The daily routine of the ancient imperial examination

Really boring.

Sometimes I really don't understand what those people think, and they use such a precious poem to entrap him.

Perhaps modern extremely precious cultural relics are not valued in this era. Everyone is just following the above task, recording what can be recorded, and disposing of what cannot be recorded at will. Only then the second prince left this task to himself Come on.

After taking a sip of tea, Lu Xiuyuan found a pen and paper from the side to plan how to organize this cabinet of books.

In the eyes of Wan Xueshi and the others, these books seemed to be impossible to deal with. The other party didn't even know the specific principle. They only knew that the paper would become brittle after being left for a long time, and it would break when touched.

But these things are not a problem for Lu Xiuyuan in modern times. Their family has inherited traditional Chinese medicine from their ancestors, and there are many medical books passed down from generation to generation in the old house.

Many of these books are also hundreds of years old. The reason why they can be preserved intact until his generation is because they have deacidified these books.

Why is the paper yellow and brittle and breaks when touched?That's because all paper contains trace amounts of acid on it, which is oxidized by the air over time.

And deacidification is to remove/remove the acid on the paper, making the paper harder and easier to store.

There are many modern deacidification methods, but most of the chemical agents cannot be extracted in this era. Even if they can be extracted, it is very troublesome, and some gases are very dangerous.

But they still have the stupidest and safest method, that is the calcium hydroxide and bicarbonate method.

This method was used for their books before, and the ph value of the processed paper can generally reach a few points, and the storage life of the paper is directly doubled.

After recording a few key points, he was sure that there was nothing missing, so he continued to drink water from his teacup.

There will be such an important task on him, and he can't calm down to read the book, so he just spends the rest of the time like this.

But helplessly, Lu Xiuyuan wanted time to go faster, but the time slowed down instead. It was only more than half an hour, and he felt like he had been waiting for more than half a year.

Finally, when he was about to get impatient with waiting, the sun outside gradually set on the west mountain, the pointer outside the yard pointed to the end of work, and the guard at the gate rang the bell to remind the people in the yard that today's work was over.

After putting away his water glass, he leaned his chair under the table, lowered his head and tidied up the wrinkles caused by his crooked sitting posture, and then Lu Xiuyuan opened the door and prepared to go home.

The door creaked and pushed open, and he happened to see the door of the next room just opened.

After greeting those people politely, he left the place briskly.

After returning home this time, Lu Xiuyuan didn't have time to eat dinner, so he hurriedly asked Nan Xing to find something for him.

"Nan Xing, go to the servants of the house and get everything on this list ready. You need it now, and you'll need it in a while."

"What is so anxious?" Shi Yunchen took the list in his hand and read it.

"Slaked lime powder? Marble slab powder? What do you do with that stuff?"

Nan Xing took the paper from his young master's hand, and quickly ran to the people in Wu's mansion to ask for the materials written by his young master.

Lu Xiuyuan sat down on the chair next to him and took a rest: "In the morning, the old emperor ordered me to sort out the fragments of poetry and prose that were just unearthed, but I went to have a look at them in the afternoon, because those books were placed for too long, they would be broken when touched. Broken, if you don't deacidify him, then this thing is hopeless."

"Sorting out the unearthed poems and prose?" A trace of doubt flashed in the other party's eyes, "Aren't you at the Library Pavilion now? Why are you asked to get these ancient books again?"

The reason why Lu Xiuyuan didn't explain to the young master about his job change in the morning was to prevent things that he wasn't sure about solving, and make the other party worry for nothing.

But now he already knew what he was going to face, and now he had thought of a way to deal with it, so he could talk to the other party with confidence.

"The second prince failed to make things difficult this morning. He probably didn't expect to find all those books so quickly, so he just threw me such a big trouble. But don't worry, Ah Chen, this is nothing to your husband!"

In order to show that he was confident, Lu Xiuyuan even patted his chest.

Seeing his appearance, Shi Yunchen still couldn't help worrying: "I know that books will become shattered after being stored for a long time, and there is no solution so far. Now the second prince is using this to make things difficult. Your method is really serious. OK?"

Lu Xiuyuan simply stretched out his hand and pulled the man into his arms to sit down.

"Achen, just wait and see, wait a while and mix the materials properly, and finish the task in one day tomorrow!"

"Really?" There was a hint of doubt in the other party's eyes.

"Pfft, when did I ever lie to you?" He hugged the person in his arms, buried his face in the other's shoulder and took a deep breath.

"Just remember to give me a reward when you come back."

Coupled with these words and this action, it is self-evident what Lu Xiuyuan is implying.

The young master shrank back with an unnatural expression: "If you can really finish the day tomorrow, you will probably be tired and stupid when you come back tonight."

Hearing this, Lu Xiuyuan was overjoyed.

"Achen is my gas station. No matter how tired I am, as long as I can see you when I get home, I will be full of energy in an instant!"

"What is a gas station?" Shi Yunchen broke away from his embrace and asked.

He simply held the other's face gently and kissed him.

"That's what I mean."

Feeling the soft touch on his lips, this made the young master inevitably think of the intimacy last night, the two's limbs were entangled/entangled, and the body gradually became hot.

