The weather in Germany in May is, for all those who love spring, the most wonderful month.

The mountain woodlands, the flowers and trees are truly covered in green, and Germany, which is now covered with green, is not like the hot summer of June and July, and not as sentimental as the approaching winter of September and October, which is the most beautiful time of the year.

However, this good time has nothing to do with Joey and his best friends. Joey, who was grounded in the womb, sat at the table by the window, looking at the blue Spree River and the green trees outside, helplessly in a daze.

"Oh my God, I'm going to be grounded for a whole month! This fight is really ..... Now I can only go to school, the palace and the home, and I will not be allowed to go anywhere else, and let the queen's grandmother and my tutor give me homework desperately! ”

"Homework?! Where is this called homework, it's simply oppression! Joey groaned in pain as he looked at the mountains of tutoring homework around the table.

"Jojo, why can't you do anything?" Dreyer, who was sitting across from him and was desperately answering the question, raised his head and asked with concern.

"It's better not to know how to do math, my hand really hurt yesterday." Stolling, who was next to him, muttered, "Dirk, your sister is so ruthless, I'm really worried about Mr. Parsons." ”

"Worried? Blind worry! Still worry about your math problems! Dreyer ridiculed Stolin angrily, and then asked, "Jojo, will you do it?" ”

"I can do it, I can do it, but there are too many questions, and it's much more difficult than the Michelle teacher at school, and I'm not a math genius, I'm just..."

"Come on, you, we have to do so many math problems, and we are all killed by you! You're kind enough to complain! Dreyer said dissatisfied.

"We did so much homework and were killed by Joey?! No! Although Joey has all kinds of bad things, but the fight Joey had that day for his friends, Dirk, and I don't think we should blame him. Stallin said impartially beside him.

Hearing these fair words, Joey smiled, but then Dreyer's dismantling made Joey feel suffocated in his heart.

"Thomas, I'm not so careful, it's not about kicking football and fighting at all, it's about talking nonsense with a group of mathematicians before this guy knows us, mathematics is applied economically, and what blue-blooded elite Germany wants to cultivate."

"Two weeks ago, my sister accompanied my mother to teach in the mathematics department of Humboldt University, and when my mother came back, she said that those masters in Humboldt's mathematics department admired Joey very much, and now people who are doing mathematical research in Berlin are embarrassed to go out and chat with people if they don't know a little mathematical analysis of economic structure."

"Then, my sister came back and gave Joey a test paper, and this guy actually passed! But my mother and my sister's evaluation of him was that the basic knowledge was not solid, and he had to do test training. ”

"Even if he did it himself, he actually encouraged my sister to add me, so I was also killed by him."

In one fell swoop, Dreyer sold Joey's glorious history.

"As for you, Thomas." Dreyer glanced at his companion Stolin sympathetically, "You belong to the unlucky, who made you die too, at this time you were sent to the womb to receive tutoring with me." ”

"Ahh Joey, you guy! Stallin turned to glare at Joey, the initiator.

"I said, I'm helpless too, okay." Joey hurriedly stopped Stoling, who was about to run away.

"I didn't know that Mr. Elizabeth was also so interested in analyzing the economy through mathematics, and now Mr. Keynes taught me that economics also likes to use mathematical modeling, which is all due to Mr. Elizabeth." Joey scratched his head helplessly.

"Dirk, do you know Mr. Parsons's greatest regret now, that is, Sir Newton prematurely used mathematics to express physical phenomena?" In the end, Joey couldn't help but fight back against Dreyer's betrayal.

Seeing that Dreyer was about to start arguing with himself again, Joey raised his hands and begged for mercy, "Okay guys, we still have a bunch of homework!" You know what the consequences are! ”

In the end, Joey grabbed the pen, looked at the two dead friends, and then looked at the thick homework, and the three of them helplessly lowered their heads and began to write their homework again.

Dirk was left behind to be punished because the family had been placed in the palace by Crown Princess Victoria, and Storling, who liked the group of friends, insisted on staying in Berlin with his grandfather, Sir Grusen, who had recently been on business in the Grand Duchy of Saxony-Weimar-Eisenach, so entrusted Storin to Crown Princess Victoria.

So far, the three of them have shared blessings and hardships.

Although Joey was grounded because he played football and fought with his friends, he couldn't enjoy the bright scenery of May, and he could only be locked in his room and do his homework painfully, but in the past month or so, there have been several happy things happening for Joey.

