LIGHTNOVELONLINE Chapter 85
Chapter 85 Develop hands-on skills
Mu Rong flicked his finger to move the tuning fork.
The Y-shaped tuning fork inserted on the base vibrates rhythmically.
buzzing buzzing
Mu Rong put a finger on his lips and made a silent gesture, signalling Shen Qi not to speak, and the sound wave display was recording the surrounding sound wave changes.
Shen Qier listened to the humming sound of the tuning fork and looked at the screen of the sound wave display. A series of continuous wave-shaped images appeared on the screen with periodicity.
Soon, the tuning fork experiment ended.
“Shen Qi, what did you hear?” Mu Rong asked.
Shen Qi replied: “I heard f(t).”
“Any temperament, that is, a periodic sound can be represented by an appropriate combination of harmonics, then what is the coefficient of f(t)?” Mu Rong asked again.
“I don’t know.” Shen Qi shook his head.
“do not know?”
“I really don’t know, the conditions are insufficient.”
“Actually, Shen Qi, you just said, what you hear is not a sound, but f(t).”
“Of course I know the Fourier series of f(t), but to find the coefficient of f(t)…” Shen Qi stared at the screen of the sound wave display, trying to find useful clues.
“Don’t look at the screen, your level is limited at this stage, and it’s useless to read it.” Mu Rong operated the computer and printer connected to the sonic display, beeping, and the printer began to print the paper.
“Sister, you know that my level is limited, so you still ask me questions that I can’t answer?” Shen Qi was speechless.
“You only know after asking.” Mu Rong said it for granted, chuckling.
“What about the demeanor of Dr. Yan Danu, Sister?”
“Being personable is a description of a male doctor. I hope Shen Qi, you can become such a male **** one day.” Mu Rong spread the printed drawing on the experimental platform, “Shen Qi, look at the drawing again.”
There are clear coordinate scales on the printed waveform graph, Shen Qi second understands: “A0 is not the amplitude, or 0.001? Isn’t the ω in sinωt the frequency, that is, 72000? Find an integral and divide by f(t) A T will do it.”
“So Shen Qi, you are still instinctively using mathematical thinking to face physics problems. Of course, physics cannot be separated from mathematics, but do you understand what I want to say?” Mu Rong asked righteously.
“Ms. Mu, what you want to say is the wave of G major? Why is it called the wave of G major? I can understand the wave. The vibration of the tuning fork collides with nearby air molecules to produce condensation, which causes the previous position of these air molecules. Another thin space, that is, sparseness.”
“So what our ears receive is the condensation and sparseness of air molecules. This process is represented by the instrument as a set of wave patterns. We can expand f(t) according to the Fourier series, and use mathematical and physical models to qualitatively and quantitatively explain the sound. The essence and mystery can even be used to make sonic weapons of different frequencies. But I still don’t know what role G major played in this experiment?” Shen Qi answered Ruliu but still had doubts.
Mu Rong asked instead: “You don’t listen to music much, do you?”
Shen Qi: “Who said that, I like music very much. I often listen to songs by Dehua, Xueyou, Eason, and Jay.”
Mu Rong smiled silently: “Have you heard of Delella?”
Shen Qi shook his head: “Have heard of De Dema.”
“Where is Ravel?”
“I like Tengger better.”
“Brother, you are still a long way from being a handsome male god. You can only read books and be the champions of the contest. You can see that the physicists hanging on the walls of this laboratory are the image of middle-aged and old uncles. , But they were handsome when they were young, and all of them were clever and literary male gods.”
Mu Rong took off his rimless glasses and sighed, wiped the lenses and put them back on: “C major is too moderate and stable or even pale. F major is a smile with tears. Only G major is full of vitality and excitement. You Don’t you think physics is the most similar to G major?”
“I don’t think.” Shen Qi shook his head, he didn’t feel that C major was pale and weak, F major laughed with tears, and A, B, C, D, E, F, and G major sounded the same thing to him.
“Well, when I didn’t say it.” Mu Rong sighed, the female doctor of physics actually still has a bit of a literary mind.
“Do you understand this experiment? I may have to do it in the future.” Mu Rong asked, and then pulled the tuning fork from the base.
Shen Qi took the tuning fork and fiddled on the pedestal: “Basically understand, come on, I will do it now, Teacher Mu, you can guide me… Teacher Mu, where can this stuff be inserted? Why can’t it be inserted? ”
“Shen Qi, why are you stupid! Why are your hands-on skills so weak! Will you insert it into the slot?”
