Han Zhongyu asked speculatively after hearing that Xie Yushu asked someone to customize the frames.
"Are you going to use this glass as a mirror?
Although this thing is good, it is too transparent and may not be as clear as a bronze mirror! "
Xie Yushu dragged Han Zhongyu to the glass, picked up the glass, and covered one side of the glass with a black cloth
"What about this time? It's clear!"
"This, it's so simple!"
"No, I'm just letting you take a look. It can reflect people and really make it into a mirror. It needs to be polished and silvered.
Silver plating is to add glucose water to an ammonia solution of silver nitrate. The glucose reduces the silver ions into silver particles, which are deposited on the glass to make a silver mirror.
The mirror made in this way reflects the objects very clearly, which is more than ten times stronger than the bronze mirror!
When the time comes to make it, I’ll give it to you first! "
Xie Yushu said very proudly.
Han Zhongyu had heard her say things he didn't understand several times. He thought he had been a top student since he was a child, and he was knowledgeable and knowledgeable. He thought he didn't know anything that he didn't know. But in front of Xie Yushu, he acted like a fool. This feeling was really frustrating, so I couldn’t help but ask
"What do you mean by ions, reduction, and what they just said about sheep and turtles?
What does this have to do with sheep and turtles? "
When Xie Yushu explained to Zheng Dacheng, she thought they wouldn't understand, but that's how the process happened. She just expressed it habitually. She thought that even if they didn't know these chemical reactions, they just needed to believe her and follow them. , never expected that they could understand it as a sheep and a turtle, and directly conveyed it to Han Zhongyu.
Hearing what Han Zhongyu said, Xie Yushu was stunned for a moment. She couldn't help but burst into laughter. She almost rolled over with her hands on her stomach. Only then did she realize that Han Zhongyu was looking at her with a depressed look on her face. Then she tried her best to keep her composure and regain her integrity.
"Ahem! Well, I'm either laughing at you, or...
cough! That thing, the sheep I'm talking about, is a chemical element whose scientific name is oxygen.
The turtle is not the turtle, but silica.
There are more than 100 kinds of this chemical element on the earth, such as hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon, sodium, magnesium, aluminum, silicon and phosphorus, sulfur, chlorine, argon, potassium and calcium.
They each have different characteristics, and if they meet in between, under certain conditions, they will produce different reactions, or produce a new substance.
At present, it is common for us to see some sorcerers burning talisman paper, and the so-called snake demon and fox monster will appear on the talisman paper. In fact, the warlock used saturated potassium nitrate solution to draw the shape of the monster on the paper in advance.
After drying, potassium nitrate remains on the paper and cannot be seen with the naked eye. Potassium nitrate has a combustion-supporting effect. After it is ignited, when the temperature is high, it will quickly decompose and produce oxygen. The lines he draws will be thicker than other lines. The place burns so fast that in the eyes of others, it is like a monster showing up!
There is also a rolling oil pan fishing for copper coins. In fact, the surface of the oil pan is oil and the bottom is vinegar. The melting point of vinegar is low. It looks like a boiling oil pan, but in fact the temperature inside is only 50 degrees. Put your hand in it. It won’t burn you either!
There is also the so-called dripping of blood to identify relatives. If alum is put into the water, even if they are not biological blood, they can still be compatible!
These are just chemical reactions! "
"Zi Buyu has strange powers and chaos! It turns out that these can all be explained!
But my knowledge is narrow-minded! "
Xie Yushu saw Han Zhongyu looking a little regretful and hurriedly comforted him.
"As the saying goes, there is a specialization in the profession. Your strength lies in how to solve cases. People's energy is limited and it is impossible to know everything. If you do well in what you are good at, it will be great!
I only have a superficial understanding of chemistry, so what does it matter? Anyway, it won’t delay my happy little life! "
Han Zhongyu heard this and expressed that he was comforted!
However, he watched Xie Yushu talking to him, explaining the tricks of the charlatan that no one understood in a high-spirited manner. Using her so-called superficial knowledge of chemistry and giving a few casual instructions, he made the glass, and he felt really sincere in his heart. I was deeply attracted to her.
He feels that this little girl seems to have a treasure in her head, and she will give you some surprises at some point!
At this moment, Han Zhongyu really wished that time would stop for a while, so that he could listen to her novel knowledge for a while, and see her high spirits for a while. With her, he felt that his old-fashioned and boring heart had changed. Gotta come alive!
Han Zhong and Han Yi looked at their master's intoxicated face, yes! Add another ten points to the obsession index!
It was rare to catch up with Han Zhongyu taking a rest, and it would be okay to go back early anyway, so Xie Yushu left him to have dinner before leaving, because today, she happened to have the cook at the village making tofu!
Speaking of which, I have to mention that there is no tofu here. The way to eat beans is still salted beans, fried beans, bean sprouts, and pickled salted beans.
Xie Yushu bought the beans and was busy all the time. She forgot about making tofu until behind the second door. It was almost the Chinese New Year. Aunt Su was discussing the New Year dishes with her, and she suddenly remembered that she hadn’t done it for a long time. It’s time to eat tofu. Let’s make some plates of tofu!
It turns out that no one knows what tofu is!
So Xie Yushu simply drew the tools for making tofu and asked Nanxing to find a carpenter to make two sets. She just got them back today and planned to make tofu today.
In the kitchen, we started soaking beans after dinner in the morning.
Xie Yushu told them to soak the beans, grind them into slurry with a stone mill, and then boil the slurry in a pot. She told them that they might not know how to do it, so she told them to do the rest by herself and let them see it first. Again.
Seeing that at this time, they were almost at the stage of cooking the pulp, Xie Yushu said to Han Zhongyu:
"I'll treat you to something new today! I'll do it. Do you want to join me?"
"Anyway, we have nothing to do, let's come together!"
Han Zhongyu seemed to be very interested in the food, and followed Xie Yushu to the kitchen with great interest.
As expected, as Xie Yushu expected, two large pots full of slurry were boiling, and the cook was about to invite someone to invite Xie Yushu!
Seeing Xie Yushu coming, they all made way for Xie Yushu and saluted Han Zhongyu.
Qu Xiaodie, Nan Xing, Xiao Haitang, and Chu Jinyu heard that Xie Yushu was making tofu, so they all came to see what was new, and the kitchen suddenly became lively.
Xie Yushu directed people to set up the cross, hang a cotton net bag on it, and put a large vat under the net bag, and asked the cook to put the slurry in the pot into the net and filter it, and filter out the bean dregs in the slurry. .
After this step was completed, the filtered soy milk was the kind of soy milk we drank. Anyway, there was enough soy milk, so Xie Yushu directly asked someone to bring out a large bowl, add sugar, and let everyone have a bowl.
The soy milk I grinded myself, added with sugar, exudes a strong aroma, is sweet, and warm. On a cold day, one sip will directly warm your heart. It immediately becomes the best drink in winter!
