No one ever doubted Sun Simiao's medical skills.

No one ever questioned Sun Simiao's prescription.

Therefore, Concubine Yin immediately grabbed the medicine after getting the prescription and drank it that night.

At first, she didn't feel anything, but in the second half of the night, her stomach suddenly hurt, and she couldn't help but want to go for convenience.

It took several times to finally get along all night.

"Mother, this medicine ...... How about this medicine, or don't take it. Seeing Concubine Yin De like this, the palace maid was faintly worried.

Concubine Yin Defei glared at her: "Continue to boil it for me tomorrow, Doctor Sun's medicine, there will definitely be no problems." ”

Concubine Yin Defei had already asked the imperial doctor in the imperial infirmary to show it, and when those imperial doctors heard that it was a prescription prescribed by Sun Simiao, they dared to say that there was something wrong, so they all told Concubine Yin Defei that it was a good prescription and there was no problem.

Therefore, at this time, Concubine Yin De will trust the prescription so much, even if it is no longer the same, she still has to eat it.

And when Concubine Yin De was taking medicine in the palace to treat her illness, Li Jiancheng of the East Palace already knew the situation in the harem.

And after he heard that Concubine Yin Defei had not been able to frame Qin Tian, but had been diagnosed and treated by Sun Simiao, he couldn't help but feel a little angry.

"Damn, I can't even do such a little thing."

Li Jiancheng was very angry about Concubine Yin's situation, but now that it was like this, he had nothing to do.

He wondered, Qin Tian's luck was so good, and so was Sun Simiao, it was not good when he would come back, but at this time.

But in the end, he still miscalculated Cui Tong, he felt that he had complained about Cui Tong from the beginning, and his plan was not good at all.

Not only is it bad, but it's not good.

"Stupid!"

Qin Tian didn't care about the affairs of the harem, and he didn't know if Sun Simiao intended to rectify Concubine Yin De, anyway, he knew that he was fine.

If Li Yuan eats those stir-fried dishes, who can say that they are bad?

Sihaiju's business is booming, and Lu Huaniang has to go to Dongshi every day to be busy.

Qin Tian made chalk and blackboards at home.

In fact, humans have been writing on the ground with charcoal for a long time, and this has been the case for a long time, but anyone who cannot afford to buy pen and paper will do so.

But it is not easy to wipe off with charcoal, which makes people feel very troublesome.

It is true that the school in Qinjia Village is rich, but paper and pen are also the things that consume the most.

Qin Tian felt that if he invented chalk and blackboard, it would be of great help to save money.

Chalk is a little bit better, just mix limestone and gypsum to solidify.

But the blackboard made Qin Tian feel a little embarrassed, if he wanted to invent a blackboard like the one in later generations, it would definitely not work, there was no such technology, so he could only replace it with something else.

First of all, Qin Tian thought of using a wooden board, this is actually okay, after writing, it can be erased, but soon he found that if he writes more, there will be a lot of chalk residue on the wooden board, so it will be very blurry to write again.

It has to be something that can wipe all the chalk clean at once.

A chalkboard is definitely not good, so you have to find some alternatives to it.

At first, Qin Tian didn't have a clue, but later he found that some natural stones were particularly smooth, chalk could be written, and it was easy to erase off.

After discovering this, he called Qin Wu and the others over.

"If you go to find a stone, it should be particularly smooth, and the texture is less, the area is not too large, just enough to write a dozen words, and it does not need to be too thick, and it is easier to take thinner."

Qin Tian commanded, and after listening to this, Qin Wu and the others did not hesitate, and immediately began to look for such a stone.

Nature is very magical, there are actually stones of any shape, as long as you are willing to find them, so a day later, Qin Wu collected more than 20 stones from all over the world.

Although it is not much, it is enough for the people in Qinjia Village to use it.

After the stones were found, Qin Tian ordered people to transport them to Qinjia Village.

Ma Zhou was very strange to see that Qin Tian's people had brought so many stones.

"Lord Qin, what do you mean by this?"

Qin Wudao: "Mr. Ma, this is used by Brother Tian as a blackboard, this is chalk, you can practice writing on these stones, and you can erase it after it is full, which is very convenient." ”

The chalk was white and the thickness of the wooden stick, Ma Zhou felt very strange when he saw such a match, and said, "I'll try it." ”

Ma Zhou pinched the chalk with the gesture of pinching the brush, but the words written were very floating, after all, if the strength was not strong enough, he would not be able to write.

"Mr. Ma, Brother Tian said, you have to take the chalk like this."

Qin Wu tested it on Ma Zhou according to the situation that Qin Tian taught him, and Ma Zhou wrote it again, which was much better.

In fact, there are similarities between brush words and hard pen words, and you can master it with a little practice, Ma Zhou is very talented in words, and it didn't take long to learn how to use it.

And after he finished writing, he found a cloth to wipe it, and after wiping off the chalk, he could continue to use it, so that the money for buying paper would be saved.

"Good thing, this chalk is really a good thing, I don't want charcoal, it's not easy to rub." Ma Zhou couldn't help but praise, the stones used to replace the blackboard were really mediocre, so there was nothing to say.

But the appearance of chalk is not known to be many times better than charcoal, not to mention that it is easy to wipe and not dirty, which saves costs and is much more convenient for teaching.

"Lord Qin is really a good skill, after I go back, I will express my gratitude to Lord Qin on my behalf, Qin He found that I will teach these students well."

Qin Wu nodded, and then ordered someone to fix those stones in front of each student, and then he took people back.

At the same time, the Nine Princesses' Mansion, the Nine Princesses have also heard some news.

"Qin Tian's destiny people have found a lot of stones?"

"Exactly, what is he looking for so many stones for, does he want to repair the Qin Mansion?" The Ninth Princess was a little incomprehensible.

"It shouldn't be, because Qin Tian pulled all those stones to Qinjia Village, and I don't know exactly what they are for."

The subordinates of the ninth princess didn't understand what was going on, and the ninth princess was very curious, and in the end, there was no way, so she came directly to the Qin Mansion to ask.

And when the Ninth Princess came to Qin's Mansion, Qin Tian was writing some books here, and now those children in Qinjia Village have begun to recognize words, but after they know how to read, they still have to be enlightened, it is impossible to let them learn these things from the beginning, we must first use some simple enlightenment books, so that they can understand some principles of being a person and doing things.

The enlightenment books had existed before, but they were different from what Qin Tian was most familiar with, so he was ready to write out the ones he was familiar with.

While Qin Tianzheng was writing, the Ninth Princess suddenly appeared behind him.