Live broadcast: Ancient people accompany me to make up lessons

The planet is beautiful and the universe is mysterious and vast. No one can watch it without being shocked, but lucky viewer No. 6 Yuan Chang still pays more attention to his feet.

"Anchor, if our Milky Way and the Andromeda Galaxy collide in the future, will the entire solar system including the Earth be annihilated?"

His friend looked at him with a very speechless look. He promised to pay more attention to his feet. Is this what you care about?

Yuan Chang: Otherwise, this is about our earth. Isn’t that enough?

[This is a small question. Who hasn’t been curious about this kind of thing?

"The Milky Way's barred spiral galaxy was originally much smaller than it is now. It gradually expanded to its current size by continuously absorbing and merging surrounding small galaxies.

It is estimated that the Milky Way has swallowed 11 small galaxies.

Two billion years later, the Milky Way and the Andromeda Galaxy are getting closer and closer. The two galactic nuclei pass through each other. If the movement speed is not enough to gradually move away, they will approach each other again due to gravity and merge into one.

During the fusion process, the structure of the two galaxies is completely distorted and destroyed, and then reorganized. "

I remember someone had made a simulation diagram of the collision between the Milky Way and the Andromeda Galaxy, and Xiao Xiao found it and showed it to them.

"But there is no need to worry about human civilization and the earth, because either human civilization will not live for 20 billion years, or human civilization should have the ability to transform the galaxy by then, and there is no need to worry about them crashing."]

civilization.

Everyone paid attention to this word again.

So far, they have heard about ocean civilization, continental civilization, Chinese civilization, and now human civilization.

I have noticed a long time ago that the civilization of later generations is completely different from their current civilization. It seems to refer to something in a broad sense, with people, writing, art, science, and ideas...

Two beautiful galaxies slowly approached, then burst into light, mixing and twisting together.

Very romantic, but also very scary.

Those lights, aren't they the planets and stars that exploded after so many planets collided with them, right?

A layman just watches the fun, and is at most inspired to write poems, while a serious astronomical person never stops making calculations.

For example, think about how long this collision process will take, whether all stars will be affected, how long the whole process will last, and will they still be the same stars after it is over...

Lucky viewer No. 7, Cao Rui, had an unlucky day when his father did not care for him and his mother did not love him. He guessed what Cao Pi was thinking and simply asked: "Then anchor, how do you define the development of civilization, and where are you now?"

It doesn't matter, since the general trend of the future is already very clear anyway, there is no point in asking about the details. It is better to ask about the future that has nothing to do with them.

[When a person with this name asked this question, Xiaoxiao felt that it was quite inconsistent.

“In 1964, Soviet astronomer Nikolai Kardashev proposed a hypothesis to evaluate the level of development and technological progress of a civilization based on the scale of energy it can control.

His civilization level was originally divided into only three levels. American astronomer Carl Sagan improved on this basis, divided civilization into seven levels, and introduced a formula to calculate the civilization level at any power level.

The first-level planetary civilization, the second-level stellar civilization, the third-level galaxy civilization, the fourth-level river system civilization, the fifth-level dimensional civilization, the sixth-level cosmic civilization, and the seventh-level civilization are already unimaginable existences and cannot be named. . ”]

I lost my temper, it’s the Soviet Union and the United States again.

Control of energy. Are those energies the water, electricity, heat, and light she mentioned before?

First-level civilization, does that mean the utilization of all the resources on the earth? The second level is the solar system including the sun? The third-level Milky Way, the fourth-level extragalactic galaxy?

Cao Rui, who asked this question, did not expect that later generations would really have such a clear division. Is this classification their plan for future development?

Survival is a problem for them, and they are really shocked by the behavior of future generations looking beyond the universe.

[Drinking water, she thought that many people should be as excited as she was when they heard this concept for the first time.

“According to Carl Sagan’s formula, our current civilization level is only about 0.73, which has not yet reached the first level threshold.

Because we cannot yet harness and control all the energy on Earth. Currently we can only rely on limited energy sources, such as coal, oil, natural gas, water, wind and solar power, and there is a lot of waste in the process.

When we fully reach the first level of civilization, we will be able to control and utilize all the resources and energy on the earth, and we can transform our earth at will.

