Live broadcast: Ancient people accompany me to make up lessons

It was still 6:30 in the morning, and the live broadcast started. The anchor's sign language teaching video was playing there. I finished my breakfast and went to answer the questions.

Because what she wrote today was a math problem, she immediately dismissed a large number of people. Except for those who were interested in mathematics, no one wanted to torture themselves with high school mathematics in the future.

While the anchor was doing math problems, Zhu Yuanzhang, who had not slept well all night, was also holding a meeting with his sons.

After a long night of talking with Queen Ma and her eldest son last night, they had some clarity.

In the future world, those European countries will rely on their own sea power to colonize everywhere, and the powerless Qing Dynasty will be a piece of fat they are eyeing.

Of course he didn't feel any distress about the Qing Dynasty, but those muskets and smoke were all against his Chinese people. Who knew they hadn't been targeting China since the Ming Dynasty.

As the anchor said, the reputation of all nations coming to court is a double-edged sword. The countries that interacted with the Ming Dynasty have been screened. Even if they are not as stupid as the Qing Dynasty, they have passively made other countries stupid.

By their time, the world was undergoing great changes. The methods of governing the country in all previous dynasties were not suitable for direct application, and the same was true for education.

People who think of Confucius and Mencius cannot produce those guns and artillery, nor can they grow high-yielding crops.

Although it is impossible to get everyone in Ming Dynasty to go to school, we still need to try to change education and promote the education methods of anchors.

It is useless to rely only on craftsmen. It is impossible to find all the real talents and even geniuses from craftsmen. From this point of view, even the current household registration system needs to be changed.

There were already so many things to do right after the founding of the country, but each one was so important that it could not be delayed.

Tired, really tired.

Not to mention Zhu Yuanzhang, from him to Zhu Houcong, the four Ming Dynasty emperors were full of urgency all night.

Not to mention them, the ministers were too frightened to sleep well yesterday.

Officials from the Ming Dynasty, who also had dark circles under their eyes, said that if they were lucky enough to be selected, they must let the anchor talk about the high salary in the Western country to support integrity, and let their emperor see how he paid to go to work with such a small amount of money. According to Tianmu, it is really Very inhumane.

At one hour, the anchor changed the sign language teaching video on the tablet to Braille teaching, turned over another math paper and continued working on it.

Okay, I got it, she waited until the end of the game and all 20 people smoked together.

At this time, it is when they admire the anchor most from the bottom of their hearts, and also admire those who can still communicate with the anchor about math problems.

Even if you understand what these questions mean, your eyes will feel dizzy when you look at them. How on earth are you thinking?

[1. Qin: Gongshuying 2. Qin: Fan Ye 3. Han: Hebei 4. Han: Diao Qi 5. Han: Piping 6. Han: Yuanchang 7. Wei: Cao Rui 8. Wei: Cao Zhi 9. Tang : Li Tai 10. Tang Dynasty: Ji Changguang 11. Tang Dynasty: Zhu Zhishao 12. Tang Dynasty: Yao Zhi 13. Zhou Dynasty: Wu Sheng Yang 14. Song Dynasty: Xi Yin 15. Song Dynasty: Zhao Xu 16. Ming Dynasty: Lang Zhiming 17. Ming Dynasty: Jiang Feng 18. Ming: He Chensheng 19. Qing: Li Changrong 20. Qing: Wu Rina]

After finally waiting for the lottery two hours later, people from the Three Kingdoms countries were holding back laughter when they saw the list.

Cao Pi couldn't understand the math problems at all, so he kept his head down and dealt with the work: "That's too much. How come my son, my brother, and my godbrother have all passed the exam, and Zijian can take it twice, but I didn't pass it once?"

The people around asked cautiously if they needed to bring King Pingyuan over. Cao Pi waved his hand, no, let's see what the boy would ask.

The future historical direction of the Three Kingdoms is already very clear. There is no need to ask anything in particular. A bunch of people combined are not as good as Zhuge Liang in the host's favor, so let him be.

Li Shimin, who didn't see his own name, but saw the name of his fat son, his eyes lit up and he asked all the children to be brought over.

Empress Changsun hesitated to speak. She knew very well what Li Tai would want to ask, but as the prince of the Tang Dynasty, he really couldn't do whatever he wanted.

Although there was no sound in this time and space, Li Zhi, who had several sons in another time and space, smiled. From the last question, it could be seen that this was when his brother was a child.

