Both of them were wearing the simplest white clothes and black trousers, looking at the audience calmly and calmly. Their works were also sent to the stage, a palm-sized cassette player.
"What is that?" Chen Mu glanced at it and muttered.
An Huai: "It looks like a radio."
"Radio?" Chen Mu frowned, "What does the radio have to do with their works? It's impossible for them to make a radio by themselves, right? Then this is not called an invention, at most it is called a copy, and there is nothing new."
"Do you think Ji Yue will have no new ideas?" An Huai asked back.
Chen Mu thought of Ji Yue's repair of the remote control plane last night, and was silent. It was indeed impossible. This kind of direct reproduction would not be able to enter the semi-finals.
"I want to see what Su Qingyun's work is?" In the audience, Tang Ling held her hands leisurely with a sarcastic look on her face.
"Didn't she say that her work is no worse than ours? I have been looking forward to it for a long time." Zhang Xia also sneered. She had been waiting.
At the judging table, the chief judge looked at the two tall and upright young men and nodded with a smile. He looked full of energy. This is what he needs to do, he must have absolute confidence in his own work.
"Are you ready to start?"
"Ready." Su Qingyun and Ji Yue nodded in unison.
The presiding judge signaled the two of them to start. Yan Yan, who was sitting at the edge, quietly winked at Su Qingyun, "Come on."
Su Qingyun smiled slightly and successfully received the signal.
"Good morning to all judges and contestants. We are the eighth group of contestants. I am Su Qingyun."
"I'm Ji Yue."
After the two briefly introduced themselves, they got straight to the point.
With a smile on his face, Su Qingyun pointed at the cassette recorder Ji Yue picked up and said slowly: "As you can see, our work is exactly this small machine in the hands of my partner. You may think it is an ordinary machine." radio, but actually, we called it a cassette player.”
A tape recorder? This novel word immediately caused a commotion in the audience. Everyone had the same puzzled expression. What is a tape recorder?
Chen Mu and An Huai sat up straight, waiting for their next explanation.
"The cassette recorder is a new machine we developed based on the functions of a radio. In addition to taking into account all the functions of a radio, its most significant function is that it can record sounds and then play them back, whether they are ordinary human voices, It’s still beautiful music, it can be recorded and played back perfectly, besides..."
She didn't speak fast, but everyone listened attentively. As she explained, Ji Yue began to demonstrate the various functions of the radio.
"As we all know, the working principle of a radio is to demodulate the high-frequency signal received from the antenna and restore it to an audio signal, then send it to the earphones to become sound waves, and finally play it out. To put it bluntly, the radio is a small radio receiver .”
"These are the functions of the radio, but what we need to do is a cassette player. The first problem my partner and I encountered was how to record the audio? How to store the audio? Later, we finally figured out how to use the cassette player to record the audio. The working principle is achieved through the magnetic effect of electric current, while the sound playback is the function of electromagnetic induction."
"After having these theoretical foundations, we started hands-on experiments. During this process, we encountered various difficulties, such as audio storage. I thought of tapes. Tapes have been around for decades, but they are rarely used in our country. , we started experimenting with using tapes to store audio..."
Hearing this, Yan Yan suddenly realized. No wonder Su Qingyun asked them where they could get the tape when they were at the research institute. Fortunately, their research institute had that thing, and it turned out to be used here.
The deeper Su Qingyun explained, the more serious the listeners became. At the judging table, the judging experts kept nodding. They have ideas and abilities. These two children are great!
As for the other contestants, most of them didn't understand what she was talking about at all. They were confused and confused after hearing about electromagnetic induction and magnetic heads.
What are these talking about? Are they really competing in the same competition? Why are there such big gaps between people?
Chen Mu's eyes widened and he pricked up his ears not wanting to miss any of Su Qingyun's words. An Huai also listened carefully. Both of them could probably understand Su Qingyun's explanation, but it was only because they could understand that they understood how powerful they were. , is a work of this caliber really something that should appear in a competition like theirs?
Isn't this crushing? The two of them sighed in their hearts. It wasn't their turn yet. They had already compared their works with the cassette recorder in their hearts, and they could tell the difference immediately.
Tang Ling and Zhang Xia were dumbfounded. With their brains, they couldn't understand what Su Qingyun said.
Zhang Xia swallowed and remembered what Su Qingyun said before. She seemed to be really not ashamed...
