Boarding Xie Lingyun's carriage, a refreshing and refreshing feeling immediately swept through the whole body, and there was a wisp of refreshing fragrance, which seemed to go straight to the depths of the soul between breaths.

"Good frame!" Wen Qihang sat cross-legged on the cushion in the carriage and gave a thumbs up in praise.

"Brother Wen has a good reputation." Xie Lingyun said with a smile: "The reason why this carriage is so comfortable is thanks to Brother Wen's inspiration." ”

"Oh? For my brother, I don't even have a carriage. Smelling Qihang, he was surprised.

"Brother Wen, didn't you forget the book "Elementary Arithmetic" that you gave to your little sister?" Xie Lingyun said with a smile.

"Remember! It's just that what does it relate to........"

"Brother Wen, can you remember that there is a part of the book that Brother Wen calls the extension of physics?" Xie Lingyun looked at Wen Qihang and asked.

"Of course I do." Wen Qihang nodded. Mathematics is actually a very boring subject, and even the simplest arithmetic is not very attractive. So Wen Qihang added some simple physics experiments to the book.

"Brother Wen mentioned in the book that copper can dissipate heat, and this carriage is made using the principle that Brother Wen said. The original wooden frame that supported the carriage was now replaced by copper pipes by Xiaomei, so that not only the carriage itself is stronger and stronger, but also only the ice cubes need to be placed in the grooves above the frame, and when the ice cubes melt due to the hot weather, the ice water will flow along the copper pipes through the carriage, and finally converge into the copper basin at the bottom of the carriage. In this way, the interior of the carriage can be cooled and pleasant. Xie Lingyun explained.

"........" himself was almost roasted by the high temperature of Jingshi, why didn't he think of building a BMW car with air conditioning?

"By the way, Brother Wen, if it is winter, the little sister will replace the ice water with hot water, will it not feel cold in this carriage?" Xie Lingyun said proudly.

"Lingyun draws inferences from one another, wisdom is outstanding, admired by my brother!" Wen Qihang smiled bitterly. In fact, the ancients' use of known knowledge can be said to be the pinnacle. It's just that I'm still afraid of exploring the unknown. Even in later generations, people will still be afraid of the exploration and research of unknown knowledge.

This kind of human psychology is not only a misfortune, but also a blessing.

"Brother Wen is the real everyone." Xie Lingyun praised it back, then continued with a deep sigh: "In fact, there are many tests in the book, and the little sister has verified them, but there are still many unclear points. I wanted to ask Brother Wen for benefits, but Brother Wen was busy with government affairs recently, so he didn't dare to bother. ”

"Lingyun is out of sight." Wen Qihang said: "You are the first beauty in the world, if anyone can get your advice, I am afraid they will be flattered." ”

"Brother Wen's words ........are true," Xie Lingyun whispered shyly.

"Nature is true." Wen Qihang smiled.

"That little sister really has something to ask Brother Wen here." Xie Lingyun said happily.

Polite words, do you understand! Girl! Wen Qihang was speechless and said, "Please speak." ”

"Brother Wen once wrote in the book that if two pipes fill the pool with water at the same time, and only one pipe comes out of the pool, ask when the pool will be filled." Xie Lingyun said.

"Well, there's such a question." Wen Qihang nodded.

"For this question, the little sister has something unclear, I don't know what Brother Wen can gain from such hard work?" Xie Lingyun asked.

"........" his own intention is just to take revenge on society, God knows what benefits can be gained by releasing water while entering the water like this! It's just that as a classic mathematical enlightenment problem, I have been killed and brought back to life by it, and now how can I not let the latecomers feel it.

Wen Qihang said with a smile: "This problem is actually the most classic problem in arithmetic, from it, we can derive higher-level arithmetic, such as adding time or space, or some unexpected factors."

The study of arithmetic is never-ending, and it is also related to reality.