"Uncle! I found everything for you!"

Nan Xing had already started shouting outside before entering the yard.

When Shi Yunchen heard Nan Xing's voice, he bounced off Lu Xiuyuan's body.

Lu Xiuyuan looked regretfully at the young master's ruddy lips, what a pity!I haven't had time to stick my tongue out yet!

It's really not the right time for Nan Xing to come back!

After taking the items in the opponent's hand, he began to fiddle with them seriously.

Now the conditions are limited, unlike before, it can be accurate to grams, and the time is limited, so it can only roughly estimate a ratio.

Lu Xiuyuan added slaked lime and marble powder to two large bowls of water.

Slaked lime is the calcium hydroxide, which is used to neutralize the free acid in the paper when sorting books.

After finishing, the marble powder, namely calcium carbonate, is used to strengthen the previous calcium hydroxide into calcium carbonate. These things are deposited on the paper, which can play an anti-acid effect and even inhibit the further acidification of the paper.

This method was invented a long time ago. Although he couldn't remember clearly, it was recognized as one of the safest and most reliable methods for so many years, and that was enough.

However, his way to deal with paper is to soak it, and the books in Lu Xiuyuan's copper cabinet can't be touched, so there is definitely no way to deal with it directly, so he has to find a way to make a spray.

This spray is a real spray, not a stream of water. It’s just that in ancient times there were no pressing devices like modern ones. To turn water into mist, in addition to props, it also needs a strong lung capacity.

After preparing two large bowls of water and letting Nan Xing fill the two large gourds, he trotted all the way to the opposite kitchen.

"Erlang, what are you doing?" Shi Yunchen chased after him confused.

Lu Xiuyuan found the machete in the kitchen, and when he turned around and saw the other party chasing him, he simply held the knife in one hand and led the other party in the other.

"Go and secretly chop two bamboos of senior brother, and then make a good thing..."

Pulling the young master to the garden where his senior brother watched the scenery, he gesticulated and chopped a thick bamboo and a small thin bamboo.

After secretly cutting off the two bamboos, he took the young master back to their yard quietly, and then sat on the chair without any image and began to cut the bamboos.

After Shi Yunchen watched for a while, he was defeated by Lu Xiuyuan, so he simply put some food in the bowl next to him, and began to feed the busy person in front of him mouthful by mouthful.

"Come and open your mouth to eat."

Lu Xiuyuan held a bamboo in one hand and a machete in his arms, which was not suitable for eating. Now that the young master started to feed himself, he was immediately moved and tearfully said: "Ah Chen, you are so kind!"

The other party stuffed a spoonful of rice and side dishes into his mouth: "Otherwise? You don't have time to eat and I won't feed you. Do you just watch you hungry?"

So moving!

He also wanted to blow a few rainbow farts, but now his mouth is full of rice and he can't speak, so he can only eat and play with bamboo.

After eating a bowl of rice, all his props are also ready.

"I've wanted to ask since just now, what are you doing with these two bamboo tubes? And these four thin bamboo sticks."

Seeing Lu Xiuyuan finished his meal, Shi Yunchen finally asked out his doubts.

"These two bowls of water can indeed deacidify, but they need to be soaked. You can't touch the books in the copper cabinet. You can only use a sprayer to spray the weak alkaline water on it."

After speaking, he took a bamboo tube to receive a glass of water and showed it to the other party.

A tube full of water, put a thin bamboo tube in it, hold it firmly, and put another thin bamboo tube on the side, and then start to blow air from this side, the water in the bamboo tube will become a fine mist Squirted out.

After several demonstrations, he successfully gained two pairs of adoring eyes.

Cough, lowered his head and cleared his throat, Lu Xiuyuan pretended to be calm: "Tomorrow, I will use this method to spray the weak alkaline water on the surface of the paper. While neutralizing the free acid, I just take a pen to copy it. It can save a lot of time.”

"It's amazing, Young Master, it turned into water mist and came out!" Nan Xing was so surprised that he didn't come back to God until now.

Seeing Nan Xing's sincere praise, even if he was thick-skinned, he felt a little embarrassed.

The principle of the spray is actually nothing, that is, the faster the gas flow rate, the lower the air pressure, and then the outside air pressure presses the water into the straw and sprays it out. This is still physics in middle school. I thought it was very interesting at the time, and I have remembered it until now.

After explaining these principles to the two of them, except for the young master who understood, Nan Xing was still at a loss.

But he didn't have time to answer his doubts: "Nan Xing, go and help me get some more gourds. I will finish sorting out that cabinet of books tomorrow."

"Does it have to be done in one day?" How hard it was, Shi Yunchen frowned, "Is it the one-day deadline requested by the old emperor?"

"No, no." Lu Xiuyuan shook his head quickly: "Now I have a way to deal with these ancient books. If I don't finish them in one go, I'm afraid there will be many dreams in the night..."

As for the wickedness of the second prince and the others, if they don't finish it quickly, they might really come over and make trouble for themselves.

The author has something to say: The update time may be unstable due to moving in the past two days, I will try to double update qaq