Chapter 5 Chapter 5 Good Memories

"Academic Research on Archaeology" published the "Report on the Archaeological Excavation of Han Tomb No. 7 in Xilingxia", which aroused great attention from archaeologists, historians, astronomers and researchers of the history of natural science inside and outside the province. In order to facilitate the research of experts from all walks of life, the ancient star map has safely arrived in Chujiang City, the provincial capital, and has been mounted into an exquisite wall chart by the Provincial Institute of Archeology. At this moment, Ren Sihong was standing in front of this wall chart, thinking hard.The scarlet velvet drapery that concealed the wall-chart had been drawn aside.In front of the brightly painted brown wall frame made of nanmu, there is a whole plexiglass door, and a delicate and reliable built-in lock is installed on the upper edge of the door.The exquisitely framed ancient star map is hung on the milky white base of the wall frame.A beam of soft light evenly projected onto the ancient star map from a corner above the closet, clearly illuminating the marks and more than 800 stars that the old man had left on it over the past two thousand years.Seeing it, one can't help but want to go against the long river of history and go back to those years that have passed away...

A burly young man walked in.He has a head of thick black hair, two bushy eyebrows covering a pair of eyes shining with probing eyes, and there is a trace of tenacity on the corner of his mouth.Although he was twenty-eight years old, there still seemed to be a little childishness on that handsome face.When he saw Ren Sihong meditating in front of a picture, he walked over quietly, stood behind him, and looked at it too. "Ah! Isn't this the ancient star map!" After he guessed it, he couldn't help shouting. The voice startled Ren Sihong, he turned around and saw that it was Xu Zhenyu.They shook hands and patted shoulders again, so affectionate.Ren Sihong briefly introduced to Xu Zhenyu what they saw in Han Tomb No. 7 in Xilingxia. Xu Zhenyu listened intently, with two exploring eyes showing appreciation from time to time.When Ren Sihong talked about this ancient star map, Xu Zhenyu was sometimes excited, sometimes contemplative, sometimes admired, sometimes concerned.Then, Ren Sihong told him that Secretary Yang of the Institute thought highly of him and went to the Provincial Academy of Sciences several times to ask him to be seconded to participate in this research, but he was never approved.

Xu Zhenyu smiled slightly, his tenacious character made him not mind these trifles, he said sincerely: "It doesn't matter. If you don't agree to second me, I can still participate! You can use your spare time to do it. Look, I have already participated!" Xu Zhenyu took out the miniature camera from his pocket, and Ren Sihong shook his hand and said, "No need, we have remade large-scale photos, as well as materials on the bamboo slips." After that, he turned and went to a filing cabinet on the side to get it. "I also want a copy of the information."

Yang Fan's clear voice like a silver bell came from outside the door. Ren Sihong handed the taken out photos and written materials to Xu Zhenyu, and then deliberately said to Yang Fan: "Why, you also want the bamboo slip information, do you want to partner with Zhenyu?" Yang Fan looked at Xu Zhenyu affectionately, a slight blush appeared on his beautiful duck face: "How can I have that level, I thought you were talking about ancient corpse materials." "Why don't you have that level? Weren't you an active member of the astronomy team in middle school! The discovery in the ancient tomb brought the three of us together again." Ren Sihong smiled at Yang Fan, and said, "I came from Xiakou I brought you the materials, you wait here, I'll get them."

A few words from Ren Sihong brought back fond memories of Yang Fan's golden student days... One night in late autumn, Yang Fan, a freshman in high school, asked her classmate Xu Zhenyu a physics problem.Xu Zhenyu's mother told her that Zhenyu went to school to participate in the astronomy group activities.Yang Fan thought, anyway, the school is not far away, so he went to the school to ask him. There is a small hill behind the school, which was piled up with the leftover soil from leveling the site when the school was built.Now the gravel path is paved on the hill, grass is planted, and trees are planted.There is a small flat land on the top of the hill, where you can overlook the nearby scenery during the day, and it is an ideal place for astronomy group activities at night.Yang Fan climbed up the hill and saw two astronomical telescopes produced by the teaching instrument factory and three simple telescopes made by students on the top of the hill. A dozen students in the astronomy group were observing the starry sky under the guidance of a teacher.With the help of the faint starlight, she saw that Xu Zhenyu and a third-year classmate in high school were busy: one was concentrating on exploring the mysteries of the universe with an astronomical telescope, and the other was memorizing something with a paper clip in his hand.

