" And if we look for planets similar to Earth that can support all kinds of life with the temperature conditions that allow the existence of liquid water in these 5% of stars, what is the value?”
He Xiao pushed up his glasses and shook his head,"
"To be honest, the scientific community has yet to come to a conclusion on this. However, some people thought that this ratio was as high as 50%, while others thought that it should be around 22%.”
"Then let's take a middle value and combine it with the previous data of 5% of sun-like stars in the universe.”
"Then how many planets in the universe should be like Earth that could give birth to life?"
As he spoke, Crane Sky turned around.
The chalk made a "kaka" sound, and it was strong and powerful!
Another shocking number was written on the blackboard!
10^20！！
"That's right. In other words, everyone, when we eliminate all kinds of other factors, we will be able to get rid of them.”
"In the end, we estimated that there are about 10 to the power of 20 planets that might have life on them!”
" And if you consider that intelligent creatures have already appeared on these planets, and after many years of development, intelligent creatures have given birth to a true civilization."
" Then there will be about 100 trillion intelligent civilizations in the entire universe!! And just in our galaxy, there will be at least 100,000 intelligent civilizations!”
"Then speaking of which,"
In the live broadcast room.
Crane Sky knocked on the blackboard with a "dong dong" sound while pretending to be mysterious. He narrowed his eyes and looked at everyone in the live broadcast room.
"Students, here's my question!”
"As far as I know, there is a scientific organization on Earth called SETi (Search for Extraterrestrial Civilization) founded by the Space Laboratory of the University of California in the United States.”
"If there really are so many intelligent alien civilizations in the Milky Way.”
"Even if a very small number of them have sent radio waves or laser beams to the universe to contact extraterrestrial civilizations, then our STI (Extraterrestrial Intelligence Search) satellite array should have received it.”
"However, the strange thing is…"
"Since 1999, when SETi was officially established, they have never received any extraterrestrial communication signals in space. Not once!”
"The entire Milky Way is dead silent!”
"And what is the reason for this?”
Boom!
At this moment, in the live broadcast room.
As Crane Sky raised this question, many of the netizens in the live streaming channel gasped.
It had to be said that this question completely dumbfounded them!
Everyone began to frown and think seriously, falling into deep shock.
That's right!
If one thought about it carefully, this was too wrong!
After all, He Xiao had just used a huge amount of data to calculate and prove that there are definitely alien civilizations in the universe, and there are even many in our Milky Way!
There was no doubt about that!
But why did we humans have to search so hard for so many years?
However, it seemed that they had never received any radio waves or even laser beams from extraterrestrial civilizations?
It's like the humans on Earth are an isolated island in the vast ocean.
They were completely abandoned by other civilizations!
We clearly know that in this huge world, in this vast universe, there will definitely be our kind.
But we just can't find it!
He could only wander aimlessly, wandering, not knowing where to go.
"Ahem, students."
"This question is indeed puzzling.”
"But this is not the most shocking part!!”
At this moment, Crane Sky raised his cup and drank a mouthful of water.
He struck while the iron was hot. He knocked on the blackboard again and continued seriously,"You have to know that the solar system that we humans are currently in is actually a very young stellar system.”
" That is to say, in the entire universe, there must be many stars that are older than the sun and terrestrial planets that have existed for a longer time than our Earth!”
" Theoretically, the civilization of these terrestrial planets will be far more developed than our Earth.”
"After all, our Earth has only existed for 4.54 billion years.”
" Let's assume that there is a relatively mature terrestrial planet X in this universe. Its civilization development process is similar to ours, but the difference is that it has existed for a full 7 billion years!”
"That means that the civilization level of this planet X is 2.46 billion years ahead of our Earth!”
"Students, it's been 2.46 billion years!”
At this point, Crane Sky first revealed a look of infinite emotion, then continued to write on the blackboard,
"It is known that if we start from the evolution of the ancient apes, we are only 4.5 million years old.”
"If we count from the birth of human civilization, it's only 6000 years!!”
" In 6000 years, humans have gone from the slash-and-burn era to the current technology level where they can build simple spaceships and land on the moon.”
"What if we were given another 60,000 years to develop our technology?”
"Or 600,000 years, or 6 million years?!”
"Or even, a whole 2.46 billion years?!”
"Students, by that time, I'm afraid that human technology will have reached a level that we can't imagine now.”
"I can even say that by then, Earth will be at least a level 2 space civilization, or even a level 3 space civilization. We will be able to grasp the secrets of interstellar travel!”
When Crane Sky said this, his expression was a little excited.
