Chapter 544 A Dream of Youth 76
The capital city was really lively. Xie Ning held Zhang Mama's hand. On the street, there were peddlers selling food and acrobats performing tricks. There were only two frames set up and a rope connecting the two ends, which was the tightrope walk.
When acrobats walk on a long rope, even if the rope sways to the side, they can still maintain an upright position by adjusting the control of the balance bar.
This is a mechanical principle: the point of application of the resultant force of the jujutsu on the balance bar coincides with the center point of the bar. The rotation of the balance bar around the center point does not affect the position of the jujutsu's center of gravity, because the balancing effect is achieved by the dynamic effect of the rotation process.
Xie Ning watched with great interest, unconsciously sketching out a force analysis diagram between the person and the balancing bar in his mind.
After some calculations, it was found that as long as the balancing rod is properly controlled, the stability of the acrobat walking upright on the rope can be guaranteed, but this does not mean that everyone can do it.
This control effect is a physiological response developed through years of arduous training in acrobatics, and cannot be summarized by simple mathematical formulas.
Seeing that Xie Ning was finding it interesting, Granny Zhang took out a few copper coins and threw them onto the wooden tray. The ten-year-old boy carrying the tray laughed very happily, thanking her repeatedly with kind words. The old man behind him also smiled and tapped the gong, making the lively atmosphere even more intense.
The Dejitang in Beijing was similar to that in Quanzhou, a two-story commercial building, but the number of patients in Beijing was much higher than in Quanzhou. This was normal, given that Beijing had a population of several million.
Xie Ning followed Granny Zhang inside. To the side of the pharmacy was the counter, behind which stood three young boys, presumably the medicine apprentices, who were extremely busy.
Directly opposite the door were two small consultation rooms separated by a curtain, with quite a few people lined up in front of them.
Some people came in, said a few words to Xiaotong, and then went upstairs, which shows that there are also consultation rooms upstairs, which are probably more private.
Granny Zhang seized an opportunity to call out to a young man, "We're looking for your manager."
The young man glanced at the group, said "Wait a moment," and went upstairs after finishing his work. He came down a while later, and in front of him was a middle-aged man with a square face, wearing a white cloth shirt.
The middle-aged man glanced down at Xie Ning, a smile in his eyes. "This must be Miss Xie, right? I'm the manager here, my surname is Du, my given name is Jiang Heng, you can just call me Manager Du."
Despite being somewhat prepared, Du Jiangheng was still shocked by Xie Ning's age; she was just too young.
However, having practiced medicine for many years, even if he was surprised inside, he remained completely natural on the surface. After all, when facing a patient, even the slightest movement by a doctor could increase the patient's burden.
Greetings, Manager Du.
Xie Ning knew this person. Although he didn't see him when he went to the Du residence a few days ago, the young imperial physician Du had told them the general situation.
This Manager Du is the elder brother of Physician Du. They are both from the eldest branch of the Du family and are true brothers.
The reason why Doctor Du is called "Little Doctor" is because he is the least senior and the youngest among all the imperial physicians. But even if he is young, he is still twenty-seven or twenty-eight years old, while this Manager Du looks to be over thirty.
"Come with me."
As for Zhang Mama and Qingli following behind Xie Ning, Manager Du didn't pay them any attention. After all, the child was still so young, and it was normal for the Xie family to be worried.
There were many medicinal herbs drying in the backyard, and even a lot of them were laid out on the table. A young boy was carefully identifying and classifying the herbs. When he saw Manager Du enter, he quickly bowed and said, "Father."
Manager Du introduced Xie Ning with a smile, "This is my son, Du Mingzhao."
Then he said to Du Mingzhao, "This is Miss Xie from Quanzhou. She will be studying at our Deji Hall from now on. Please take good care of her."
"yes."
After exchanging greetings, Manager Du sat down at the stone table and began to test Xie Ning. After all, no matter how intelligent others said Xie Ning was, he still had to test him personally to know how to teach him.
Du Mingzhao looked at Xie Ning with curiosity. He had heard about Xie Ning from his uncle a few days ago and thought that the family must be crazy. They were officials, yet they still sent their daughter to study medicine.
Unlike those who have practiced medicine for generations, they don't teach the women in their families medical principles.
Unexpectedly, she was scolded by her own uncle as soon as she complained. Her uncle seemed to admire this Miss Xie's father, thinking that the man was of noble character, blah blah blah.
Du Mingzhao didn't even want to say that his family had accepted the ointment recipe from someone else before accepting this Miss Xie to learn from.
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