I saw Li Jiyuan holding a chopstick, knocking it on the ground, and when I listened carefully, it turned out to be "Dongfang Hong"!

The audience was boiling, even Tang Mingliang and Zhao Yide widened their eyes, looking incredible, they didn't expect that a few porcelain bowls could also be used as musical instruments.

These porcelain bowls are very common, there are a few in every household, but it is not easy to find seven porcelain bowls that are exactly the same and undamaged, although Li Jiyuan's wife is mean, she is a very good housekeeper, she cooks the house clearly, and she cherishes her own things very much, this time Li Jiyuan wants to take the bowl to do an experiment, and she also had a fight with him.

The commotion in the big classroom made Liu Hao come back to his senses completely, Li Jiyuan's experiment now is a small experiment in physics, and he is teaching chemistry, when Liu Hao designed this small link at the beginning, he was quite resistant, but she felt that a lecture was not successful, the key was whether she could capture the hearts of the audience at the beginning, and finally joined this link at her insistence.

Li Jiyuan is not proficient in music, and even how to play this melody is also taught by Liu Hao, seeing the shocked faces of the small audience in the audience, there is also a smile on his face, he is studying science and engineering, although he majored in chemistry, but he is not ignorant of physics, since it is a science lecture, there is really no need to separate each other.

"All the sound is due to the vibration of the object, the sound we heard just now is the bowl by the chopsticks after the knock, caused by the vibration, the empty bowl is vibrated by the entire bowl wall, the number of vibrations per second is less, that is, the frequency is relatively low, the sound is low, the more water is put, the more the bowl wall vibrates, the higher the frequency, the higher the sound......"

The children have never been in contact with physics, the first time they heard so many physics terms, excited and curious, more confused, whether it is Liu Haohao, or Li Jiyuan did not plan to pass this lecture, let the children learn what physics knowledge, just want to sow this seed of curiosity in their hearts, maybe in the future at the right time, some people can stumble on the road of science by mistake, even if no one takes this road in the end, it doesn't matter, the enlightenment of science can remove the ignorance in their hearts, this is the best thing。

Liu Hao Hao has already cleaned up his mood, sat in the last row and listened to the lecture, Li Jiyuan is a funny and humorous person, this time he tried his best, not only experiments, but also told several small stories in a row, what because of the resonance bridge suddenly broke, the musical instrument sounded by itself, the mountaineer encountered an avalanche, from physics to chemistry, talking about the chemistry that originally existed as alchemy, the alchemy of ancient emperors, the relationship between chemistry and medicine, and what chemical elements are the sun in the sky made of......

He spoke in a tense and exciting manner, and the children listened to it with straight eyes, and even Liu Haohao listened very attentively, and suddenly found that he was actually quite suitable to host "Approaching Science".

"Teacher Li taught a very good class, and the activities you organized were also very good. Teacher Zhao also came and sat down quietly beside her.

"There aren't many students in the school, just dozens of people sitting together and listening to the class, where there is a need for any organization, it is Mr. Li who said well. Liu Hao smiled, "He is a professor at H University, and it is a blessing for the children to have the opportunity to invite him to teach the children." ”

"You have a good idea, now there are so many decentralized cadres and educated youths in the countryside, in fact, they have not yet maximized their role, if you mobilize them all and let them give literacy and classes to the common people, it will definitely make the countryside glow with a new atmosphere......," said Teacher Zhao eagerly.

"Then I will also ask Mr. Zhao to teach us a lesson next time. She smiled, "If you teach primary school students, it will be too big and useless, why don't I talk to the production team leader and let you give you a Mandarin popularization training lecture?"

"Don't come to make fun of me, my Mandarin is not as standard as you say," Teacher Zhao said angrily, "Don't you people in Southern Province have a strong accent? You should have grown up speaking dialects since you were a child, how can you speak Mandarin with a straight and round accent at all?"

"The radio of the production team does not often relay the news of the central radio station, I like to learn to speak with the radio since I was a child, and over time, it has become what it is now. "Liu spread his hands well.

"So people say that language is the study of imitation, and people like you are born with a talent for language, and there is a master of language who can speak more than a hundred dialects, and his pronunciation is so pure that even the locals can't distinguish it, and this talent is not enviable. Teacher Zhao didn't have the slightest doubt, but just sighed, "People think that I must be a linguist in this language research society now, but in fact, ......this is not the case at all."

He only reacted when he said this, Liu Haohao's words just now were to criticize him in a roundabout way, not every expert is good at doing this kind of elementary popular science lectures, this kind of lecture has high requirements for the eloquence of experts and the ability to mobilize the atmosphere in the classroom, and many of those research-oriented talents are not good at teaching.

"It's because my idea just now is too extreme, not every decentralized cadre and educated youth are good at teaching everyone, if you really forcibly promote this model, it will only make people complain, the gains outweigh the losses, the old age, the brain doesn't work......"

Liu Hao looked at Mr. Zhao in surprise, he didn't expect him to admit his mistakes so frankly, it is not difficult for a person to recognize his mistakes, but the difficult thing is to be willing to put down the shelf and admit his mistakes, especially in front of her junior.

"Mr. Li is a funny and humorous person, his lecture level is one in a hundred, but he has also prepared for this science lecture for a long time, and the lecture script has been changed four or five times, not everyone has his level and enthusiasm," she laughed, "but you are a good person and a good official." ”

"Don't praise me, I can't stand it," Teacher Zhao hurriedly waved his hand, a little discouraged, "I'm stupid now, fortunately I'm not an official, otherwise I will be angry, I thought I had done a great deed, I was old, and I was useless......"

"How can it be so serious as you say, I know that you are dedicated to the sake of the people of Southern Province, you have everyone in your heart, you are a good official, as for decision-making, you must always give people the opportunity to make mistakes and correct mistakes, or how to say that the society is spiraling, nothing is smooth sailing, knowing that mistakes can be changed, and good is great. ”

"I'm an old man, but I have to rely on the persuasion of your little girl all day long to regain a little confidence......," Teacher Zhao looked at her with a smile.