Yang Fan tiptoed up to them, and suddenly greeted them with her silver bell-like voice, which startled them.Xu Zhenyu asked her what she was doing here. "I'll take a look, okay?" The classmate standing next to Xu Zhenyu was called Ren Sihong, and he hurriedly answered on behalf of Xu Zhenyu: "Okay, okay, we still welcome you to participate." Yang Fan tossed back her long braid that crossed her waist, and smiled sweetly: "I don't know whether I want to participate or not!" The stars on the autumn sky are like countless small gemstones inlaid in black velvet. Even people who know nothing about astronomy will be attracted by this magnificent cosmic scenery.

"There are so many stars in the sky, how do you recognize them?" It was Yang Fan's voice again. "Don't look at so many stars, they all have their own positions in the sky. Although the earth's rotation rises and falls every day, the relationship between them seems to be the same, which makes us very Easy to identify." Xu Zhenyu explained. "Look there," Xu Zhenyu pointed to the east, "that group of bright stars is gradually rising from the horizon, and there are three bright stars in the middle of them, which are the three stars in what people call "Samsung Shining". , that is, Betelgeuse 1, Betelgeuse 2, and Betelgeuse 3. Have you seen it?"

"I see." Yang Fan said happily. "Okay, look around the three stars again. The orange-yellow star on the upper left is Betelgeuse, the white and yellow star on the lower right is Betelgeuse, and the one on the upper right is Betelgeuse. It is Betelgeuse. The four bright stars and the three stars form an irregular H shape. The three stars are the horizontal line in the H shape, and the connection lines between the four stars and this one are directed toward If it is slanted outward, the result is that the H shape becomes thinner in the middle and fatter at both ends." "I can also see the H shape you mentioned." Yang Fan was even happier.

"This shows that you can already recognize the stars!" Xu Zhenyu encouraged her, "This irregular H-shape is the famous Orion constellation." "This Orion constellation is quite beautiful!" Yang Fan admired this constellation with twinkling stars. "No, among all the constellations in the sky, Orion is the constellation with the most bright stars, which makes it look extraordinarily beautiful." Xu Zhenyu said more and more vigorously, pointing to the starry sky in the southeast and saying, "You start from Orion , along the top of the horizon, looking from east to south, there are many stars arranged in a crooked manner, like a turbulent river, so it is named the Bo Jiang constellation."

Speaking of this, Xu Zhenyu took out a small flashlight from his pocket, pressed the button, and let a beam of light cut through the night sky and shoot towards a star in the Po Jiang constellation. "Look, this is the four stars Eridanus. It is only 10.9 light-years away from our solar system and is one of the closest stars to us in the sky." "How many years is a light year?" Yang Fan didn't understand. "A light year is not a year," Ren Sihong couldn't help laughing. "It's not a unit of time, but a unit of distance. A light year is the distance traveled by light in one year, which is about 9.5 trillion kilometers."