First of all, diphtheria antitoxin was fully developed, and Dr. Ulrich successfully found the dose of vaccine prophylaxis and drug treatment by accurately distinguishing the dose of diphtheria antitoxin serum.

The confirmation of these two different doses of diphtheria antitoxin means that the value of Joey's dragon treasure will be doubled, after all, children only have a certain probability of getting diphtheria, but the vaccination to prevent diphtheria is needed by every child, and every child is ......, which means that this wealth is so much that Joey can't imagine it.

In the 19th century, diphtheria was one of the leading killers of children's health, and due to the lack of reliable treatments, diphtheria had an alarmingly high fatality rate. In Germany alone, 100,000 to 200,000 people become ill and 15,000 die each year, mainly children.

The situation is even more serious in Europe as a whole, with statistics available: at the end of the nineteenth century, about 60,000 people died of the disease each year in Western European countries, and even higher if you include uncountable regions such as Eastern Europe and Russia.

As for the world, diphtheria kills an alarming number of children.

With Dr. Ulrich's purified immune serum, the greatest discovery in human medical history, Joey was finally able to proceed to the second step of vaccination, which was the combination of diphtheria antitoxin and tetanus antivenom vaccine.

After the combination of these two vaccines, there is a famous name for the drug, which is the diphtheria-pertussis vaccine that every child in Joey's previous life needs to be vaccinated with.

Joey's decision to move forward with the second part of the vaccine was entirely because of the news that Dr. Behring and Dr. Ulrich had brought with him, Dr. Kitasato's tetanus antiviral serum research, and the latest tetanus progress made Joey excited.

Diphtheria antitoxin is revered by the world medical community as the savior of children, and tetanus antivenom is revered as the savior of soldiers, with these two saviors, it means that German children and soldiers are no longer afraid of the threat of disease.

Looking at the smiling faces of visiting Dr. Ulrich and Dr. Behring, Joy suddenly remembered his previous life, in the important medical potency unit of vitamins, hormones, antibiotics, and antitoxin biological products: IU (international unit), which is a unit regulated by the International Health Organization.

And now there is no WHO, neither the WHO, nor the WHO, the predecessor of the WHO, nor the International Public Health Office run by the French.

Since the Germans were the first to discover the antitoxin, there is no reason to call it IU, Joy carefully recalled the IU value of the diphtheria vaccine and antitoxin used in the treatment of her previous life, wrote two sets of numbers and units on a piece of paper, and handed it to Dr. Ulrich and Dr. Behring.

"Medical potency units, Deutsche einheit?" Dr. Ulrich asked, confused.

"Yes, Paul, my idea comes from your principle of minimum lethal dose, I call the biopotent, minimum potency unit of your vaccine a "unit", because it was discovered by your genius German scientist, I hope that future generations will remember this, so I want to name it the German unit DE. Speaking of this, Joey scratched his head, "No, it seems that it should be called the Orich unit!" It's your discovery, after all! ”

"Nope! Although the theory is mine, the idea of creating this unit is yours of Joey, not mine. Dr. Ulrich honestly denied, "Besides, I am a German, and I am proud of Germany, and I call the German unit the best!" ”

"Joey's idea is good, and I think Kitasato's tetanus research can best be expressed in the smallest potency unit, so as to solve the problem he faced that the chemical composition is not constant, so that the quality specifications cannot be verified." Dr. Behring interjected.

Immediately, the two of them began to discuss the tetanus issue of Kitasato enthusiastically.

Joey watched this scene and laughed silently, the German unit (Deutsche einheit) was only the beginning of his own project for the German standard system, and this was only the first step for the German standard to become an international standard.

Starting from curing diseases and saving people, let the whole world imperceptibly accept German standards, and let the German standard system spread all over the world.

Of course, the standard system cannot be built in a day, and any system is a complex process that requires theory, definition, practice and promotion, and the above requirements are indispensable.

What Joey needs to do now is to pry open the tip of the iceberg of the huge standard system, show the charm of the standard system to his compatriots, and let his compatriots understand the importance of the standard system.

Joy believes that with the stereotypical energy of his fellow Germans, he must be familiar with writing standards and forming a system.

This world will eventually become a world of standards, and whoever formulates standards means that whoever holds the rules of the world has the final right to interpret the rules of the world.

"English is the language of the world, so I will make the German standard a universal standard."