Jealousy is not jealous, but he is curious whether his brother was beaten from behind last time.

The lucky audience No. 1, Gong Shuying, stood up proudly in the eyes of the tribesmen with joy, saluted the sky, and asked a question they had been struggling to solve recently: why is it that a small basket can burn and rise, but it is difficult to fly when it is too big? .

After asking, put out all the experimental data they recently recorded, which includes the weight of baskets of different sizes, the weight of dye ingredients, and the materials and weights of other things.

The Mo family members, who were not sour at all, laughed. We in the Mo family don't go to the anchor whenever we encounter any problems.

Liu Che saw it with jealousy. Among Qin's lucky audiences before were the Mo family and Gongshu. They all knew who it was when they heard it. Now they are getting flying things for Qin, right?

The technology tree is clicked too fast!

The later dynasties, which already had a strong sense of urgency: We can't continue to make no progress. Great Qin has begun to study how to go to heaven. After thousands of years, how can we be worse than them!

[Xiao Xiao took a closer look and found that the main problem was the dye. The air above was not light enough.

"If it's a Kongming Lantern, a small candle is enough, but if you want to make a large balloon carrying people, you must ensure that the air above it is light enough."

The closest thing to this is a hot air balloon. She searched for a picture of the structure of a hot air balloon.

"The usual fuel for thermospheres is propane (CH?CH?CH?) or other liquefied media, and the liquid fuel is carried about 20 kilometers.

Our current liquefied gas production technology may be more difficult for you. You can see if other fuels can be used.

The thermosphere uses heated air or certain liquids, such as hydrogen and helium, which have a density lower than the density of the air outside the sphere to produce buoyant flight. The only flying motion is wind.

Light alone is not enough to raise it. If you try to make it, you have to pay attention to the landing problem. Usually there is an on-board heater inside the hot air balloon to adjust the temperature of the balloon hollow and thereby control the rise and fall of the balloon. ”]

Writing down the chemical formula of propane, Zhu Houcong classified it in his mind as a pure substance, a mixture of carbon and hydrogen, and he didn't know what the molecular structure diagram looked like...

Zhuge Liang, who was also following the recording, his eyes narrowed and he raised his head: What kind of lamp?

Wanhu of the Hongwu Dynasty slapped his thigh, yes, why did he just think about using gunpowder to reach the sky? Isn't it also possible to enlarge the Kongming Lantern and enlarge it again?

After receiving the answer, the Gongshu clan members quickly lowered their heads and started discussing.

"Our cloth can still be a little bigger. If it's too small, it won't be able to hold the lighter air..."

"It's still a dye problem. We have already tried it. Purified air cannot liquefy it. We can only find other dyes to test and see what can replace and burn out hydrogen..."

Lucky spectator No. 2, Fan Ye, glanced at his elder Fan Zeng, and under his gaze, he bowed his hands to the sky.

"Anchor, can you tell us more about the French Revolution?"

[Xiao Xiao: "This is a big time. Let's watch the documentary together in the evening. Lucky viewer No. 3."]

Hebei from the Han Dynasty and Wu Dynasty was one of the few mathematics enthusiasts. The anchor had just given a geometry question. He worked hard on it and found that the anchor's answer was not quite right with his own.

After posting his steps to solve the problem, he hoped that the anchor could come up with the correct answers and check them so that he could see where he went wrong.

[The steps to solve the problem are different from my own method, but logically there is no problem.

She took out the answer and saw that her steps and answers were correct. She simply followed He Bei's problem-solving ideas and demonstrated it to him. 】

Audience: Help, I really hate this feeling of a top student exchanging knowledge that they don’t understand.

Many students in the academy looked stiff and did not understand at all, but they had to continue listening under the urging of the teacher.

In pain, Wu Chengen glanced at Master Liu and asked, "Master, do you understand?"

Master Liu touched his goatee and smiled reservedly: "I have always been quite knowledgeable about mental arithmetic."

It's just that after so many years of rushing to take the imperial examination, this talent can only be played in private and out of boredom.

But when I think about it, there are many people in Ming Dynasty who are talented in science, but they all go to the books in the subject examination, and then tighten it in various ways. The more I think about it, the more heartbroken I am.

Students: Well, swallow your pride, Master.

Lucky viewer No. 4, Diao Qi, was also from the Han and Wu Dynasties. He wanted to know what the use of mathematics was. He felt that it was not as powerful as chemistry and physics. Why was it so painful to be tortured by it?

