Seeing Ning Qing lowering her head and blushing, Chen Yi's heartbeat was also joking, and he laughed and said, "Don't worry, I have no smell. I just took a shower yesterday. If you smell it a few more times, you won't smell it. Hehe..."

Chen Yi's words made Ning Qing even more ashamed. He stomped his foot and wanted to escape, but he stopped after walking for two steps and glared at Chen Yi fiercely.

Chen Yi immediately changed into a very innocent look, ignored Ning Qing's embarrassment, pointed to his chest seriously and continued, "Hehe! I know what Miss Qing'er thinks, is it not that men and women can't get close to each other... It is precisely because there is a difference between men and women, and we cannot get close to each other more politely, so when we are doctors, sometimes it is inconvenient to listen to their breathing and heartbeat, but... using such things can auscultize the heartbeat of female patients at a distance. Without being polite, we can check the patient's illness and facilitate diagnosis and treatment..."

Seeing Chen Yi's serious look, Ning Qing also put away his shame and looked curious. He hesitated for a moment and walked back to Chen Yi, looked at the strange thing and asked in a low voice: "Really? This thing really has such a magical effect?"

Seeing Ning Qing curious again, Chen Yi felt the passion that was born from making novel things in his heart. He explained with his hair clearly: "Qing'er, this is a powerful tool I made according to the records in ancient medical books. It is really useful and will definitely play a great role in daily diagnosis and treatment. However, this thing is a bit bulky and not very convenient to carry. There are many places that need improvement, and there are also..." Chen Yi looked up at Ning Qing, who had a worshipful look, and said with regret: "This thing has just been made. I haven't tried it well yet, I haven't summarized the specific functions, and I haven't noticed what needs to be improved..."

Ning Qing's face turned red again, but she tried her best to calm herself down and bit her lip and asked, "Then... how to test it?"

"Actually, it's very simple, just listen with your ears!" Chen Yi said as he picked up the simple stethoscope he had just made from the desk, put one head on his chest, pointed to the other and said to Ning Qing: "Qing'er, lean your ear against this trumpet ring and listen to see what sound can you hear!"

Ning Qing, who was still confused, followed Chen Yi's instructions, leaned his ear close to the other end of the stethoscope and listened carefully.

After listening for a while, a surprise emerged on Ning Qing's face, "Ziying, I heard your heartbeat, very loud, very powerful... and breathing sounds, like a bellows, very loud... Hehe, this thing is really magical, you can hear it so clearly!" Ning Qing said as he moved his head away, looked carefully at the thing that was made of wood, with both ends like a funnel, and then put his ears back to the funnel I had just heard of, and listened carefully again.

"Is this thing good? Can it help the doctor better diagnose the sick person?" Chen Yi asked with a smile, and slowly moved the auscultation into his heart and lungs. "What sound do you hear now? What is it like? Is there any change?"

"The sound changes when you speak, it sounds strange!" Ning Qing did not leave the receiver this time and shouted loudly, "It seems to be coming from a cave, it's dull, it's not right... It's like hiding in the water and talking, haha, it's so interesting!"

Ning Qing was reluctant to leave, cheering and shouting as if he had discovered a novel continent, and also directed Chen Yi to move this magical object.

"Why are you hearing any sounds? Do you tell me?" Chen Yi couldn't help asking again. This simple stethoscope had just been prepared, and he hadn't tried it on others. Because the conduction was made of a long empty tube drilled with wood, two funnels of different diameters were glued on both sides, as a hearing device and a tartar. The stethoscope made in this way had no curvature, so he could not listen to his heartbeat and breathing, and could only listen to other people's breathing. Seeing Ning Qing just shouting curiously, he really wanted to take it over and listen to himself.

"Hehe, the sound when you speak is different, as if you are talking in water..." Ning Qing's ears did not leave the receiver, but instead described it while listening, "Your heartbeat is very loud and powerful, and the sound when exhaling and inhaling... Just like the bellows beside the stove when Master refining alchemy, it is very regular in and out. Hehe, I... can't tell which sounds are there!"

"You stop for a while, I want to hear it too!" Chen Yi took the simple stethoscope away from his chest and pointed at Ning Qing and said, "That...oh, Qing'er, let me listen to your breathing and heartbeat. I haven't heard someone's breathing and heartbeat in person yet... Do you know that I have very experience in auscultation of breathing and heartbeat sounds. I can hear any disease you have!"

"Okay, I've been a little cold these two days. Listen to see if there is anything wrong!" Ning Qing no longer had the shyness he had just now, and immediately agreed to Chen Yi's request, and as Chen Yi showed just now, he placed one end of the stethoscope in his chest and abdomen position.

Seeing that Ning Qing was in the wrong position, Chen Yi naturally stretched out his hand, moved the other end of the stethoscope, and placed it at the tip of his heart: "The heart is here, the abdomen is below. Only the intestines and organs can be heard, and the heartbeat cannot be heard..."

