Chapter 447： 447, the third brother is back

Muyi raised his lips, "It's very simple, through scientific knowledge! Didn't you see me pouring something into the water tank? That thing is called saltpeter, which is a product of nature. In short, it has many uses in chemical research."

Liu Xiaocui was very puzzled and asked with a look of surprise, "What do you mean by putting some saltpeter in the water, you can make the water freeze??"

"Yes!" Mu Yiren nodded with a smile.

Qin Anle asked curiously, "Sister-in-law three, is that saltpeter so powerful? I've never heard of it before."

Muyi replied, "Saltpeter is generally used in chemical industry, so it should not be sold to the outside world. I also did experiments before and brought some back from the Academy of Agricultural Sciences. I only remembered it at noon. In short, this is the use of science. Knowledge of how to make ice!"

She bought the saltpeter on the system trading platform in the morning, and at that time, she suddenly thought of the method of making ice with saltpeter. It is an easy way to make ice cubes at home without using any ice-making equipment.

As a third-year graduate student in chemistry, I still know this little trick.

Huang Qiuhua looked at the ice cubes in the pot and exclaimed, "Sure enough, you are still a scholar! This ice cube can still be made by humans."

Liu Xiaocui blurted out, "It's not that he is a good scholar, but the third younger brother and sister are very good. The third child is also a scholar, and I have never seen him make ice cubes before!"

Huang Qiuhua swept over with a glance, however, she was speechless, thinking about it, Xiaoyi is indeed more powerful! I used to think that the third child was very good at university, but now he looks so cowardly!

I don't know where the books have been read for so many years!

Mu Yiren smiled and hurriedly kept his third brother innocent.

"My knowledge is in chemistry. The third brother's major is different from mine. Besides, the third brother is a student, and he has nowhere to get things like saltpeter."

To sum it up in one sentence, her major is in the direction of agricultural biology and life, while her third brother is in the direction of technology and industrialization.

Although they all follow the scientific research route, the direction of research and development is not the same.

Huang Qiuhua responded enthusiastically, "Xiao Yi is right!"

Goudan raised his face and asked, "Auntie, can I eat this ice?"

"Okay, but I'll have to wait for the cool night, and my aunt will cook something delicious for you!"

As a third-year graduate student in chemistry, from a chemical point of view, saltpeter can be used as ice and can also be eaten. However, from the perspective of clinical medicine, the harm of saltpeter to the human body has not been thoroughly demonstrated.

Therefore, you can eat it. After all, in ancient times, it was the way to eat saltpeter to make ice. However, you should try to eat less saltpeter to make ice. If you eat too much for a long time, it will affect your body to some extent.

"good!"

The dog's face is full of anticipation, I don't know what delicious food my aunt is going to do? But no matter what, it's sure to be delicious.

Liu Xiaocui was still staring at the ice cubes in the basin with a look of amazement.

"It's really amazing, just put some stone **** and you can turn the water into ice, tsk tsk tsk~"

Mu Yiren couldn't help laughing, stone slag?

This thing is very capable, but unlike those ordinary pebbles, if it is to make gunpowder, it also needs its cooperation.

"You are all around here, what are you doing?"

Suddenly, Qin Dafu's voice sounded.

Mu Yiren turned around and was about to answer, but at a glance he saw the man standing beside his father-in-law!

"Third Brother!"

Mu Yiren shouted happily, and rushed to the kitchen door excitedly the next second.

"Be careful~"

Qin Mingsheng immediately dropped the luggage in his hand, stepped forward a few hurriedly, opened his hands to support his daughter-in-law.

Seeing her with a belly sticking out, she rushed towards him, which made his heart tighten.

Mu Yiren asked happily, "Why didn't you say you were coming back today? Are you all busy with school?"

Suddenly seeing her third brother standing at the door of the kitchen, I was really surprised and happy. The thoughts of this period were gathered together and instantly inspired.

I really miss him so much!

Qin Mingsheng held his daughter-in-law's hand and replied in a low voice, "I want to give you a surprise!"

Hearing this, Mu Yiren's brows and eyes curled up with a full smile.

A surprise indeed!

She thought that the third brother would have to wait for more than half a month before returning to the village. The reply she received a few days ago said that she was busy with the solar panels.

Huang Qiuhua said, "Go to the main room, don't crowd here."

Looking at the affectionate expressions of the third and youngest couple, if she did not remind her again, it is estimated that the two of them would be able to speak without anyone else.

Afterwards, the group went to the main room!

The two brothers, Goudan and Gouwa, stood motionless in front of the water tank, stepped on the small stool, and stared straight at the ice cubes in the basin.

Gouwa wanted to reach out to touch the ice cubes in the basin, but was stopped by Goudan.

"This can't be touched!"

The dog baby said in a crisp voice, "Brother~ this cool~"

So cool and comfortable.

Goudan said with a serious face, "Gouwa is obedient, you can't touch this, my aunt is going to make us something cool and delicious at night, do you understand?"

Gouwa nodded ignorantly, "Oh~ Okay!"

Afterwards, the two brothers laid their hands on the edge of the water tank and continued to stare at the ice cubes in the basin, which was very novel.

And in the main room, the adults naturally have to be caring and asking.

After all, Qin Mingsheng has not returned home for nearly two and a half months. Of course, his family cares about his study life outside.

Qin Mingsheng picked up some interesting topics and anecdotes that he could talk about, and told them to his family.

"Third brother, have you invented something too?"

Liu Xiaocui was surprised. Although she didn't understand the professional words, she understood a little bit. The third brother was also inventing, and he succeeded.

So, has the third brother become as powerful as the third brother and sister?

"Have the leaders approved it? Did they give you any awards?"

Even Father Qin, who speaks less, can't help but ask more when he hears his son's achievements.

Qin Mingsheng replied with a light smile, "Well, yes, the leaders all agree that the inventions are all very practical things, and I have also handed over the research and development results to the state unit."

Father Qin said with a gratified smile, "That's good! We must guard against arrogance and impatience, and continue to work hard to contribute more to the people of the country."

"I will, Dad!" Qin Mingsheng replied humbly.

Afterwards, Qin Mingsheng took out the gifts he bought for his family in the provincial department store from his luggage.

In the previous research and development of semiconductor lasers, the participating team members all received a bonus of 50 yuan. In addition, he made an important data reference, and also received an additional 30 yuan.