Chapter 29: Simple Epoch-Making Objects

  A new week begins, updated immediately after zero o'clock, seeking collection, recommendation and clicks!

  For a while longer, Chen Yi continued to wander around Chang'an City, but nothing he had hoped for happened.

  On the street, he didn't meet the person he wanted to find, and the Wu brothers who had a feud with him also didn't encounter again; they drank together and chatted freely, and made an appointment to have another drink together when they had the chance. He also didn't meet He Lan Sheng and that He Lan Min whose gender couldn't be determined!

  Time flies, and a month has passed in the blink of an eye. Although Chen Yi doesn't have to worry about living expenses at An Lai Ke Zhan, he still feels anxious. Not only can't he find any clues about his possible followers, but he's also troubled by not knowing what to do next. The youthful years are precious, whether it's for doing things or chasing girls. It's been many days since he crossed over into the Tang Dynasty, and he naturally hopes to start doing something meaningful, like in those cross-over stories, slowly integrating into history, meeting numerous historical figures, and ultimately influencing history - otherwise, this hard-won opportunity would be wasted.

  If he really lived a muddle-headed life, living a life similar to that of the past dynasties, and rubbing shoulders with so many famous people in history, especially famous women, Chen Yi, who was originally romantic and passionate, would go crazy. He strongly wanted to have some "achievements"!

  However, in more than a month, Chen Yi has almost visited every corner of Chang'an City. Famous places except the imperial palace have almost all been there, and he is familiar with the situation in Chang'an City. Of course, what kind of officials and nobles live in which alley, he is not too clear!

  Having a good grasp of Chang'an City's general situation is also a gain, at least when going out, I can find my way back and won't be kidnapped by that little Taoist nun Ning Qing to be sold off!

  Apart from going out for a stroll, Chen Yi was also very enthusiastic about making something he thought was extremely useful, and could even be said to be epoch-making - the stethoscope that would become an indispensable tool for him as a doctor in later generations.

  In the future, any doctor in the internal medicine system cannot do without a stethoscope during the diagnosis process, especially for doctors like Chen Yi who specialize in respiratory and cardiovascular fields. Without a stethoscope, it would be like having an arm or leg missing, making it impossible to carry out daily diagnoses. This convenient device is also frequently used by doctors from other departments in their daily work. Having had dealings with the legendary doctor Sun Simiao of this era, and expecting even more interactions in the future, he must make some moves that will surprise this great doctor not only in medical theory but also in other aspects. The stethoscope is the best and most practical device to do so, and it will surely amaze Dr. Sun!

  It was just that the level of productivity during the Tang Dynasty was not very good, and many things needed to make useful objects were not available. There was no good casting technology, so hollow steel pipes could not be made, and rubber hoses and plastic products could not be obtained. The kind of very useful and convenient stethoscope that would appear in later generations could not be made at all. Chen Yi could only use the existing conditions to make a practical simple stethoscope. He also tried many methods, using wooden pipes, and even ordering the iron shop in the western market to forge those thick iron pipes. These two kinds of pipes used as stethoscopes were feasible, but the earpiece and diaphragm could not be made, and the connection pipe was even more impossible to solve. At least Chen Yi had not thought of a good solution for these few days, which made him feel a bit discouraged!

  It's really not easy to invent something epoch-making.

  But Chen Yi did not give up, he continued to ponder and was determined to make a better stethoscope.

  Through diligence and hard work, sometimes inspiration can be triggered. When Chen Yi thought of the inventor of the stethoscope, René La?nnec, his mind suddenly became clear!

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  Spring is always short-lived, and before you know it, the flowers have all fallen, and the season has entered early summer. Chen Yi, who was very enthusiastic about inventing something new, also received some good news: Sun Simiao sent a letter saying that he would be bringing his apprentices back to Chang'an in a few days.

  Receiving Sun Simiao's message, Chen Yi was overjoyed and could finally see that lovely little Taoist nun again. Thinking of the slightly ambiguous feeling between him and the young girl, her shy demeanor in front of him, Chen Yi's heart began to flutter, as if something had been stirred up!

  Chen Yi really wanted to know how Ning Qing would react when she saw him. Although she was restrained in front of Sun Simiao and his two sons, Ning Qing definitely wouldn't dare show any passionate movements, but Chen Yi hoped to see her shy expression in front of him, and also wanted to see the thoughts of him on her face.

  Perhaps he doesn't expect anything now, but the elegant and refined air hidden in his bones makes him hope that all the beauties around him will favor him.

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  Just about when Chen Yi had some success, Sun Simiao arrived in Chang'an with three apprentices a day earlier than Chen Yi expected.

  Chen Yi was welcoming them out when he heard the noise as Sun Simiao and his disciples arrived at the inn. When they met again, they were naturally surprised, Chen Yi had a feeling of being disconnected from the organization and returning to its embrace, and he couldn't help but hold Sun Simiao's hand to express his nostalgia.

  Of course, what Chen Yi wanted to see most was still Ning Qing, this little Taoist nun. Not having seen her for a month, the young girl seemed to have lost some weight, but looked more spirited and even more lovely, making him unable to help but take two more glances, which made Wang Chong and Liu Hai on the side feel somewhat uncomfortable.

  Ning Qing was also delighted, and whenever she saw Chen Yi, she wanted to rush up and tell him about the thoughts that had been on her mind for months. However, in front of her master and senior brother, she suppressed this impulse. But her coquettish appearance still showed through, causing Sun Simiao to have a strange expression.

