In the second class, Zhou Cheng originally planned to tell these people about other inventions and creations, but he was worried that he would not be able to chew too much, so he changed his way of thinking and took the form of asking questions to communicate with these flowers of the motherland. Pen, fun, and www.biquge.info

Zhou Cheng signaled that he could start raising his hand to ask questions, and soon, a blonde and blue-eyed foreign student stood up and asked.

"Mr. Zhou, what do you think should happen if there is an invention and creation that no one can invest? ”

"You don't have to worry about this issue, as long as there are good works in the future, you can come to Qili Village, we have special reception staff, as long as you use it, you can be well paid. Our official website also has a special consultation and cooperation channel, and students who need it can find it themselves. ”

"Mr. Zhou, I want to ask why you don't invent some advanced weapons or military equipment, so that we can unify the world?"

After asking this, everyone laughed, including Zhou Cheng.

"Classmate, you asked this question...... , hehe, our country is strong enough, I think it is better to devote energy to research and development that can improve the standard of living of human beings. ”

"Mr. Zhou, are you still satisfied with the various inventions of our classmates in the morning? Do you think that those are small inventions that cannot lead or change human life? ”

Zhou Cheng shook his head, looked at this black classmate with some unusual seriousness, and then said loudly to everyone.

"Students, I will not underestimate any invention, and I hope you will not underestimate it, especially simple inventions. I don't know if you've ever heard of the term secondary invention?"

Most of them nodded, and Zhou Cheng continued.

"I'll tell you a story, maybe some of you have heard it, but I'm still going to tell it, and when it's done, you will know why I want everyone not to underestimate these so-called little inventions. ”

"Ignaz Thermoweiss is a man that many people probably don't know or have heard of. He was a small doctor in a 19th-century Hungarian township hospital, a male obstetrician!

In the 19th century, science was still in its infancy, not to mention abroad, China's women still basically use artificial delivery methods in childbirth, the baby is too large, the fetal position is not correct, the uterine opening is small, etc., will cause the death of the fetus or pregnant woman, so you must often see it in the TV series, and there are often midwives in the drama who ask the male owner whether to protect the child or the adult.

If the child is protected, then the midwife will directly use scissors to cut the uterine opening of the pregnant woman, and directly take out the child, and the adult will naturally die, and if the adult is protected, the midwife will use cranial forceps, also called cranial crusher, to directly crush the baby's head and limbs, and then take out the child little by little.

There is a small story about the invention of this kind of pliers, but it has nothing to do with this story, so we won't mention it much, and if you are interested, you can go down and check the information yourself.

At that time, Ignaz Thermoweiss was working in a maternity hospital similar to our midwives in China, and for various reasons, the maternal and infant mortality rates were high.

Even if you have a normal child, there will be most pregnant women who have various kinds of inflammation and death after giving birth, but the conditions at that time are like that, they don't know the word inflammation at all, and they attribute this kind of death to fate.

There is no medical trouble or anything like that, everyone's deep-rooted concept is that giving birth to a child is to break through the ghost gate, and if you can break through, you will live, and if you can't, you will die, so now many TV dramas, especially costume dramas, often have plots such as your mother dying in childbirth.

Ignaz Thermoweis, an observant and inquisitive doctor, often prayed silently for these pregnant women who died, and then asked in his mind why they were dying even after they had given birth.

Until one day, Ignaz Thermoweiss found that the maternal mortality rate of that month was particularly high, and after comparing all the cases, he was horrified to find that the mortality rate of his own delivery had almost tripled, while everyone else was normal.

So he carefully recalled what had happened to him this month, from the dress to the operation process, he did not find anything strange, just at this time, he was entrusted by the hospital to another hospital to help with surgery, this time is half a year.

When he returned six months later, he began to deliver babies again with trepidation, and the result was miraculously, the mortality rate dropped to normal this month, which made Ignaz Thermoweiss a little incomprehensible, and it took him a week to eliminate almost all doubts using the method of elimination, and finally found the cause.

It turned out that he had a seasonal skin disease on his hands, which happened to be the month of the highest mortality at the time, and he was transferred after that. However, this was only what he was most suspicious of, and he was not sure, so he pondered how to prove his opinion.

Finally, he thought of a solution, that is, to wash his hands, after that, he would keep washing his hands before each operation, after a month of observation, he was surprised to find that after washing his hands, the survival rate of pregnant women who delivered by himself increased by more than 5 times!

But Ignaz Thermoweiss was always a doctor, not a scientist, and he didn't continue to ask what it was when he discovered the secret, he only knew that washing his hands could improve the survival rate of the mother.

All he can do is to use his own ability to make all obstetricians wash their hands, and even ask the hospital director to make this behavior a rule!

Unfortunately, everyone thought of him as crazy, for which he was even sent to a psychiatric hospital and finally expelled home.

However, it was also the fate of God, Ignaz Thermowes had just returned home for less than two years, the concept of bacteria was proposed, and soon, the strange rules proposed by Ignaz Thermowes were confirmed by scientific theories, and since then, all doctors have begun to pay attention to the relationship between hands and bacteria and wound infections, and it is on this basis that important inventions such as sterilization liquid and sterile gloves finally appeared!"

All the students were fascinated by the listen, and Zhou Cheng clapped his hands.

"Okay students, no one questions the invention now, many times, the invention will bring us big imagination. ”

"Mr. Zhou, this story can only be said to be a small discovery, not an invention, right?"

A student objected, and Zhou Cheng shook his head with a smile.

"Well, while I still have time, I'll tell you about a real little invention, which is still in use today!

Everyone shook their heads, the container is too ordinary, it's completely sealed in a big iron box, this is also an invention? Soon, someone began to whisper.

"Does anyone need a question?"

Sure enough, a male classmate stood up.

"Mr. Zhou, the container is not an invention, is it? And there is nothing special about this, it is just assembled by four pieces of iron. ”

Many classmates nodded in agreement, and Zhou Cheng sighed and shook his head.

"No, that's just you looking at the past with the eyes of the present, you won't think so after listening to this story, okay, it's time to go to the toilet, the story starts right away. ”