“Don’t use brute force, there is a switch. If the experimental equipment is broken, Shen Qi, you will pay me. I will tell you. I recently died of poverty and I have no money for car maintenance. Don’t damage me.”
“Don’t drive if you don’t have money for maintenance, safety first.”
“……”
Under the guidance of Mu Rong, Shen Qi practiced this sonic experiment again and again. His practical ability is indeed lacking. Hasn’t he been doing theoretical research this year? He hasn’t done many experiments.
The tuning fork is in place. After the experiment, the two teachers and students no longer speak, and the dialogue between humans will affect the results of the sound wave recording.
Shen Qi doesn’t have to go to the classroom upstairs, he can spend the whole day in the laboratory.
The other members of the Wushu Team arrived in the laboratory in the afternoon. When they came, Shen Qi left.
The CPhO theory topic that Mu Rong addressed to all the team members Shen Qi didn’t like to listen to it. His strong point was the theory, so he could just go back and study the simulation questions.
After all, Mu Rong has to take care of most of the team members. When she and Shen Qi are alone, she will talk about more in-depth physical theories, and focus on routine routines for all team members.
The main purpose of Shen Qi asking Mu Rong for advice is to expand his knowledge, and CPhO is an incidental link.
There are always a few days a month, and Shen Qi will return to the third grade (2) class for inspection.
Gu Xiaodan and Chen Xiaoting are especially grateful to Shen Qi. After studying Shen Qi’s mathematics experience, they have made great progress in mathematics within a few months and have remained stable.
Gu Xiaodan vowed to redouble his efforts in the next two or three months. Yan University and Mizuki don’t count on applying for the college entrance examination to Beijing University of Technology and Beijing Chemical Industry.
“My Gu Xiaodan won’t accept anyone in this life, so I’ll take the big man Shen Qi. I’m going to the capital’s university for nothing else, just to saddle the big man before and after the dog. The most important thing to be a man is to be grateful.” Gu Xiao Dan said, patting his chest.
“Traitor, bullshit!” Chen Xiaoting was still worried about Gu Xiaodan, and her body trembled slightly.
“Chen Xiaoting, you can say that I am counseling, but you must never doubt my loyalty to Shen Qi!” Gu Xiaodan was very angry when he shot the case.
Chen Xiaoting also stood up and did not back down: “Traitor, counseling, no principle!”
Chen Xiaoting has grown to 1 meter A flat chest is better than a long leg.
Gu Xiaodan is only 1.64 meters, and he loses slightly in momentum: “Forget it, good men don’t fight women.”
“Gu Xiaodan, shut up, and I will be admitted to Beijing Institute of Technology and Beijing Chemical Industry. Don’t brag about it.” Shen Qi scolded Gu Xiaodan and asked Chen Xiaoting afterwards: “Where are you taking the test?”
“I…” Chen Xiaoting hesitated and stopped talking, and finally said: “I haven’t thought about it yet.”
“Xiao Ting, don’t you have special skills? Can you play the piano or the piano? I remember this time last year, I said to go to the movies, AA, you said that there was no time to practice piano, and then we went to the school and had a snack, which you bought Shan.” Shen Qi asked.
“Yes, you use imaginary roots, real number roots, Abel group, etc., to drive people’s clerk crazy.” Chen Xiaoting couldn’t help laughing when she thought of this.
Time flies, thinking back to the past, Shen Qi can’t help but laugh: “This is not the point, I will ask you, what kind of piano do you practice?”
“Violin.”
“Then you can get extra points for the college entrance examination?”
“No.” Chen Xiaoting shook her head and explained: “Artistic expertise is no longer given extra points. The items that add points to the college entrance examination are outstanding students at the provincial level, three-good students, and the top three in national competitions in subject competitions. It should be possible to achieve results in sports. Bonus points, there are children of martyrs, ethnic minorities… I remember just a few bonus points. So, if you take the college entrance examination, Shen Qi, you will get a bonus.”
“Bigman Shen Qi still needs extra points? His mock test is 740 fast, and another ten to twenty points are added. Fuck, 750 is overflowing!” Gu Xiaodan couldn’t help but turn around and think carefully. , This is very unfair. A high-achieving student can get extra points. Shen Qi doesn’t need extra points at all. It’s a waste, it’s better to give it to me.