other girls taking a bath.

It is estimated that it is a bit too cruel to let them carry water from the kitchen in wooden barrels, and it is impossible for Tao Ran to do this.

After thinking about it, Tao Ran had an idea, Princess Changle and their dormitory happened to be closest to the mountain spring.

Delivering water from a mountain spring to the roof of their dormitory, and then relying on strong sunlight to simply heat it by sunlight seemed to be the best way to do it.

Tao Ran immediately drew a drawing, and with his relationship with Yuan Weilei, the waiter of the Ministry of Works, there should still be hope for the craftsmen to make a waterwheel-like water wheel.

After drawing the drawings, Tao Ran immediately went down the mountain, turned over and jumped on the back of the rhubarb horse and went straight to the Ministry of Engineering.

"Yuan Shilang, I haven't seen you for a long time, I have something to trouble Shilang today."

Tao Ran said straight to the point.

"Hou Ye can just open his mouth if he has something, why be polite, without Hou Ye's guidance, how can I understand the drawings and painting drawings now. If Master Hou has something, I don't help, and I can't get over it on my conscience. ”

Yuan Weilei replied truthfully.

"Then there is Lao Yuan Shilang, the academy is waiting to be used."

After Tao Ran finished speaking, he directly said that the drawings were handed to Yuan Weilei's hands.

Yuan Weilei took the drawings and looked at them carefully.

"Master Hou, is this a waterwheel for water supply?"

"That's why you need to transport mountain spring water to the roof, so you come to trouble the waiter."

Tao Ran replied with a smile, since Yuan Weilei can see the role of the drawings at a glance, he can definitely make them.

Sure enough, after Yuan Weilei pondered for a moment, he immediately spoke.

"That's it, since it's urgent, then I'll do it myself, and strive to make it for Hou Ye tomorrow."

"In this way, I will thank the waiter, come to the academy another day, and I will definitely be entertained with good wine and food."

Tao Ran laughed and said.

"Master Hou is polite, I will definitely visit another day."

After Tao Ran returned to the college, he immediately began to work on the groundwork, to install a water tank on the roof of Changle's dormitory, not only to shelter from the wind and rain, but also to absorb the sun's rays, which really made Tao Ran spend a lot of brains.

Tao Ran now has built a simple bathroom with stones in Changle Suse, the space is not large, but it can prevent the water from splashing, and it also plays a role in shielding, and several girls have reached the age of being shy to understand.

Then in Changle's dormitory, a bamboo tube is connected to a water tank on the roof, and the water outlet is covered with fine gauze, which can control the amount of water output and filter the water quality.

It is also necessary to open a water outlet in the dormitory, so that the water can be discharged out of the house along the water outlet.

At the same time, it is also necessary to use bamboo tubes to connect them to make water pipes for later generations, from the mountain spring to the roof, and it is the best raw material for making water pipes at present.

After doing all this, he collapsed on the roof of Princess Changle and the eldest girl's dormitory.

Overhead, there is a blue sky and white clouds, and bright sunshine.

Tao Ran's heart was as quiet and quiet as this blue sky, and he knew that he was already connected with this era, and he might never be able to leave again.

"Teacher, why are you on the roof?"

"yes, brother. Why did you run to our rooftop? ”

The voices of Princess Changle and the eldest girl came from below, disrupting Tao Ran's contemplation.

"The teacher will make you a water heater that can make hot water, and you can take a hot shower in the dormitory in the future."

Tao Ran stood up and spoke, and then climbed down the ladder.

"The teacher is so good, Changle doesn't know how to thank the teacher, and even the teacher has taken care of the problem of taking a bath for Changle."

Princess Changle said sweetly with her big beautiful eyes and two sweet dimples on her cheeks.

"This is what the teacher should do, it is the teacher's negligence, and it is the teacher's fault that he only remembered to solve the problem of bathing for you after a few days of school."

Tao Ran said slightly apologetically.

"The teacher can't blame himself, Changle feels that the teacher is the best teacher in the world. Isn't it a big girl? After Changle finished speaking, he took the eldest girl's hand and asked.

"yes. The teacher is the best teacher in the world, and he is also the best brother in the world. The eldest girl also smiled and teased.

Early in the morning of the second day, Yuan Weilei, the waiter of the Ministry of Works, sent the craftsmen of the Ministry of Industry to send the waterwheel designed by Tao Ran.

Tao Ran happily welcomed them to the academy and carefully installed them in the mountain spring.

After connecting the bamboo tube to the waterwheel, you only need to gently shake the handle, and the whole waterwheel will turn.

The waterwheel drives the water into the bamboo tube, and finally transports it to the water tank on the roof when it reaches a certain pressure.

In less than a quarter of an hour, the tank was full.

"Very good, I'm sorry everyone, please have a cup of tea in the house."

Tao Ran said with a smile.

"No need Hou Ye, the waiter explained that there are still major projects to be done in the Ministry of Works this morning, and there is no delay. The boys took their leave. ”

Tao Ran watched a few craftsmen go down the mountain, and Cheng Yanjin and other four generals came over.