"Oh! So, Tianyuansi is so far away from us." Yang Fan was really surprised. "This is the closest among the stars!" Ren Sihong said with emotion. They talked happily, and time passed without knowing it.Below Orion, a very bright, almost white star rises in the east.Xu Zhenyu pointed to this bright star and talked eloquently: "This is the famous Sirius. It is the brightest star in the sky, and it is very close to us, only 8.7 light-years away. The constellation where Sirius is located is called Canis Major..." Ren Sihong interjected with a smile: "Wolf and dog are a family." "This family is far enough away," Xu Zhenyu also smiled, "The constellation of Canis Major is also very famous because of Sirius. There are 88 constellations like this in the sky. This is for the convenience of observation. It is artificially delineated. People also give each constellation a name." Yang Fan became very interested in this splendid starry sky, so he said to Xu Zhenyu: "Talk to the teacher, let me join the astronomy team." "We don't know whether we want you to participate or not!" Ren Sihong answered first.Although he is four years older than Xu Zhenyu, this does not hinder his talkative personality. Since then, Yang Fan has become an active member of this astronomy group.They study together and participate in extracurricular activities together.During the three years of studying and living together, Yang Fan found that Xu Zhenyu was a studious and creative young man; Xu Zhenyu felt that she was a girl with lofty ideals and a kind heart.In their hearts, unknowingly, a feeling of admiration arose. After graduating from high school, she was admitted to Beijing Medical College.For some unknown reason, Xu Zhenyu was not admitted to university.Maybe it's because there are too few places for the astronomy major, and the admission score is relatively high; maybe it's because he made a mistake in the examination room, and he didn't pass the test; maybe he was unlucky, and there were too many people applying for the astronomy major this year.Anyway, I didn't receive the admission notice. When Yang Fan heard the news that Xu Zhenyu hadn't passed the exam, he shed tears sadly.She originally estimated that Xu Zhenyu would definitely pass the exam, but she might not pass the exam--I really didn't expect it to be the result now.Xu Zhenyu controlled his feelings, instead he persuaded her to relax, saying that he would find a way; if he had the opportunity to work, he would study while working; if he had no opportunity to work, he could try again next year. When Yang Fan was studying in Beijing Medical College, he often wrote letters to Xu Zhenyu.From the enthusiastic reply, I know that Xu Zhenyu has fulfilled his promise, worked hard and studied himself at work, and achieved enviable results.Yang Fan has developed a new feeling for him, and this feeling will inevitably be revealed between the lines.Xu Zhenyu is a smart young man, he will not fail to notice.So they fell in love in the letter. Yang Fan is an ambitious person, and she did not relax her studies at all because of her passionate feelings for Xu Zhenyu.On the contrary, she didn't even go home for a holiday after entering school.Before the summer vacation of the third grade, her family sent a letter saying that her father had recently transferred his job and the family moved to the residential area of ​​the new unit, asking her to go back and see the new house during the vacation.Considering that she was new to professional basic courses, she resolutely decided to stay in Beijing to study her studies during the holidays. Upon graduating from medical school, she earned a Bachelor of Medicine degree.She wants to continue her education and apply for postgraduate study for a master's degree in medicine.She wrote to seek Xu Zhenyu's opinion, and he sincerely supported her.After an intense preparation for the summer vacation, she finally passed the exam. Yang Fan took advantage of the gap before school started to return to Chujiang City, where he had been away for five years.Xu Zhenyu warmly congratulated her and said many words of encouragement.But when Yang Fan invited him to play at home, he politely declined.Yang Fan was a little disappointed, but she thought it was due to Xu Zhenyu's shy personality, so she didn't care about it. After the postgraduate course started, for some reason, she felt that Xu Zhenyu's letters gradually turned her cold.Because her study life is too tense, she doesn't have more time to think about these emotional issues. After graduating from the Graduate School of Peking University, she successfully passed the thesis defense, was awarded a master's degree in medicine, and was assigned to work in Chujiang Provincial People's Hospital.After that, she often went to see Xu Zhenyu.They talk about work, life, and ideals.But Yang Fan always felt that although Xu Zhenyu was also very enthusiastic towards her, this kind of feeling was measured.For a while, she was angry.Later, when she understood Xu Zhenyu's inner thoughts, she felt that he was more worthy of respect and admiration.One day, he will understand her feelings too. "Yang Fan, why did you study the ancient corpse?" Xu Zhenyu's question interrupted her memory. "My colleagues and I have developed a new assay that can distinguish between pre-mortem and post-mortem contamination. We wanted to take this opportunity to actually test the reliability of this assay and to use it against comparison with the modern human body." "It's very interesting. I'd like to hear more about it if I get a chance." "Are you free on Sunday? Come to Yellow Crane Park, and I'll tell you about our research results in detail, okay?" Yang Fan's almond-shaped eyes were full of affectionate expectation. "This Sunday, I..." Xu Zhenyu hesitated, "I still have something to do..." In Yang Fan's almond-like eyes, which were as clear as lake water, ripples of melancholy arose. At this time, Ren Sihong handed over the obtained materials to Yang Fan, which saved Xu Zhenyu from the predicament.He wants to soften it up: "Yang Fan, let me go back with you." "I...I still have something to do, I'm really sorry..." Xu Zhenyu walked away silently. Ren Sihong looked at Xu Zhenyu's retreating back and sighed softly. Yang Fan himself didn't understand why he said such words against his will just now.