["Mathematics is very useful. In real life, simple mathematics can also have various applications, such as household expense calculations, tax calculations, etc."

Xiaoxiao understands the thoughts of Number Four. Before getting started in mathematics, everyone has thought about whether they can still use functions in life after learning such difficult mathematics.

"Although the steps we take to solve problems are boring, each step is a thinking training for the brain. Mathematics is a major that cultivates implicit skills, such as dialectical thinking, logical exercises, problem solving and quantitative skills, etc.

Learning mathematics does not necessarily mean you will become a mathematician. What is more important is the abilities you develop during the learning process. ”]

This is easy to understand. No matter how difficult mathematics is, from primary school to high school, children should develop the habit of using their brains to think about how to solve problems when they encounter them.

Of course, if you really can't think of a question, give up, but the first thing you need to do is think about it.

Lucky viewer No. 5, Piping, is from the Eastern Han Dynasty. What he really wants to know is how big their earth is compared to other stars.

Astronomy enthusiasts nodded wildly. They wanted to continue to see those colorful stars, and also wanted to know how big they would be in future generations.

[Comparison of planet sizes, this one is easy to find, just find the one with the highest number of clicks. 】

Astronomy enthusiasts and those who like new things opened their eyes wide and watched the gray-white bare moon appear, and then two vertical lines were stuck on its left and right sides, with the name and diameter marked in the middle.

There are no fairies or rabbits on the moon.

The romantics sigh, although science is very good, how come their moon has changed from a white jade disk to such a gray planet.

Every time they were sad for spring and autumn, Charon and Pluto appeared on the left.

Astronomers looked at such an intuitive size comparison and wondered how Pluto was counted as a planet at that time when it was not as big as the moon.

Using the moon with a diameter of 3500 km as a reference, Mercury with a diameter of 5000 km, and Ganymede with a diameter of 5500 km, everyone feels that it is okay.

But from Mars, which is 7000 kilometers away, to Venus, which is kilometers away, the feeling of oppression has begun to grow a whole circle.

Venus is only a little smaller than the Earth. It jumps directly from the Earth, which is kilometers in diameter, to Kepler 10c in the outer solar system, which is several times larger and has a diameter of kilometers. This giant Earth makes many people's scalp numb.

"Why is it called Big Mac Earth? How does it resemble the Earth?"

Even Luo Xiahong couldn't answer the youngest son's question.

After thinking about it, he guessed: "Maybe it's just a planet that they found that is close to the Earth according to our standards of living on Earth, so they called it that?"

Neptune, Uranus, and then the extremely huge Saturn and Jupiter. Compared with them, the earth, which is much larger than the moon, suddenly becomes small.

When one of the largest planets discovered came out, even Jupiter looked like watermelons and cherries compared with it, let alone the Earth, which is the size of a grain of rice.

In front of the sun, all the stars are worth mentioning.

Many people were already sweating on their foreheads.

Some of the previous pictures and videos are for the convenience of everyone’s understanding, so the planets are shown more clearly.

Today's video directly compares the size, which suddenly makes the earth and human beings look smaller.

When a screen can fit the sun exactly, you can't even see where the earth is.

Sirius, the beta red giant Gemini, Arcturus Boötes... the stars behind the sun have no planets, they are all bright stars.

It's just that some are yellow stars in their prime like the sun, some are white, and some are red.

It plays to the end of the known giant planets, with text and animation demonstrating the path of light and the distance that light can travel in one day and one year.

"It takes light 15 years to travel from one end of the galaxy to the other!"

"It takes the solar system two million years to orbit the Milky Way."

In the academy, the students who were also studying astronomy and geography couldn't hold it in any longer. They looked at each other and started discussing.

The young man in blue said melancholy: "The great power of heaven and earth...can humans really catch up?"

Qingshan classmate was surprised: "Why do people want to catch up with the light?"

The two of them looked at each other, and all the melancholy they had because of these huge planets disappeared.

"With the ability to observe them, the next step is of course learning and transcendence!"

"You have no respect for the universe and are just wishful thinking here!"

"Looking up at the stars is not just for the sake of seeing them!"

"Arrogance and ignorance, realizing the insignificance of human beings through the greatness of the universe, and reflecting on our actions is the right way!"

The friends who were trying to stop the fight stopped them and said anxiously: "Wait a minute, don't make any noise. Look at the sky. I never mentioned before that the Milky Way will collide with its neighbor, the Andromeda Galaxy!"