"I said, nephew, what kind of rare thing are you messing with. Just now, the four of us saw you shaking and shaking the roof and the water came out, what is the reason? ”

Cheng Yanjin glared at the two big bulls' eyes and asked.

"Uncle, this is a waterwheel made by the Ministry of Industry by the younger generation, which can transport the mountain spring to the roof to solve the problem of the princess bathing."

Tao Ran replied truthfully.

"Well, the virtuous nephew has a very good mind, Your Majesty and the queen must be moved if they know, but this mountain spring water, you are not afraid of washing the princess's golden branches and jade leaves out of typhoid fever?"

Cheng Yanjin kindly reminded. The three generals in the back also nodded in agreement.

It may not be a big problem for the princess not to bathe, but if typhoid fever is washed out, it is a big problem. His Majesty Li Er and Empress Changsun may have come down in anger to ask Tao Ran Xingshi for their guilt.

"Thank you uncle for reminding me, my nephew has already thought of a countermeasure, the water tank on the roof is to absorb sunlight, as long as the sun is sufficient for a day, the water temperature should be able to reach a temperature suitable for human bathing."

Tao Ran replied truthfully.

"There is such a miraculous thing, the old man is lonely and unheard, but the virtuous nephew must not be careless, and it is better to try the water temperature at dusk."

"The younger generation will remember the uncle's teachings, and they will definitely go up to test the temperature of the water, and they must not let the princess be infected with typhoid fever."

Tao Ran replied respectfully. Tao Ran is very grateful and accepting for General Cheng's kindness, since Tao Ran pulled the Sun family back from the ghost gate, the relationship between the two families can be said to be the same.

That's why General Cheng never forgot to remind Tao Ran at any time that he must be cautious in doing things.

Because he was optimistic about Tao Ran's future in the future, General Cheng Lao did not allow Tao Ran to make mistakes.

Sometimes even the smallest mistake can be fatal, creating an irreparable situation.

After finishing class in the afternoon, Tao Ran climbed the ladder to the roof of Princess Changle's dormitory, and tested the temperature of the water with his hands. And it's a big box full of water, enough for several people to take turns.

"Big girl, maybe we can take a hot shower tonight."

On the way back to the dormitory after school, Changle took the eldest girl's arm and said intimately.

"I don't know if my brother has done it well. Let's go back and see. ”

The eldest girl also responded happily.

"Well, sister, let's go."

Changle became more and more cheerful.

Pushing open the door of the dormitory, the eyes of the two immediately lit up, because there was a ticking sound of water dripping in their ears.

"Big girl, the teacher really did it."

Princess Changle jumped happily like an elf.

It just so happened that Tao Ran was knocking on the door outside at this time.

After the eldest girl opened it, she immediately let her brother into the dormitory.

Tao Ran told the eldest girl and Princess Changle how to turn on and off the water source, and the eyes of the two little girls who were surprised were shining.

In fact, it is very simple, Tao Ran placed a wooden board at the bottom of the bamboo tube, and when bathing, he only needs to pull the wooden board apart, and after washing, he can push the wooden board inside.

Because the planks seeped water, Changle and Princess Daya would hear the sound of water dropping, ticking, ticking.

"In a few days, the teacher will go to Chang'an City to build an iron baffle, so that it will not drip water, and it will be used in the next few days."

"Teacher, it's already very good. Changle is really happy, the water temperature is really hot. No, Changle is going to take a bath. ”

Princess Changle said happily.

Hearing this, Tao Ran immediately exited the dormitory and closed the door.

"Sister Sister, Changle went to take a bath first."

Princess Changle couldn't wait to speak.

"Well, my sister will guard the door for you." The eldest girl spoke.

"Okay, hard work sister. Wait a minute, Changle will also open the door for his sister. ”

Changle giggled, and the person had already entered the bathroom.

Comfortable hot water poured down from the top of his head, and it was the first time for Changle to enjoy the warm water and the way to take a bath.

couldn't help but make her smile a happy smile on her face, and her face became more and more ruddy after being moistened by the water temperature.

Princess Changle had never taken such a comfortable bath when she was so old, and after the warm water moistened her body, it immediately dripped down and flowed out along the outlet in the corner.

Princess Changle had to sigh at the teacher's ingenuity and unique creativity.

Thinking that these are all carefully designed because the teacher can take a hot bath, Changle's heart is sweeter than eating candied fruit.

I don't know when the teacher actually occupied a very important, very important position in his heart.

Princess Changle closed her eyes and felt the temperature of the warm flowing water, her black hair was completely wet, and a trickle of water slipped down her body from top to bottom, such a feeling was never experienced and felt.

A hot bath, Changle took a little half an hour before it was counted.

"Big girl, it's really comfortable. You should also hurry up and wash it, Changle will give you the door. ”

Princess Changle got dressed, walked out and spoke.

"Dry your hair and watch out for the cold." The eldest girl, who has been learning a lot of medical skills with her brother, quickly said when she saw Changle's wet hair.

"Well, thank you sister for the reminder. Changle knows. ”

Princess Changle sensibly responded.

Immediately, Princess Changle carefully wiped her hair, and then guarded the door and acted as the sentinel of the eldest girl.