In the twenty-sixth year of Xia Yuande, the Xia court decided to build a new Luoyang official school.

Luoyang Government School has 12 academies of agriculture, animal husbandry, construction, arithmetic, astronomy, topography, physics, dictionaries, and economics. The Luoyang government school system is five years, and it specially recruits children from the Kanto region to study. Dunhuang, Chang'an, and Chengdu respectively sent scholars to Luoyang to teach. Dr. Song Taixue Li Gefei declined to be the head teacher of the Academy of Literature and Resignation, and lived in his daughter's son-in-law's home for the elderly. The Luoyang scholars sighed for the old gentleman's demeanor, and the children of the Kanto region ran to tell each other that there were no other restrictions on the official school entrance examination except for being under the age of 30. On the one hand, the government provides a new way to enter the profession. On the other hand, the opening of the Twelve Academies opened a window for the Great Song scholars to see a new world that they had never paid attention to before.

"Great!" "Great!" "Great!" "Great!" "Great!"

"Small!" "Small!" "Small!" "Small!" "Small!"

Dozens of them shouted hoarsely, some of them stretched their necks, some of them lying on the black lacquered table, but their eyes did not blink as they watched the water flowing out of the two large clay pots, as if staring at the dice waiting to be opened in a casino.

This is the third class of Huang Wenqing taught by the Institute of Physics, and he raised a problem, two identical kettles, one kettle has a big hole, and the other kettle has five small holes, and the area of the former's large hole is the sum of the latter's five small holes. After the two kettles are filled, let the water flow out of the opening at the same time, which kettle will dry up first?

Some of the Confucian scholars said that the pot with large holes drained first, some advocated that the pot with five small holes dried up first, and most people thought that since the total area of the holes was the same, the speed of water discharge was also the same. Huang Yongqing smiled and watched the students fight for red faces, and even connived at them to make bets on large and small plates, but did not give a direct answer in the end, but asked two large clay pots to verify on the spot. Moreover, after almost all the students bet, Huang Yongqing was very unkind to add a bet of 20 yuan on the side of buying a small one, a "huge amount of money" equivalent to half a year of the official school. This gave many people a bad premonition.

Two streams of clear water poured into the copper basin containing water, making a crisp sound, at first I couldn't see it, the clear water flowed for a while, and the water basin with five small holes was obviously higher, and the trend was becoming more and more obvious, and some of the people had a look of surprise on their faces.

At this time, the amount of water in the five small holes gradually decreases to nothing, which means that the water in the pot has dried up.

The water in the large hole is still flowing unhurriedly, and the answer is obvious. The man who lost the bet sighed inexplicably: "Really? "Really?!" "Really?" The one who won turned red, clenched his fists and shouted, "That's true!" Huang Yongqing ran his right hand along his beard, as if looking at this scene triumphantly. Some people cast a disdainful eye on him, although this guy is from the Institute of Physics, can he do this regardless of shame?

The students counted the silver taels indignantly, but they didn't dare to resist for the time being because of the dignity of the teacher.

"Mr. Huang, you already know that this five-hole kettle produces water faster than a one-hole kettle!" A student named Hu Yu finally couldn't bear it anymore, stood up and said loudly, "Neither tell us, but also not stop us from fighting, but only bet after everyone has bet, this is not fair!" Someone took the lead, and the students who had lost the money immediately started to coax loudly. To put it bluntly, Scholar Huang has not had any majesty since the beginning of the class, and the students are also used to it, otherwise it would be impossible to gamble in the hall. Those who lose want to take the opportunity to play tricks, and those who win naturally do not follow, and for a while, the hall is chaotic as if it is a busy city, and there are no rules.

When it was in chaos, there was a sound of "bang", like a thunderbolt on a sunny day, all the scholars were in their hearts, and when they looked up, they saw that Huang Zhijiao was standing on the table with cold eyes, holding the ring ruler in his hand, and the loud noise just now was the sound of the ring ruler knocking on the table table. Since they were studying, they all grew up under the ring ruler, and they had a natural fear of this thing, and they were suddenly silent.

"Don't say it's unfair," Huang Yongqing said coldly, "What the School of Physics teaches is the way of nature, when knowing things compete for natural selection, survival of the fittest, the weak eat the strong is the natural principle, for animals, the weak meat, the strong food, it is fair." Then, it is also fair for people to 'eat' those who don't know. Hehe, can a sheep be unfair in the belly of a tiger? He glanced at the students and said in a deep voice, "I don't care what you learned in the Academy of Literature and Scripture, when you come to the Academy of Physics, we only talk about the way of physics, do you understand?" ”

"Got it?" Huang Yongqing slapped the ring ruler on the table again, making a loud "bang".

All the students couldn't help but be shocked, and they all agreed: "Understood." ”

Huang Yongqing nodded at this time, and said slowly: "Since you understand that this is a matter of life and death, then I will tell you why these five small holes flow faster than a large hole with the same area." "When other conditions are the same, the smaller the diameter of the opening, the greater the speed of the water flow, in the eyes of the students, although his character is too poor, but the teaching of the principle of physical properties is indeed in simple terms, Luoyang officials and scholars are all rural songs, and soon understood, and couldn't help but frequently bow.

