"Goo-dong!"

Looking at the knife in John's hand, which seemed to be extremely sharp, Peake only felt his throat tight, and couldn't help but swallow hard to spit, while taking a step back imperceptibly.

"What's wrong?"

Looking up at Pique's expression and movements, John was stunned at first, and then immediately rolled his eyes and said angrily: "It's just a little blood for you...... Hurry up, man, come here! ”

With that, John took the bright knife and brandished it.

As soon as he moved like this, the chill in Pique's heart became thicker and thicker, and this time he simply took a big step back!

Also startled by the shiny blade, Luther asked with a wry smile on the side: "John, it's okay if you want the two of us to contribute a few milliliters of blood, but what are you really going to do, do you have to cut off the fingers of so many of us?" Also, your room full of beakers and test tubes...... There's even a microscope?! Are you really going to treat your home as a real room?! ”

At this moment, Luther, like Peake, regretted dying of going upstairs to help John so quickly!

After the party not long ago, the other students left, but John enthusiastically left the two of them behind, saying that he invited them to visit the half-built room in his home. The two of them naturally followed up with curiosity, and then saw half of the room where John had just purchased the real yàn utensils, and then they were even more surprised that there was a microscope on the table!

This one shocked the two of them at once!

That's a microscope!

How could it not surprise Peake and Luther that the microscope that they could only occasionally see in the real room of the university was now in their classmates' homes?

So just when the hearts of the two were shocked, John took the opportunity to propose that he wanted to make a blood real yàn, and asked the two to help. As John's best friends, Peake and Luther were in a state of friendship on the one hand, and in a state of shock on the other, so they agreed in a daze.

And then......

They were all shocked when they saw John take out a knife that long from a drawer and find two test tubes that were so thick that they asked them to contribute some blood! It's just that he had agreed to this kid in a daze just now, and after John explained that it would only take a dozen milliliters, the two finally reluctantly agreed, after all, they were both medical students at the University of Berlin, and they knew that it was okay to put some blood.

But just as John picked up the knife he had prepared and called for Peake to be the first to be stabbed, the kid was shamefully cowardly......

John's mind was on the real yàn at this time, and after waving the knife, he said impatiently: "Anyway, I'm idle at home, and I just have a little idea, so I'll do something real...... Come here, Peake! ”

Under John's frequent urging, Peake had no choice but to stand up.

Lighting a kerosene lamp on the table next to him, John set the tip of his knife on flames. His strange gesture immediately made Peake and Luther forget their resistance to bloodshed, and their eyes widened and looked at it carefully.

"John, what are you doing?"

After looking at it for two seconds, Pique couldn't help but ask in surprise.

"Disinfect."

John stared silently at the center of the flame and said nonchalantly, "You should have learned a little about bacteriology by now, right?" I'm going to burn it to kill most of the bacteria, so it's safer to burn the blade before bleeding you with a knife. ”

"Can you also use fire to disinfect?"

Both Peake and Luther were stunned for a moment, and after a while, Peake blinked and asked in surprise, "John, where did you learn this method?" ”

"I thought of it myself."

Answering casually, John felt that the time was almost up, so he grabbed his friend's right hand and smiled: "Peake, I'm sorry, I should have disinfected your hands, but unfortunately I really don't have any good disinfectant on hand......"

As he spoke, John held up the freshly burned knife and swiped it across the fingers of his right hand under Peake's somewhat frightened gaze......

……

"John, this microscope seems to be very new...... Did you just buy it? ”

As soon as he was bled out, Peake forgot about the pain in his hand and was busy lying in front of the microscope. In this era, the microscope is definitely a high-precision equipment, and it is not easy to use it once in school, sometimes many people can share one in class, and now there is an opportunity to have a good life, and Pique will not let it go.

"Well, it's been two weeks since I bought it."

John sat at another table and busied himself, casually answering Pique's question.

Instead of fiddling with the microscope like Pique, Luther, who had been carefully observing John's operation on the side, frowned and asked softly, "John, what are you doing?" Why mix the blood of the two of us? What exactly do you want to do? ”

After hearing Luther's series of questions, Peake also put down the microscope and looked at it curiously.

Just now John said that it was only a dozen milliliters, but in fact, everyone had at least twenty milliliters, which he put in two test tubes. Then John found another test tube, poured out half of the blood of both of them, and mixed it together!

Luther really couldn't understand what John was trying to do!

Under the gaze of the two friends, John hesitated slightly, and suddenly asked rhetorically, "Luther, do you know about blood transfusions between people?" ”

"Blood transfusion?"

Luther was stunned when he heard this, and then immediately frowned and remembered. He had just entered medical school for just over a year, and although he had learned some basic knowledge about blood, he really hadn't heard of blood transfusions or anything.

And next to him, Pique, who was lying on the table and was carefully looking at the blood in the test tube, suddenly raised his head and smiled: "I haven't heard of blood transfusion, but I know it very well about bloodletting...... When I was a child, I was always sick, and three doctors once bleed me! ”

"Uh......"

Hearing this answer, John couldn't help but roll his eyes.

In the history of Western medicine, bloodletting, along with vomiting and enema, was once one of the most important treatments, so much so that a physician once humorously wrote: When poor people go to the doctor, they see either a knife that cuts a vein or a funnel that inserts the buttocks......

In order to give patients more effective bloodletting, doctors even understood the biological method - leeches! At one time, France imported tens of millions of leeches a year for physicians, and John had seen this kind of fifty-cent surgical technique in the United States, especially in the countryside, and even after the 2o century, there was still a certain market for bloodletting, which killed many soldiers in World War I.

Peake was gagging here, and Luther, who had been thinking about it, suddenly asked, "John, what do you mean by blood transfusion?" Does mixing the blood of the two of us have anything to do with blood transfusions? ”

John blinked and smiled: "Blood transfusion is the patient's blood transfusion into the body of someone else after a large amount of blood loss, this is a treatment method that has appeared a long time ago, but as far as I know, some people have indeed been revived because of this, but there are also many people who have died after blood transfusion, so I have a guess, it may be that there is some unknown relationship between their blood, or compatibility, or confrontation......"

"So you want to study this relationship?"

Before John could finish speaking, Peake asked a little anxiously.

After tilting his head sideways for a moment, John smiled and nodded, "In a sense...... Sort of. ”

"Then by mixing our blood together?"

Frowning, Luther asked with some suspicion.

"Of course it's more than that!"

John glanced at Pique beside him, and suddenly laughed: "Actually, in addition to mixing your blood together to see what the reaction is, I also need to put your blood one more time to see what the results are when mixed with the previous release...... Peake, can I trouble you a little more? ”

"Still want to put it?!"

Hearing that he was going to bled himself again, Peake suddenly forgot his curiosity about John's thoughts and screamed loudly......

……

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