When the foreign object touched the sensitive part, Ning Qing's body trembled slightly, and a blush appeared on her face, but she did not avoid it. She just turned her face to the side and let Chen Yi move the other end of the stethoscope on her chest. Chen Yi did not notice the abnormal change in Ning Qing's expression. After finding the right position, he excitedly placed his ears on the other end of the stethoscope and began to listen to Ning Qing's heartbeat and breathing.

A clear sound came from the receiver, and Chen Yi's surprise was beyond words. The breathing and heartbeat sound from the receiver showed that the simple stethoscope he made could really be used in daily examinations of beauty, at least more clearly than listening directly with his ears, and it was more convenient and quicker. It seems that inventing something that is very useful is not a very difficult thing. Sometimes it can be made with thoughts, and it does not take too much energy. He was also thinking that many things he had in this era could be made, and it was quite simple.

If there is a patent system in this era, then he will focus on inventions in the future. The patent fee alone can be rich enough to rival a country!

"Ziying, what did you hear? Is the cold I suffered severely or not? Is it okay?" Seeing that Chen Yi had no voice, Ning Qing couldn't help but ask when he was a "patient".

"Qing'er, your heartbeat is still strong, without noise, and without premature... It's just that the frequency is a little faster, just like when you stop exercising, your breathing is still balanced, but... wait a moment, let me listen to other parts!" Chen Yi said, moving the stethoscope to Ning Qing's back, then on the right lung position. After listening for a while, "You are indeed suffering from cold, with a slight wet slurring sound, and there is also phlegm in your throat. You need to take some medicine and take some medicine. But... in general, it's not a big deal. The breathing sound is still normal, but... why is your breathing so fast?" Chen Yi described, moving the stethoscope, moving it back and forth in the right lung, wanting to listen more carefully.

Because the stethoscope is placed outside the clothes to listen, and the simple stethoscope is made with a lot of noise, which is far from being as clear as when I used a stethoscope to check the patient's heartbeat and breathing in later generations. Chen Yi listened intently and did not notice Ning Qing's abnormality. Ning Qing, who was blushing, felt a strange numbness coming from her chest. Ning Qing, who had never touched the sensitive parts of her body at such a close distance, had never been touched by other men at this close distance. When Chen Yi's hand moved back and forth on her chest, he did not expect Chen Yi would do such a move. When the stethoscope held by Chen Yi was about to move to the base of his breast, he subconsciously reached out to block it, and just happened to push Chen Yi's hand to the other chest.

Chen Yi felt a soft bulge touching his hand, so he quickly moved his head away from the other end of the stethoscope, and he was a little embarrassed. Needless to say, his hand just touched Ning Qing's still developing chest and brushed past that high ground...

The firm and full feeling is still in Chen Yi's head and hands. Well, this girl should have developed quite early and developed well. Although she wore a wide Taoist robe on weekdays, she could see the bulge on her chest. She just touched the object accidentally. Although it was just a momentary feeling, Chen Yi could still judge that the height there should be a little scale and the elasticity should not be bad.

Seeing Chen Yi being stunned, Ning Qing's face turned red, her body was trembling slightly, her breathing was very rapid, and her heartbeat was not known how fast it was. No man had ever touched her body. Today, Chen Yi not only touched her, but also touched her very sensitive parts, but also had real contact. How could she not make her shy? She wanted to stand up and run away, but she felt that it was not appropriate to escape. She could only lower her head and turn her head aside. She didn't dare to look at Chen Yi, and didn't know what to do!

Seeing Ning Qing blushing and turning her head over, Chen Yi could only pretend that she was not aware of it and said, "Ning Qing, I just heard your breathing and heartbeat, it was nothing serious. I just got a little infected with the respiratory tract after the wind and cold. Take more rest and take some medicine, and it's okay. Even if you don't take medicine, it's not a big deal... The key is to have a good rest and go to bed earlier... Well, it's a bit late, go to bed earlier. I just came back from Zhongnan Mountain. I'm tired from the journey. Let's take a break early..."

"Really... it's okay?" Ning Qing responded with a sound as light as a mosquito, glanced at Chen Yi quickly, and then turned his head.

"real!"

Ning Qing stood up from the couch, lowered her head, squinted her fingers for a while, raised her red face and looked at Chen Yi, and asked in a voice as light as a mosquito, "You... is this thing really used to diagnose diseases?"

"Of course, I was about to present this thing to Master Sun and tell him the reason for this thing. I believe he would be surprised!" Chen Yi looked at Ning Qing with a strange expression while speaking. In her shameful expression, he finally couldn't bear it and explained embarrassedly, "Qing'er, I didn't mean it on purpose just now... I just met it by chance... I didn't want to take the opportunity... Well, I'm a disciple... Don't be angry!"
Chapter completed!