Just like the Weishui and Bianhe rivers flow into the Yellow River, but the Yellow River has only one outlet, now the sky is raining rain, the Yellow River is normal water, there is no problem, but because of the rainstorm now, if the outlet can not be drained in time, there will be overflow.

Lingyun has also been to Guanlou Village, and should know that there are many puddles there, which are actually caused by the overflow of the Yellow River........

These exercises, which seem to be useless, are actually closely related to our lives. Wen Qihang explained.

"Thank you Brother Wen for teaching, my little sister has been taught." Xie Lingyun bowed slightly.

"Hey! Lingyun is so smart, but she succumbs to the Qinglou Chu Pavilion, which is really a tyrannical thing. Wen Qihang sighed.

"Ahh Could it be that Brother Wen is planning to redeem his little sister? Xie Lingyun said shyly.

"Ahh This ........" smelled and set sail and stumbled. What a twist this is! Why did we talk about the topic of redemption?

"Hey, my little sister sometimes really envy the luck of Fengxian, since she was ransomed by Brother Wen, her whole person's spirit has become different from before. It's just that now the little sister is still trapped in the green building, and she is allowed to be practiced by others, and the little sister is really miserable! Xie Lingyun lamented.

"........" The suffering from there, you are a demon girl of the White Lotus Sect, who dares to offend you!" But since the words have been said here, if you don't ask, wouldn't it seem that you are very impersonal. Wen Qihang smiled bitterly and said, "I don't know how much Lingyun's redemption silver costs?" ”

"Brother Wen's words are enough, and my little sister is grateful." Xie Lingyun bowed and saluted.

"Isn't it just some money! Money is a thing that is not brought in life or in death, and if it is useful, it is the most useful, and if it is useless, it is also the most useless. If you have a little money, you can help Lingyun, and of course you won't be stingy as a brother. As soon as I heard the voyage of Haikou, I began to regret it in my heart.

Since becoming younger, this heart seems to have softened, whether it is because he can't see Xie Lingyun suffering, or because he can't withstand the temptation of her beauty, it's really a little difficult to tell.

"Since it's a good idea, the little sister is disrespectful, and I don't know how to ........ Brother Wen, can you ........," Xie Lingyun lowered his head and whispered.

........ "Girl! You're welcome! A million runs, is it the name of someone's puppy? I have been blackmailed by Tan Fengyi's demon girl for a million yuan, I really deserve to be a sister from the same family, this value actually starts from one million, and this one can buy ten little phoenixes.

Smelling Qihang's stimulated cough, he said, "It's just a million........ Wait for Brother Wei to discuss with your senior sister, you will definitely be able to get together your redemption money, and you also know that Brother Wei still owes your senior sister millions of yuan, if you don't return the money to her first, it must be no problem. ”

In front of the beauty, how can you say no, otherwise it will be too embarrassing, and Tan Fengyi has always been at odds with Xie Lingyun, so she will definitely not agree.

"Thank you Brother Wen so much, the little sister can't repay it, it's better to have the little sister to be responsible for Brother Wen's safety from now on." Xie Lingyun thanked sincerely.

Isn't the "........" a promise made without retribution? You won't spend another million yuan to hire a female bodyguard, right? Wen Qihang shook his head vigorously and said: "No, no, there is no eyebrow on this matter now, it is better to wait for this matter to be completed, and we will discuss it." ”

"With Brother Wen's heart, my little sister will be content. In this green building, most of them are Bo Xing, and the little sister has also seen and heard a lot, but the little sister knows that Brother Wen is by no means such a person, since she has spoken out, she will do her best, so the little sister must repay Brother Wen. Xie Lingyun said resolutely.

“........ Again, again. Wen Qihang said embarrassedly.

"Brother Wen, is this going to make my little sister ungrateful?" Xie Lingyun said with a sad expression.

"Ling Yun's words are serious, there is no such thing as ........" Wen Qihang hurriedly shook his head.

"That's really good, little sister Bento Brother Wen agreed." Xie Lingyun said happily.

"Ahh ........”

(End of chapter)