Su Qingyun spoke for about twenty minutes before she finished. Ji Yue made some brief additions to her content. The two of them cooperated in a tacit and orderly manner, which was obviously discussed earlier.
The entire explanation process is logically rigorous, clear and organized, and ends perfectly.
After finishing speaking, the two stood quietly on the stage waiting for the judges' comments. The chief judge repeatedly praised: "It is indeed a work that we noticed early on. You expressed it very well, and the entire work was completed very well. It is very good." I have ideas and the ability to turn my ideas into reality. I can say that the tape recorder is a very important invention."
"Thank you, teacher." Su Qingyun and Ji Yue nodded in thanks.
"But I want to ask you a question." The chief judge said with a smile, "Since you can make a cassette player, you must have thought about where to use the cassette player, right?"
"Yes, we have thought about it."
"Tell me about it." The chief judge was very curious.
Su Qingyun thought for a while and said: "The cassette recorder is made on the basis of a radio. First of all, it has all the functions that a radio should have, so listening to various programs is an indispensable function of it. In addition, I think it can also be The audio was burned to tape and played back on the cassette player.”
"In that way, the practicality of the cassette recorder will be greatly improved, such as recording things, listening to music, and even burning our teaching materials for students to study, etc."
The chief judge listened carefully to Su Qingyun's ideas, his eyes brightening more and more. In this way, the tape recorder can be used in all aspects of people's daily life, including entertainment and learning.
Su Qingyun smiled slightly. In fact, when she first decided to make a radio cassette player, she had considered its practicality. She not only wanted to use the radio cassette player to win the competition, but also let people with vision see the commercial value of this thing. This is Her ultimate goal, otherwise, if it is to show off her skills, she can make even more incredible things, but those are not enough for the market to pay for it, and she can only see things that cannot be used as useless.
The main judge was obviously very satisfied with the team of Su Qingyun and Ji Yue. He looked around and asked, "Is there anything else you would like to add?"
Yan Yan, who had been silently beside him, spoke up, "Qingyun, Ayue, when will you have time to go to our research institute to help?"
As soon as these words came out, the head judge was angry and funny. Good guy, this guy is blatantly poaching his own people in their competition. Isn't he a little too courageous?
Su Qingyun also said helplessly: "Judge, if you have any questions, we can discuss them privately."
Her serious look made everyone laugh. The chief judge said happily: "Jian Yan, if you find someone next time, please let me know. I have to go and have a look. You can't always let your research institute take advantage of us." ?”
This happened once and a second time.
Yan Yan could only nod, "Of course, of course, you can come anytime."
They were chatting and laughing, and the other players and teachers below were dumbfounded. What do you mean by going to the research institute to help? Can these two contestants on the stage actually go to the research institute to work?
Chen Mu took a breath, and finally understood why Su Qingyun and Ji Yue knew each other seriously. They were colleagues in Dare's family before, and judging from his tone, it seemed that he was the one who begged these two people to go. Who are these two people? people? Is it that powerful?
However, he took a look at the cassette recorder in Ji Yue's hand and had to admit that it was indeed powerful.
Chen Mu and An Huai looked at each other and saw the shock in each other's eyes. Now, they don't know how much chance their work will win.
Their group is not the only one who has this idea. In addition to the seven groups of contestants who have already appeared, the expressions of the remaining twelve groups of contestants have changed. With such gems in front of them, how can their works have any room for competition? Isn’t this sent to others for comparison?
Tang Ling and Zhang Xia were also among them, and they were the ones who were better off. They were the first to go up behind Su Qingyun and Ji Yue. The two people who originally wanted to let Su Qingyun pave the way for them turned pale, and behind them they themselves The two could no longer imagine how big a gap their works would make the judges feel.
Of course, Su Qingyun and Ji Yue didn't know that everyone in the audience had different thoughts. The two of them waited until the judges' seats were finished scoring, then left the stage. They returned to their seats. Teacher Qin, who had been worried, finally relaxed. , let out a long sigh of relief, but she was scared to death.
Although the current results have not been announced yet and no one knows what their scores are, thinking about it, Su Qingyun and Ji Yue thought that the scores of one group must be very high, which made the players behind them even more anxious.
"Please invite the contestants from the ninth group to come forward." The judge called.
Tang Ling and Zhang Xia from the ninth group stood up shaking their legs and slowly carried them up. Even though they tried their best to calm down, it was of no avail. By the time they stood on the stage, they were already blushing. White as paper, shaking like chaff.