At this moment.
In the bullet screen of the live broadcast room, there was also an eye-catching message: "Teacher, what is the space civilization level? Can you explain it in detail? Also, what level of technology is humanity at right now?”
It had to be said that a stone had caused a thousand ripples.
In an instant, this simple question aroused the interest of the other netizens in the live broadcast room.
This caused most of the netizens to send bullet comments and ask Crane Sky anxiously.
"That's right, teacher, why don't you tell us about the space civilization level?”
"That's right. Or you can tell us about the current level of our Earth and what each level represents?”
Hehe, everyone, don't be anxious.
In front of the camera, Crane Sky smiled faintly when he saw this.
At the same time, he turned around and picked up the chalk. He said to everyone,
"Students, we calculated that there are about 100 trillion alien civilizations in the universe, but why haven't we discovered them? And why hadn't SETi received any signal from them?”
"Now, let me formally explain to everyone.”
"Before I explain, I have to answer the question from the student just now. What is the level of space civilization and what level is Earth currently at?”
After he finished speaking, Crane Sky wrote a line of clear words on the blackboard:
Please remember one thing!
The technological level of human civilization had always been closely related to the total amount of energy controlled by its citizens!
This was Kardashev's level! (Space Civilization Level)
"Students, you should know that in 1964, the Russian astrophysicist Nikolay Kardashev once proposed such a point of view.”
" The level of civilization in the universe is closely related to the total amount of energy that civilization can control.”
" In other words, the more advanced a civilization's technology is, the more energy they can control and use.”
" And in my understanding,"
"If one day, we humans can completely control the core, mantle, and crust that make up the earth."
" Able to completely control typhoons, tsunamis, earthquakes."
" And when the power of the entire Pacific Ocean, Atlantic Ocean, Arctic Ocean, and even the entire continent of Asia and Europe is fully developed to the limit, the total amount of energy will be around 10 to the power of 16 Watt.”
"At this point, we can be considered a level 1 space civilization.”
He Xiao drew a small circle on the blackboard and wrote the words 'level 1 space civilization'.
Immediately after, outside this small circle.
Crane Sky drew a big circle again and smiled at the netizens in the live broadcast room."" Then, everyone, now that the introduction of a level-1 civilization has been completed, what is a level-2 civilization?”
"This time, we will use the entire solar system as an example.”
"We all know that there is only one star in the solar system, the sun, but it also has eight planets, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune!”
" Of course, there are many small satellites like the moon around these planets!”
" If humans can completely develop all the energy emitted by the sun and fully utilize all the energy of the eight planets, the total amount of energy should be around 10 to the power of 24.”
"At this point, we can say that it is a level 2 space civilization.”
Whoosh!
After He Xiao divided the space civilizations into level 1 and level 2 space civilizations.
In the live broadcast room, many viewers felt shocked again, as if they were about to suffocate.
Oh my god!
A level 2 space civilization could develop all the resources in the solar system.
What about level 3 space civilizations?
How powerful would that be?
This was simply unimaginable!
At the thought of this, the bullet comments in the live broadcast room flooded out again, fighting to be the first to ask Crane Sky.
"Teacher, a level-2 civilization can actually be so powerful!”
"Then what level will a level-3 civilization reach?”
"What resources do level-3 civilizations need to control?”
"Yeah, we all want to know the answer."
"That's right, that's right. Teacher, please tell us quickly.”
"That's right. I beg you, Teacher. My mother told me to sleep early.”
"Keke, I can't accept it if I don't see your reply and hear about aliens!!!!”
In the live broadcast room.
Countless netizens wailed.
At the bottom of the screen, everyone had the title of "Teacher" and kept asking Crane Sky questions.
One had to know that there were high school students and university students in this live broadcast room.
There were even those in their thirties or forties who were already married and working!
But at this moment, how could they still remember?
Crane Sky was originally only an 18-year-old high school student, much younger than them!
All they knew was…
At this moment, this intense thirst for knowledge had long tortured them to the point of wanting to die.
They were eager to know the mysterious knowledge that the school had never absorbed.
He wanted to know the real reason why humans had not discovered aliens until now!
On the other side.
Under the crazy barrage of comments.
In his bedroom, Crane Sky had also officially explained what a level 3 civilization in the universe looked like.
"Students, as we said earlier, a civilization that can use all the energy of their planet is a level 1 space civilization.”
"A level 2 space civilization is able to use all the energy in their solar system.”
"Then…"
"What is the state of a level 3 space civilization?”
At this point, Crane Sky turned around and drew a bigger circle on the blackboard with chalk!
