For Christine, Alice is her valued student, and Isabella is her best friend's student, and she is also curious about which one Chen Luo will choose.

Chen Luo thought for a while and said, "Senior Sister Alice and I are just friends, and Senior Sister Isabella are also pure ......."

Christine shook her head and said, "Alice-chan must be very sad to hear this. ”

Britney's gaze casually swept over the bed, and she said in surprise: "Sasha, how are you waking up, how are you feeling, are you feeling better?"

Isabella sat up from the bed, looked at Chen Luo with puzzled eyes, and asked, "My head doesn't hurt at all, Blair, how did you do that?"

"It's the reason why you're in good health. Chen Luo wet the towel, wrung it out, handed it to her, and said, "Some diseases don't need to be treated, and they will be fine." ”

"I didn't think Blair, you also know how to heal. Christine looked at him in surprise and said, "Dr. Catherine said the same, she said that there are many diseases in the world that do not need to be treated, and they will be fine, and there are many that need to be cured, and there are still a large number of diseases that cannot be cured......

Chen Luo said: "When I used to be bored, I read a lot of medical books in the library. ”

Isabella woke up, Catherine hadn't gone far, and Christine went out again to bring her back.

Catherine looked at her carefully and said in surprise: "Isabella should be infected with a germ, which causes fever, most of the time, as long as you drink more water and pay attention to rest, you can recover on your own in about seven days, but it is the first time I have seen Isabella recover so quickly." ”

Although Isabella is now alive like a rabbit, just now, she can only lie weakly on the bed.

In this case, there is often only one possibility, and that is that she is pretending.

Pretending to be sick because you don't want to go to school is something that many people have had when they were students.

Catherine didn't dismantle her either, and asked with a smile, "Do you need me to treat you again?"

Isabella's mother Anna is a doctor, so she knows very well that the diagnosis and treatment is that the doctor puts his ear on her **'s chest, although Catherine is a woman, Isabella still feels embarrassed, and hurriedly said: "No need, I feel like I'm all right......"

The patient was unwilling, and Catherine was not reluctant, she stood up and said to Christine: "If there is nothing to do, I will go back to the clinic first, and if there is any situation in the palace, His Highness will send someone to inform me." ”

Chen Luo looked at Isabella and said, "In order to prevent something from being missed, let's let Dr. Catherine diagnose it for you." ”

Catherine's words just now made Chen Luo realize that this beautiful and sexy woman was definitely an experienced doctor, and he didn't dare to guarantee that the healing technique would completely cure Isabella, and it would be better to leave this kind of professional matter to a professional.

He took out a bamboo tube from the side, handed it to Catherine, and said, "Perhaps, Dr. Catherine can try this ......"

Catherine looked at him quizzically and asked, "What is this?"

"I call it 'stethoscope'. Chen Luo explained: "With the help of this, doctors can hear the sound of the patient's body organs more clearly, which is more hygienic and convenient than traditional diagnostic methods, and can avoid many embarrassing occasions." ”

The most primitive stethoscope, in fact, is a hollow wooden tube, which is the "father of thoracic medicine", invented by the French doctor Renéke in the early 19th century, because this stethoscope looks like a flute, also known as the "doctor's flute", for a period of time, it was regarded as a symbol of the doctor.

Catherine took the bamboo pipe and muttered, "But it's just an ordinary bamboo pipe......"

Chen Luo smiled and said, "This is just a primitive model, I have a more mature design here." ”

He picked up the quill on the side, and simply sketched the prototype of the stethoscope in later generations, and said: "This kind of stethoscope is composed of a pickup part, a conduction part, and an auditory part, and the transmission of sound waves is less attenuated in solid than air, and there is almost no attenuation in metal......

Seeing that Catherine still didn't seem to understand, Chen Luo walked to the wall and explained: "We are standing here and can't hear the sound in the next room, because the sound is greatly attenuated in the air, but if you put your ears close to the wall, you can hear it clearly, this is because the wall can transmit sound better than the air, Dr. Catherine can try ......"

In order to make Isabella not so embarrassed, and for Catherine not to put her ears on Isabella's chest, Chen Luo also broke his heart and did not hesitate to popularize acoustic knowledge for her.

Catherine walked to the wall in disbelief, listened to it close to her ear, and after a stunned expression, her face immediately turned red.

Chen Luo was stunned when he saw this, didn't he just let her listen to the voice next door, there was no reason to blush......

Chen Luo's ears were close to the wall, and the next moment his old face turned red and he retreated.

The young couple next door can really toss, so energetic early in the morning, Chen Luo coughed dryly to hide his embarrassment, and said, "I think, this thing should be helpful to the doctor." ”

Catherine also came back to her senses at this time, and after figuring out the principle, she looked at Chen Luo and muttered: "No, no, no, it's just so helpful, this is the most useful invention in the medical field in a hundred years, with it, the doctor's diagnosis will be easier, Blair classmate, you are really a genius......"

The expression on Britney's face didn't change much, her student was a rare genius, and she had long been aware of this fact.

Christine looked at Catherine in surprise and asked, "Is a bamboo pipe so useful?"

Catherine held the bamboo pipe and said, "I would like to ask His Majesty the King to build more ......."

She looked at Chen Luo and asked, "Blair, what do you call it?"

Chen Luo said: "Stethoscope." ”

Catherine looked at Christine and said, "I would like to ask His Majesty the King to build more stethoscopes, every doctor needs them......"

Catherine used a simple stethoscope to diagnose Isabella, and the result was that she was in good health, although Isabella was wearing a small vest at the time, Chen Luo still walked outside to avoid suspicion.

After Catherine expressed her gratitude to Chen Luo again, she went to the palace to ask the king to order it in large quantities.

The importance of the stethoscope to doctors is self-evident, it was regarded as a sign of doctors in later generations, and the invention of the stethoscope was the beginning of modern medicine.

In addition to helping Isabella avoid embarrassment, Chen Luo can be regarded as making a significant contribution to the development of medicine in the Divine Grace Continent.

With the help of Christine, the first batch of stethoscopes were quickly ordered, although limited to materials, the effect can not be compared with the professional-grade stethoscopes of later generations, but the gap between the two is not large, and in the future, the doctors will not happen again when they lie on the patient's white chest and listen to it.

After being cured by the healing technique, Isabella was even happier than before she was sick, which also relieved Chen Luo.

At present, it seems that the cure should have no side effects.

At Christine's suggestion, Chen Luo registered the patent for the stethoscope, but he didn't use it to make money, first, because he was not short of money, and second, because there was no technical difficulty, and he couldn't make much money, so it was better to contribute it to the medical association and sell them a favor.

For this reason, the medical association also awarded him a medal, with which Chen Luo can receive any medical services at the medical association for free in the future.

Of course, Chen Luo will not use this medal for the rest of his life, even if he dies of illness, he will not go to the medical association and endure the torture of that group of executioners......

In the classroom, Alice looked at Chen Luo with admiration and said, "Blair, I heard that every doctor in the royal capital will carry your invention with him, and it is you who make it easier for doctors to diagnose diseases, and all doctors must be very grateful to you......"

Chen Luo smiled and said, "I am also for those patients who are suffering from illness, which can allow doctors to diagnose their conditions more accurately......

The royal capital, the luxurious manor of a certain nobleman.

A young doctor came out of the manor, who had been invited to see a noble lady, and when he offered to take off her blouse, as usual, she gave her a stethoscope......

Why should a doctor be a doctor if he needs a stethoscope for diagnosis?

This damn stethoscope ruined his dream of becoming a doctor.

He slammed the stethoscope in his hand to the ground and scolded, "Damn Blair, I'll never forgive you!"