The air conditioner substitute that Zhao Hao wants to tinker with is called "Cool", which is one of the three great inventions of India along with caste and magic oil.

After breakfast, he started working as he said he would. He worked in the study for a whole morning and finally came up with a design sketch. Without Zhang Jian, Zhao Shizhen and other disciples who had mastered the three-view drawing to help him turn his ideas into drawings, Mr. Zhao and Secretary Ma, who could only draw, were really amateurs at this job.

Fortunately, it is not a product from an assembly line, so it is fine as long as it can be used.

Simply put, this thing is a large louver box, with straw inside the three louvers, a fan installed on the front, and a water tank at the bottom. A small water pump is placed in the water tank, which sends water to the three louvers to wet the straw on the louvers. This is the principle of water curtain cooling, which instantly turns hot air into cool air, and finally blows it out by the fan.

As the choice of one billion Indian people, the cooling effect is naturally very good. Moreover, the structure is simple and the materials are simple. The only problem is that the water pump and fan need power, but this does not bother Mr. Zhao. He mainly focuses on solving this problem this morning.

Zhao Hao's method is to install a large water tank on the top of the louvered box, with three thin tubes at the bottom of the water tank. In this way, as long as you add water to the water tank, the water will flow through the small tubes to the straw, which can replace the water pump. In this way, the battery life depends on the size of the water tank, and it is nothing more than adding water a few more times... Anyway, Mr. Zhao doesn't need to add water.

As for fans, it is even simpler. In this era, there are already various kinds of human-powered fans, including vertical and horizontal shafts, pedal-operated and hand-pulled, and wooden and copper blades. It all depends on which one the carpenter has. The young master is not picky, as long as it works.

The person in charge of the manufacturing was Lao Mu, a shipwright on the Yixue. Together with several local carpenters, he tinkered with it for an entire afternoon, repeatedly debugging and improving it. Finally, at nightfall, the first Cool Music machine in the Ming Dynasty was officially born.

This Cooler uses a horizontal axis crank fan, which can continuously deliver air by alternately pulling the two ropes left outside. The advantage of this is that the rope can be longer, and the maid can pull the rope outside the room without standing in front of it. This is very important, otherwise when Mr. Zhao and his two sisters are sleeping, someone has to stand at the head of the bed, which will ruin their mood.

By the same token, the craftsmen also added an inlet pipe to the water tank and an outlet pipe to the sink, so that everything could be done outside without disturbing the young master all the time.

When Mr. Zhao Er came home from get off work at night, he stood in front of the square wooden louvered box, feeling the cool breeze from the fan, and his sweat quickly disappeared. He was overwhelmed by the long-lost comfort, and hurriedly told Zhao Hao to build a few more tomorrow and install them for the old gentlemen.

"Let's send one to Lin Zhongcheng first." Zhao Hao reminded him, "He is a patient and is particularly afraid of heat."

"Yes, yes, yes. Zhongcheng Lin returned all the generous gifts prepared by each family. I was worrying about what to do. He will definitely accept this." Zhao Shouzheng was dancing with joy, obviously in a very good mood.

Zhao Hao finally stopped being covered in sweat all the time, and his hair and armpits could stay dry. Now he was in the mood to joke.

"It looks like today is another beautiful day."

"That's right. Mr. Liu and his friends praised my father so much in front of Lin Zhongcheng today that I was embarrassed." Mr. Zhao danced with joy and sat down, but he didn't look embarrassed at all. He asked someone to invite Old Pan and Old Wu to have a drink together in the evening.

After a while, Pan Zhongxian and Wu Chengen arrived one after another. They both praised the cool music invented by Zhao Hao, and were even more delighted to hear that they would be able to use it the day after tomorrow.

"But why is the name so strange? What does it mean?" Pan Zhongxian asked curiously.

"The joy of the hot summer." Wu Cheng'en is indeed a writer with a first-rate ability to make far-fetched analogies.

Young Master Zhao gave him a thumbs up, saving him the trouble of explaining.

"Oh, I see." Pan Zhongqian nodded, thinking that it would be more accurate to call it 'Summer Music'.

The four of them sat around the cool music and ate the hotpot that Young Master Zhao had been craving for.

What is life? Life is eating hot pot with air conditioning. After trying it, you will truly feel what it means to be hot... oh no, the taste of happiness.

Moreover, in Chaozhou, you can even buy fresh beef in the market openly, without having to wait for the cattle to fall to their death, drown, or die of disease before you can eat beef. What kind of bullshit court rules are these? They don't exist.

They took a piece of red and white dragon, soaked it in the boiling soup for seven or eight seconds, then quickly took it out, dipped it in the local shacha sauce, and put it into their mouths. The fresh, tender, fragrant and soft taste immediately awakened the appetite of the four people that had been dormant for more than a month.

"Oh my God, how can it be so delicious?" Master Zhao's eyes almost popped out from eating so much. For the past month, he felt that everything he ate was tasteless.

"It's mainly because of the cold wind that I finally have an appetite, right?" This is especially true for Wu Cheng'en, who is older.

Pan Zhongxian didn't even bother to talk. He just ate with chopsticks one by one. Soon he was sweating profusely.

Then the sweat was blown away by the cool music, so cool!

He ate until he was about 70% full. He took two sips of iced plum wine and burped loudly. "This afternoon, when Lin Zhongcheng visited my third brother, he told me that he was going to order all officials and students in prefectures, states and counties to study science after he returned. He asked me to lend him a few teachers. Did he tell you about this?"

