Du Jiumei was stunned for a moment, she could make the voice louder and spread farther, isn't that a microphone?

This Li Rui won't also cross, right?

"What's that?" Du Jiumei couldn't wait to ask, try Li Rui's bottom.

Everyone's eyes stared at Li Rui, hoping that he could explain as soon as possible, is there really such a thing in the world that can make people's voices louder and more remote? It's incredible, I can't believe it!

Li Rui said proudly: "As the business of the Tingshu Tea Pavilion gets better and better, and there are more and more people, Master Wu's voice seems to be small, and the people behind him can't hear clearly, so I think about how to make people's voices louder and farther." I've noticed that if you shout at someone in the distance, you will arch your hands and put them to your mouth, and the sound will become louder and spread farther. I took a cue from this, so I made a conical tube out of paper, with the small mouth facing the mouth, and the big one facing outward, which also had this effect. In order to achieve better results, I used bamboo, iron, copper, and silver to make different tubes, and finally found that the copper ones worked very well. Since using this speaker, the last person listening to the book at my house can hear Master Wu's voice. ”

Du Jiumei listened carefully to Li Rui's explanation, and did not find any performance of the traverser, but she was still not at ease, and couldn't help asking: "Is it called a microphone if the thing that can make the voice louder and louder?" ”

When Li Rui heard this, he was not surprised or shocked, but muttered carefully: "Microphone, microphone, oops, Xiao Jiu'er, this title is appropriate, it is called a microphone, which is much more elegant than a speaker." ”

"There you have this. That's really more interesting. Du Wulang praised, "In that case, I wish you a prosperous business!" ”

Li Rui was very excited when everyone affirmed it, and said, "Okay, when the time comes, I will leave you the best box, and you can come to listen to the book at any time." ”

Du Jiumei can now be sure that Li Rui is an indigenous, not a crossover, nor a resurrection of the corpse.

After putting your mind at ease. Du Jiumei had to admire. This Li Rui's brain is really active, and he will use his brain to create what he lacks in it! Strong hands-on ability, it's simply an inventor's material, what kind of imperial examination do you have to take!

Although I think so. But Du Jiumei couldn't persuade Li Rui to be uncomfortable. Specializing in invention. After all, in everyone's hearts, I still feel that everything is inferior, only reading is high!

What's more, Li Rui is now studying so hard. is to narrow the gap with the seventh sister before, so she can't stop it.

After eating, we continued to walk, and everyone looked carefully, and there was indeed no teahouse as Li Rui said.

Li Rui was very happy, and after he went back, he wrote a letter to his father, asking the people around him to quickly tell his father and ask him to help supervise the construction of the Listening Book Pavilion. Besides, if you want to buy a teahouse and a house, you need to see your father. As long as Li Rui completes the formalities of going to the academy to study, he will go to study.

After Du Jiumei went back, she told her mother Yang about Li Rui's performance today.

When Yang heard this, he was very happy and said, "This kid has a heart." ”

Yang was afraid that Li Rui would become conceited because of the gap between him and the seventh sister, but he didn't work hard, but now look at it, it's not the case, Li Rui is still that good boy, and now he is motivated, so it's even better.

Let's talk about Du Dashan, Du Qingchen didn't go with the children, and took Du Qingchen to meet several Confucians in Qingshan Academy.

Although Du Dashan is not a scholar, he has a rich and powerful father, and an uncle who shocks the world, and the wind is clear. Although they are also great Confucians, they are a generation higher than them compared to Feng Qingyang, so they don't look at the face of the monk to see the face of the Buddha, and a few great Confucians saw Du Qingchen.

Being able to meet the legendary literati, Du Qingchen was very excited, and when he spoke, he was a little nervous. This is the same as in later generations, when young fans see and love idols.

At first, those Confucians were a little contemptuous, but after listening to Du Qingchen's views on cultivating students for the imperial examination, they were quite appreciative and had a very happy conversation.

After returning from Qingshan Academy, Du Qingchen has been in a state of excitement.

Du Dashan didn't understand Du Qingchen's excitement, and said, "Big brother, since you are so keen on the imperial examination, why don't you take the exam next time." Anyway, now that I have money, I don't have to worry about not having money to take the exam. ”

When Du Qingchen heard this, the excitement in his heart disappeared, and he said with a wry smile: "Wouldn't it be a shame to take the exam with the students, the students passed the exam, but I didn't pass the exam!" ”

When Du Dashan heard this, he immediately understood, and said, "That's what I said!" Whatever you want, big brother, I will support you in whatever decision you make. Since you like Castle Peak Academy so much, why don't I find a relationship and let you teach here? ”

Du Qingchen shook his head again and again and said: "No, my level can't reach the level of teaching in Qingshan Academy at all, I'd better stay in Jin County, and occasionally come to Qingshan Academy to ask for advice, I'm already satisfied." Moreover, the children in Dujia Village are literate and literate, and I can take care of them in Jin County, and I still expect them to glorify their ancestors! ”

"Okay, big brother, if you have any difficulties, just tell me directly, and I will definitely help if I can." Du Dashan agrees with Du Qingchen's choice, this big brother has always known how to do it!

Maybe the eldest brother is not the kind of exam-type talent, but a cultivated talent, just like the teachers of later generations, can cultivate the top student in the college entrance examination, but they themselves may not be able to pass the college entrance examination champion.

Du Qingchen lived in Guangling Mansion for ten days, and was about to leave, when the big landlord Li came, and bought a small courtyard in Guangling Mansion very quickly, spending eight hundred taels of silver.

If it was before, maybe Li Dalandowner was reluctant to buy a house, but since the opening of the Tingshu Tea Pavilion, he can't talk about making money every day, but he can earn three hundred taels of silver every month, and after more than a year, there are thousands of taels of silver, plus the family's savings and income, this time he brought tens of thousands of taels of silver over, ready to make a big fight with his son.

Since he wanted to stay in Guangling Mansion, it was not good to live in the palace all day, and the big landlord Li did not hesitate to buy a house.

The big landlord Li not only came by himself, but also by the Qi family. Her husband and son are all in Guangling Mansion, and she is bored at home alone. More importantly, she was worried that when the big landlord Li came to Guangling Mansion, there would be no one around her, and if she hooked up with any fox spirit, she would have no place to cry at that time!

Now after buying the yard, the Qi family quickly managed the yard in an orderly manner.

The big landlord of Li, the Qi family, came to visit the palace in person with gifts, and the Yang family learned that they had bought a house in Guangling Mansion, and also let people send a rich housewarming gift.

Li Rui's admission procedures have been completed, and he can go to Qingshan Academy to study. The family's business is run by his parents, so Li Rui doesn't have to worry. (To be continued.) )