"Such a simple truth," muttered some of the students, "what's the use of pretending to tell yourself?" ”

"Useless?" Huang Yongqing sneered, "It's useless to study the principles of physical properties, so what's useful?" He looked at the unconvinced people, and said, "Then I'll explain it in words that you stupid and blind people can understand." For the same area, several small holes flow faster than one large hole, which is used in river control, that is, with the same cross-sectional area, several small rivers divert floods than one main channel. The embankment that heightens the main river channel is called 'blocking', and the multi-party diversion is called 'sparse'. This is Dayu's water control, the so-called 'blocking is not as good as sparse', you fools, have read books for more than ten years, but you only know it, I don't know why. I'm embarrassed to say that the study of physics is useless, what a fool, a fool! I'm! ”

With a "snap", the ruler sounded again. This time, some of them were thinking, some were ashamed, and there were no more frivolous and forceful arguments.

The government encourages everyone to have their own interests and be eclectic, and each college must show real skills to attract scholars to attend classes. In general, with the fashion of the Kanto scholars, the lectures of the two schools of literature and diction were full, especially the lectures of Li Zhi of the academy of literature and dictionaries. Li Ruoxue's words are even more beautiful, not only are the seats in each class full, but even the stations inside are full, and there are those who can't linger outside. Physics, astronomy, geography, and arithmetic are "miscellaneous studies" with the motive of applying what they have learned and showing off their skills to the public. The most tragic thing is the agricultural and pastoral courtyard, which is simply a crowd, and there are four or five people sitting in the lecture hall that can accommodate hundreds of people, and these people are also listless.

In order to retain people's hearts, in the evening, Long Tianguang, who was directly lectured by the Agricultural and Animal Husbandry Institute, actually made an exception to invite the students who listened to the class to dinner.

"Alas, Kanto claims to be agriculture-oriented, and the agricultural and animal husbandry institutes are actually full of people, which is really ridiculous, ridiculous! I think I was ...... in Dunhuang back then," Long Tianguang looked at the students' blank expressions and closed his mouth depressedly. In Kansai, scholars have the responsibility of guiding the shade households, and even the princes will discuss how to raise horses, grow grass, and how to improve the output of the shade households during banquets. However, these Kanto people will never believe it.

Several students came to the Agricultural and Animal Husbandry Institute to listen to the lectures, not because they had any great ambitions, but because their literary qualifications were really poor, so they had to come to the Agricultural and Animal Husbandry Institute. The so-called scarcity is expensive, and everyone understands it. Having said that, they have self-knowledge, and they are likely to become the first batch of officials of the Agriculture and Animal Husbandry Department in the Kanto region, which is really a fool's luck. However, now the students don't seem to hear the complaints about Long Zhiyan, not because they deliberately despise Mr., but because they are surprised by what Long Tian Hikaru invited him to eat.

The bright red thing in everyone's bowl is actually sheep blood! Coagulated, not boiled raw sheep blood at all!

Zhu Baohan usually claims to be gluttonous, but in the face of this bloody bowl of raw sheep blood, the hairy hair in his throat wants to vomit.

"Mr. Long, can you eat this? Have we not become blood-drinking savages? Zhu Baohan said with a sad face, and Wu Li Shuzhen also nodded: "The ancient Suiren clan drilled wood to make fire to dissolve the fishy face, Mr. Long, this raw sheep blood ......, we might as well cook it and eat it?" "The two of them are the tallest among the short, and they are the most blue-eyed among the sentient beings, and when they have the courage to say this, all the students say yes.

"Boil? It's a terrible thing! Such pure lamb blood, if it weren't for the breeding animals all begging for Mr. and me, where would you be able to get it? Long Tianguang said with a look of regret, he looked at the frightened looks of the people, shook his head, grabbed a pinch of leeks and pepper and other spices from his left hand and sprinkled them into the sheep's blood, and with his right hand, he scooped up a spoonful of boiled haggis in the pot, poured it into the sheep's blood bowl, and then snorted in one breath, and ate the bottom of the bowl almost instantly. The so-called way of teachers and students is also in the same direction. The gentleman ate so happily that although the faces of the servants were embarrassed, they reluctantly took the blood of the sheep.

"Happy, happy!" The corners of Long Tianguang's mouth were still bloodstained, and he said with a smile, "I haven't eaten such a delicious lamb blood soup for a long time." ”

"Hurry up!" He looked at the crowd and took a small bite, a small bite, frowning and eating as if eating poison, and couldn't help but get angry from his heart, and reprimanded, "The so-called 'strong ambition to eat Hulu meat, laughing and thirsty to drink Hun blood', my Daxia soldiers fought in all directions, chasing the dead and chasing the north, not to mention drinking raw blood, if the military food is not enough, human flesh will also be eaten." How can you be such a mother-in-law. Not to mention such a delicious lamb's blood soup. I don't know what to do! Although they also tasted the taste of sheep's blood soup, they felt that it was not a taste in their hearts when they thought that this was Ru Mao drinking blood.