And this circle, this time, completely enveloped the level 1 and level 2 space civilizations!
"That is, to be able to use all the energy in the galaxy!!!”
"In other words, if the humans on Earth want to successfully become a level 3 space civilization, we will have to face the same fate.”
"Then we must have the corresponding technological ability to successfully develop all the planets in the Milky Way!”
"In other words, the total power is 10 to the power of 36 Watt!!!”
Whoosh!
At this moment, the voice fell.
In the live broadcast room, everyone was once again shocked by his data.
Obviously, regardless of whether or not Sky Crane's space civilization ranking system was reliable.
Today, Crane Sky was able to calculate all the energy required by three space civilizations on his own.
This was a little too scary!
Speaking of which, what was wrong with this guy's brain?
Even a top student from China's Aerospace University would not have such a solid grasp of astrophysics as He Xiao!
Especially Teacher Wang, who was outside the room.
The more she listened to He Xiao's explanation, the more she could not help but feel shocked.
He Xiao's parents, Jiang Chen's uncle and aunt, and his genius cousin.
They were also dumbfounded by this series of super complicated operations!
But what happened after the shock?
These people just felt that He Xiao was really amazing in their hearts. He was simply too f * cking awesome!
may
The strength behind this awesomeness?
What about the future it represented?
To be honest, this group of people did not understand at all!
They simply did not understand!
They didn't know that what He Xiao said meant that if He Xiao could successfully enter the Chinese Academy of Sciences in the future, he would be able to enter the Chinese Academy of Sciences.
Then, the world's technological level would very likely usher in a crazy surge!
Even if it was just He Xiao alone.
He might even be able to trigger a technological revolution!
One had to know that this was a hundred-year opportunity that the heavens had given to the rise of Xia Country!
Thinking of this, the biology teacher decided to call his teacher, Professor Liu Jianguo of Qingbei University.
just because
She really did not want Xia country to miss out on a top genius!!!
"toot-"
"Hello? Teacher Liu, I'm really sorry to disturb you so late at night. Did you see the live broadcast link I sent you just now?”
"This is the young genius I told you about before, Crane Sky. Currently, he's calculating the total energy of various civilizations in the universe for the netizens. I have to say, it's simply too exciting!”
What was that?
Calculating the energy of space civilizations?
How was this possible?
This was simply nonsense!
On the other end of the phone, Liu Jianguo's old voice sounded a little reprimanded."Xiao Wang, it's okay to disturb me, but didn't I tell you before? A child like this is a rare talent. A moment of interest and talent on a whim cannot represent how limitless his future achievements are. Don't be obsessed with this.”
" But, but the number of alien civilizations that Teacher Jiang Chen calculated using Fermi's paradox is highly credible!”
"Especially the data he used for reference and calculation. It was also verified by the geography team of New Village No.2 Middle School that it was the latest scientific research results published by the American Geography Association yesterday. There was almost no deviation!”
What?
On the phone, Liu Jianguo gasped.""Fermi's Parabola? The American Geography Association?"
"Isn't that a topic for space physics graduate students at the Aerospace University?”
"Wait, I'll go take a look."
After saying that, Liu Jianguo hung up the phone in disbelief.
Then, he stood up and walked to the desk that was filled with books. He put on his presbyopic glasses and called his granddaughter Nana over."Nana, come quickly. Help Grandpa turn on his phone. I want to watch a live broadcast.”
"Hmm? Live broadcast?"
"Hehe, Grandpa, why are you suddenly watching the live broadcast?!”
"Could it be that you're too tired from your usual scientific research and want to play games and pursue the fun of young people?”
At this moment, in the study room, a beautiful girl with long black hair, gentle and obedient, held Liu Jianguo's arm and teased him while smiling like a fairy.
After all, live streaming was something that young people would only use for entertainment games.
Grandpa was already so old. Why did he suddenly think of using his phone to broadcast?
This was simply like the sun rising from the west!
"Sigh, Nana, don't mess around."
"Today, a former student of mine recommended a third-year student to me.”
" It's said that he's very impressive now. He's broadcasting live on a platform called Huyu Streaming, explaining Fermi's Parabola to the netizens. He's even manually calculated the total number of alien civilizations, and now he's about to reveal why humans haven't been able to discover alien civilizations!”
What?
What did you say?
A high school student explaining Fermi's Parabola?
Calculating the number of alien civilizations?
How, how was this possible!
Was he lying?
At this moment, Liu Jianguo's voice fell.
This book comes from：m.funovel.com。