This level of civilization has broken through the gravitational constraints of its home star and can freely travel into space, and has established large and small colonies and living and scientific research areas on other planets. Medical technology will also achieve great breakthroughs, and most diseases within the control of genes can be completely cured. "

But this breakthrough seems to be far away. 】

There is no rush to arbitrarily transform the earth and go to space, but with the breakthrough of medical technology, most diseases can be cured, and many people care about it.

Is this what developmental science can do?

If a first-level civilization can completely cure most diseases, is it possible that later civilizations can extend lifespan or even achieve immortality?

But when I think that it has only developed to 0.73 in thousands of years, and has not yet reached the first level of civilization, my fiery heart is sobered by a ladle of cold water.

Take your time, they don't even have that 0.73.

Li Shimin couldn't help but complain: "The weapons of their later generations are so extraordinary. All kinds of missiles, but they don't even reach the first level of civilization?"

Queen Changsun said: "To utilize the energy of the entire earth, first of all, we also need a unified political power of the earth."

Just looking at the news from later generations, there are still ongoing wars in different places there. In this situation, it is impossible to use the energy of the earth in a unified way.

Lucky viewer No. 8, Cao Zhi, followed his eldest nephew and sent the "Ode to the Weaver Girl" he wrote yesterday and the "Ode to the Galaxy" he had just written temporarily for the host to appreciate. By the way, he asked the host if he knew his father's poems.

Cao Pi's eyes were dull, and I also wrote the "Essence to Huang Daopo"...

As soon as his two poems were published, they immediately aroused the pursuit of scholars from all over time and space. Everyone copied them frantically. It is indeed Cao Zijian who is extremely talented!

Liu Che couldn't help but copy it by himself.

I can only be glad that he didn't know that Cao Zhi was Cao Cao's son. There are no history books that can tell what the Cao family did.

[This kind of fairy-tale article, even if I can't write it, I can still appreciate how good it is after so many years of Chinese education.

She asked the system to take a screenshot and copied it slowly, then took out the Chinese textbook.

"There are quite a lot of Cao Cao's poems in our textbooks, such as "Guan Cang Hai", "Dan Ge Xing" and "Gui Sui Shou". You have many famous poems and poems. "Taishan Liang Fu Xing" is also in the textbook, and it has been basically proved that It's not "Poetry in Seven Steps" written by you.

Cao Cao, Cao Pi, and Cao Zhi, we generally call them three Cao, are representatives of Jian'an politics and literature, and are very famous. ”]

Cao Zhi: I’m very happy that my father’s poems are still included in your textbooks, but there are many better poems by him. Do you need me to send them to you?

What is another seven-step poem? How on earth did a poem not written by me become mine and appear in your textbooks?

Cao Pi: So among the three, my works are the only ones that are not included in the textbooks, and you, the host, don’t know any of them, right?

If you could name one, I would feel better!

Thank you, anchor. Now I am eager to win. As long as you let me win once, I will let you see Cao Pi's literary prowess.

Over in Shuzhong, Liu Bei felt that he could not lose. It was not like he had not written poems. When Kong Ming came back from his work, he took him to give Adou extra lessons.

We must learn science, but we must not lose poetry. Others have Jian'an literature, and we cannot have nothing.

Over at Soochow, Sun Quan has the same idea as Liu Bei, and his literary name is also his famous name. It makes no sense that only the Cao family has it, and the Sun family must have it too.

He has little hope, but his descendants should work hard.

For example, here in the Three Kingdoms, many people in other time and space look at their children. The father is okay, but the son can't be too bad, right? Dad, if you can’t do it, why don’t you stop working hard?

When the ninth lucky audience arrived, Li Tai was caught. Looking at Aye in front of him, he was very stressed.

Li Shimin stared at his son and said seriously: "Books, we must find a way to get a book that exposes their Tang Dynasty. If there is no Tang Dynasty, books similar to those that Wuhou wants will do."

If not, get some physics and chemistry books, they need them very much for the development of Datang.

Li Chengqian pretended to be silent beside him.

Since Aye has always refused to agree and let him study physics, he will not remind Aye how much Qingque likes watermelon.

Li Tai nodded, that's right, but I'm not the emperor, nor the prince. He Aye didn't win, so why should I come to snatch his chance.

Books or something, we are not named Zhuge, nor do we have the advantage of being the first, so we can't get it, Aye.