  Since Sun Simiao and his disciples arrived at the inn after dark, they chatted for a while before having dinner.

  During dinner, Sun Simiao and Chen Yi roughly talked about what he did when he returned to Zhongnan Mountain. It turned out that this time Sun Simiao really went back to research new medicine as he said, making new medicines based on Chen Yi's new ideas, of course, he also went back to deal with some internal affairs and made arrangements for not returning for a long time. When Sun Simiao said that they would be staying in Chang'an for even longer this time, Chen Yi was inexplicably delighted!

  Sun Simiao expressed regret that Chen Yi had gained nothing in Chang'an for over a month, but also told him not to lose hope, everything will go as desired! To this, Chen Yi could only smile wryly, however he didn't lose hope either, he believed that strange encounters couldn't possibly end in his life, they would happen again later.

  Perhaps due to the fatigue of rushing, Sun Simiao rested early, and his two male disciples Wang Chong and Liu Hai also returned to their rooms, preparing some useful items for the next few days as ordered by Sun Simiao.

  Goodbye. Chen Yi was very excited, of course, Ning Qing wouldn't sleep so early. After noticing that her master and two senior brothers were quiet in their rooms, she quietly came to knock on Chen Yi's door! Chen Yi, who was hesitating whether to sneak over and chat with Ning Qing, was surprised and immediately opened the door to welcome her in!

  "Qing'er, aren't you asleep yet?" Chen Yi smiled and looked at Ning Qing, who had a slightly unnatural expression after entering the room.

  "Ziying, I... couldn't sleep and thought of coming over to chat with you!" Ningqing looked up at Chen Yi, her eyes slightly evasive. "We've been apart for over a month now. How was your time in Chang'an? Was there anything you didn't get used to?"

  "It's okay, I'm eating well, sleeping soundly, and my body has even gained some weight!" Chen Yi said jokingly: "It's just that without you guys to accompany me, I feel very lonely, and... without your help, I have to do everything myself!" Chen Yi said, pointing at the clothes on his body.

  When Ning Qing was around, his clothes were washed by the little girl, and she would also help with some daily chores. During this period when Ning Qing returned to Tongtai Mountain, Chen Yi took care of everything herself, although she wasn't unaccustomed to doing these mundane tasks, it just felt a bit unsuitable, and it looked a bit strange in other people's eyes!

  In this era, people with status would not do such rough work themselves. Coming to this era means adapting to its customs. Chen Yi yearned for some attendants to serve her daily life, helping with hairdressing and dressing every day. Long hair is hard to comb, and the cross-collared robe is not easy to wear neatly. If someone helped, it would save a lot of trouble!

  Ning Qing is back, and from now on, many things can be left to her to handle!

  Ning Qing didn't mind Chen Yi's joke and said seriously: "Ziying, it's really hard for you this past month or so. You've had to do everything yourself. Now that I'm back, let me help with the household chores from now on! It's not suitable for you to do these things yourself!"

  "Thanks a lot!" Chen Yi smiled and accepted, looking at the lovely little girl in front of him with a bit of abandon, "You help me do these things, it's a bit like my little maid!"

  "Hum! Who wants to be your little servant!" Ning Qing hummed, extremely dissatisfied, her small mouth also pouting.

  But Chen Yi didn't think much of it and brazenly started sizing up Ning Qing's blushing face.

  Under Chen Yi's gaze, Ning Qing's face finally turned red, lowering her head and biting her lips, exuding an unspoken charm. After fidgeting for a while, she couldn't bear Chen Yi's brazen stare anymore, turning around and taking several steps away.

  She was originally going to get away from Chen Yi's gaze, making herself less tense, but after walking a few steps, she saw the simple stethoscope that Chen Yi had just made and placed on the table, which hadn't been tested on anyone yet, as well as some other parts. She was surprised: "Ziying, what are you doing? What is this thing?" She picked up several tubes that Chen Yi had put on the case, as well as a few horn-like objects, and with her other hand, she picked up a simple stethoscope that had just been glued together, presenting it to Chen Yi. "What's this used for? A sand timer?"

  "What a sand leak! Too blind, this is my latest invention!" Chen Yi snatched the simple stethoscope he had just made from Qing Ning's hand and said proudly: "This is something new I've just made. If it really works, it can be used to listen to people's heartbeats and breathing sounds, which will be very useful for diagnosing diseases! You guys just got back, and it just dried up, haven't tried it out yet!"

  "Really?! Is it really that amazing?" Ning Qing asked with some incredulity, her earlier shyness having vanished without a trace.

  "There's nothing strange about it," Chen Yi said, pointing to his own chest. "If you get close to me here, can't you hear the sound of my heartbeat and breathing? If we use something to stick tightly to the chest or back and abdomen, it can transmit the sounds of the heartbeat and breathing, as well as some internal organs moving, into our ears. It will sound even clearer, and from these sounds, we can discover some abnormal conditions, which can be used for diagnosis..."

  Chen Yi pointed to his strong chest, and let her listen, Qing Ning blushed again, glanced at Chen Yi sideways and scolded: "I... I... won't come to listen to your heartbeat, breathing sound..."

  Ning Qing's shy and coy expression made Chen Yi's heart violently tremble for a moment...