"No." Zhao Hao used a long wooden chopstick to pick up a piece of squid and put it in the clay pot. He shook his head and said, "Maybe he was afraid that I would refuse, so he would not ask again. He came to you first to feel out your opinion."

"Yes. Lin Zhongcheng is very careful and meticulous, so he should think so." Pan Zhongxian nodded. "Then do you agree?"

"This is a good thing, why don't you agree?" Zhao Hao smiled and blew hot air, "It's not that I look down on them, a few books like "A Brief Introduction to Physics", "An Introduction to Geometry", "Basic Algebra" and the like are enough to get rid of those dull scholars. Just send a few people over, and it can also expand the influence of science."

"But the students are very utilitarian, and it's hard to say how many of them are willing to be distracted." Wu Cheng'en had studied in both the county school and the Imperial Academy. No one understood the mentality of a scholar better than him.

"Especially those old scholars who have failed the exams repeatedly. They like to blame others and complain about their fate and look for reasons for their failure. Be careful not to become their target." Wu Cheng'en looked gloomy when he said this, as if he had returned to the days when he had failed the exams repeatedly.

"Don't think what I said is impossible. You, the top students who have won the imperial examination and been appointed to the Imperial Academy, cannot understand the pain of the gray-haired poor students. So you can't understand how twisted the minds of us... oh no, people like them are..."

"Alas..." Seeing Mr. Wu indulge in self-pity, Zhao Shouzheng and Pan Jixun didn't know what to say.

"Drink, drink." Zhao Hao smiled and tried to smooth things over, "Don't worry, Mr. Wu. My father and Mr. Tianquan seem to be very famous now. But I bet that it's you and Mr. Qingteng who will be remembered for generations. And you have a greater influence than Mr. Qingteng. In a few hundred years, there will still be a large group of people relying on you for their livelihood. There will even be a Sino-US co-production..."

If the United States exists by then.

"You mean the novel I wrote? Oh, I don't know if it can be published, if I can get my name on it, if I can get the money after it's published..." Wu Chengen was getting more and more upset and almost cried. "Why do I feel so bad?"

Zhao Hao patted Old Wu's back sympathetically. It's not a sin for a man to cry. Let him taste the tears he hadn't felt for a long time.

In fact, Old Wu didn't know that he would become the most exploited writer in history. How many years and how many times did those people exploit him for free? The four great classics and ten great novels of traditional Chinese literature, those people just picked up a monkey and exploited it! But they didn't even want to go to his hometown to burn some paper money for him!

It's fine to pull the hair of a monkey, because the hair of a monkey can turn into millions of monkeys? But someone even pulled the hair of Old Wu, and did it from the age of 28 until he died at the age of 82. Zhao Hao wanted to have sex with Old Wu whenever he saw him, and thought that Journey to the West was just a chapter.

Zhao Hao patted Old Wu's shoulder sympathetically and said, "I promise that you will live to see it published and adapted, with your name on it openly and aboveboard, and get the copyright fees."

"Yeah." Wu Cheng'en nodded and choked up, "Forget about signing it, just pay me."

"Well, we'll talk about it later." Zhao Hao was speechless for a while. He turned to Pan Zhongxian and asked, "What does Mr. Tianquan think?"

"I think it's better not to sign your name..." Pan Zhongqian agreed, "Otherwise, I'm afraid it will cause big trouble. Although it's okay to be sarcastic now, who knows if the wind direction will change in a few years? If then, it won't be worth it if the Jinyiwei come to your door."

"Don't make assumptions. I didn't allude to the late emperor!" Wu Cheng'en protested.

"You've confessed yourself, haven't you? Did I say you were alluding to the late emperor?" Pan Zhongxian laughed strangely, "You're guilty, Old Wu."

"You are treacherous!"

"Stop, stop, stop. I'm not asking about Journey to the West. I'm asking about Lin Zhongcheng. What do you think?" Seeing that the two were about to fight, Zhao Hao quickly stopped them.

"Oh, you are talking about that." Pan Zhongxian smiled awkwardly and coughed, "I don't think it's a big problem. Since the founding of your Lingji Palace, science has been around for four or five years. Especially after the two competitions, it has become very famous among scholars. Many people even regard science as the third force besides Neo-Confucianism and Psychology, so there should be many people interested in it."

"Besides, our Phoenix Academy has started recruiting students this year. Without a certain amount of knowledge in mathematics, physics and chemistry, it is difficult to pass the entrance examination." After a pause, he said proudly, "Guangdong's literary fortune is not strong. Who among the students from prefectures, states and counties does not want to study in our academy? Therefore, the students should welcome the opening of science courses."

"I don't think so." Wu Cheng'en still sang the opposite tune: "There are tens of thousands of students in Guangdong Province, but only a few can enter Phoenix Academy. Many people think they have no hope and think it is unfair. Don't forget that the Chinese people are not sick of poverty but inequality!"

"That makes sense." Pan Zhongxian was also a little unsure. After all, he was an elite among the scholars, and his understanding of the mentality of poor students was definitely not as good as that of Old Wu.

"How about this." Mr. Zhao finally tried to smooth things over. "Let's follow the old rules. Write an investigation report first. Without an investigation, you have no right to speak. Then conduct a pilot project. I think we should put the pilot project in Chaozhou. Once there are no problems with the pilot project and 70% of the teachers and students in various schools agree, we can send teachers to open science classes."

Then he said to Pan Zhongxian, "Just tell Lin Zhongcheng this."

"Okay." Pan Zhongqian nodded and obeyed the order naturally.