Besides, I'm wasting the opportunity to ask for it now, how can I exchange things with the anchor in the future?

Seeing his son nodding, Li Shimin, who thought the matter was settled, sat down and was thinking about how to refuse if everyone asked him to borrow books from him later.

Then he wanted to beat the child.

"Anchor, the melons here are all red and white, why are they all so red!"

The emperor's father was not enough evidence, but his mother-in-law was also nearby, so she still had to take care of her feelings. Li Tai, who gave up asking for the melon seeds directly, asked this first.

Leave a good impression on the anchor, and there will always be a chance to do something else in the future!

Li Shimin really wanted to beat his son. It was such a good opportunity to ask something that was not very important?

Li Tai: But melons are very important to me. I believe in you. Aye, you will get it sooner or later!

Li Zhi, who lives in another time and space, is not surprised by Li Tai's question. There is a reason why his brother is fat, but he just doesn't know how he will be taught a lesson later.

It is true that he loves the children, but he also cares about the country and people of the Tang Dynasty.

[“In fact, a few decades ago, our melons were expensive and scarce. Today we can enjoy the freedom of eating melons, thanks to Grandma Wu Mingzhu of Watermelon.”

Start searching skillfully. If you are interested in this topic, let’s take a look at the popular science. 】

Grandma Watermelon?

The last Granny Huang reborn Songjiang and brought the technology of growing cotton and weaving cotton. Did this Granny Wu bring watermelon into the homes of ordinary people?

[In 1930, Wu Mingzhu was born in a scholarly family in Wuhan, Hubei Province, and had excellent grades since childhood.

At the age of 19, she was admitted to Southwest Agricultural College and became one of the first batch of college students in my country. Among many majors, she chose fruit and vegetable planting as her future development direction.

Also enrolling with her in the same year was Yuan Longping, a rice major.

When I was in college, a gentle-looking southern girl with glasses was in the experimental field every day, exposed to the wind and sun, picking manure and fertilizing, but she never said a word about the hard work, and instead enjoyed herself in the field. ]

"Agricultural College, you still have to study..."

Considering that Li Tai is so obsessed with this melon, he will be asked to plant it by himself after the live broadcast during the day. Li Shimin, who was very restrained in beating his children, sighed.

There may not be people who are good at farming in the Tang Dynasty, but it is difficult to discover, recruit, sort out their experience, and further study and explore.

This matter is too time-consuming, but it must be done within years or decades. Therefore, if we want to develop, we must ensure that Datang's external and internal environments are both healthy.

There have been so many great figures and different works and researchers in the past, and most scholars have begun to let go of their previous prejudices.

People of later generations read more books than they did, and what they learn is no longer just knowledge on paper, but must be practiced personally.

In a certain private school, Master Xiang said that starting next year they would also go to the field. Some people were curious and looking forward to it. Some people were already trembling at the sight of Wu Mingzhu's workload.

Seeing that most of the students were like this, the Master snorted coldly and asked: "She is a persevering and amazing person. She can do different things. As an ancestor, can she still be inferior to future generations?"

The students were said to be ashamed and bowed their heads, but deep down they really felt that they couldn't compare.

[A senior from the same school told her about the situation in Xinjiang, saying that there was a shortage of talents for growing fruits and vegetables. She remembered what her senior said and decided to go there after graduation to do her best. The idea of ​​​​power is firmly engraved in my mind.

In 1953, after graduation, Wu Mingzhu was assigned to the Central Rural Work Department as a young talent. She was able to enter the central ministries and commissions at a young age, but she was not happy.

What she wants is to use what she has learned to actually do something for the country.

Two years later, the Xinjiang Uygur Autonomous Region was established. At the age of 2, she and her leaders worked hard before she was finally transferred from Beijing to Xinjiang. After arriving in Urumqi, he took the initiative to apply to go to Shanshan County in the Turpan Basin, which is the lowest level. ]

Every time the kings saw the stories of these later generations, they were shocked in a different way.

In their lives, they have seen a lot of ambitious and capable ministers, but it is really rare that they turn a blind eye to such good opportunities and do not care about suffering and just want to do something to bring benefits.

If you go there for fame or other things, you may not be able to achieve results for decades, and the benefits will be far smaller than staying in that work department.

But she did it just for her ideal.