I, the wall-facer, will educate the Kingdom of Light on the subject of three-body science!

Qingbei University.

Back on the classroom podium.

The students looked at Qi Ji with excited eyes.

Someone else cheered directly.

Because Qi Ji is already a celebrity at the moment.

As the first scientist to propose that extraterrestrial civilizations are likely to come into contact with humans.

still gained quite a few fans and fans.

Among them, of course, were his students.

At this moment, more and more people are interested in the life forms of other extraterrestrial civilizations.

"Teacher, teacher, can you sign me?!".

A female classmate stood up and took out a notebook.

"Teacher Qiji, I want it too!".

Another classmate also came over.

In addition, there are quite a few classmates who are.

"Ahem!".

Qi Ji coughed twice when he heard this, and said slowly: "It's class time!"

His expression became a little serious.

The classroom was silent for two seconds.

He looked intently at the expression on Qi Ji's face.

Qi Ji's brow stretched again.

smiled.

"Still, if it's after class, it's okay. "

As Qi Ji's words fell.

The classroom atmosphere is alive again.

Because Qi Ji is a gentle teacher on weekdays.

I don't get angry with the students casually.

The students began to scramble to ask questions.

"Teacher, how much do you know about the Three-Body Civilization, do you already know it?"

"Teacher Qi Ji, you took a leave of absence a week ago, and there was an official person to pick you up, are you performing a very important task?"

"The exposure of the ETO organization was arrested, is it related to the teacher?"

"Teacher, in the face of the three-body civilization, what means do we have?!".

"Are we really as small as bugs?".

"Bugs, can we really defeat people, can we really defeat higher civilizations?"

"Are there any other civilizations that might help us?".

......

The classmates asked in a rambling voice.

There is a wide variety of questions.

Qi Ji is to give answers one by one.

Of course, if it involves the secret of the upper class, it is tight-lipped and does not disclose it.

The atmosphere in the classroom was extremely hot.

Not a single deserter or sleeper.

Compared with.

The classroom next door is different.

Next door, Luo Ji, a professor of sociology at Qingbei University, is also giving classes.

But the classroom was empty.

Not a single student.

Because the students who attended the class, they basically took leave and temporarily changed the class that signed up for Qiji.

Some even moved chairs directly to the next classroom because they couldn't register for Qi Ji's class.

Therefore, the classroom where Luo Ji is located is extremely deserted.

There was nothing under the stage, only the faint sound of the wind blowing the curtains.

He rubbed his head, a little unsure whether to start the lecture or not.

Or can you just announce the end of class.

......

Qi Ji's lesson continues.

Because it's an astrophysics class.

Therefore, the main thing is to impart the relevant knowledge of astrophysics.

These include stellar structure and evolution, stellar atmosphere and spectral line analysis, planetary science, space astronomy, and various astronomical observation techniques.

Qi Ji's lectures are not boring at all.

Instead, he is good at using various metaphors to concretize abstract astronomical phenomena.

The students listened attentively.

"We think of the sun as a halogenlamp, so hot that it floats in the air and scorches the whole classroom to the point where it can't sit down. "

"So where is the Earth?".

Qi Qi said, pointing to the chandelier overhead.

"Of course, it's different from this LED light. "

"The earth is the size of a sesame seed, scaled year-on-year, and the classroom can't stay on the playground. "

Qi Ji stretched out his hand and gestured.

"It can also be placed in the parking lot on the ground floor opposite the flower bed. "

"And the moon is a particle of dust less than half a millimeter three centimeters next to the earth. "

"The distance between the Sun and the Earth is only 0.0000158 light-years. "

Qi Ji was in class, and was suddenly interrupted by a classmate raising his hand to speak.

"Teacher, from which galaxy did the aliens invade us?"

"When will their fleet arrive?".

"Can their technology destroy us?".

"Are we going to hide in underground bunkers, or somewhere to survive?".

"I heard that it was hundreds of years later, right?".

The student's words were also a little headache when he asked the same question.

Because the UN conference on the "Wall Project" has not yet taken place.

Not enough has been revealed.

So it's not convenient for him to say anything more here.

Telling students a lot of things directly may not necessarily be a good thing.

After all, the students' experience is not rich enough, and it is easy to be used by people with ulterior motives, and they may spread a lot of rumors with false rumors.

It is not impossible to cause more panic.

But in fact, relying on the imagination of these passers-by, all kinds of news have spread all over the sky.

Suddenly, a girl who was dressed up in a trendy fashion and had a good appearance raised her hand and stood up.

"Faculty of Law?".

Qi Ji looked at the nameplate on her chest and frowned slightly.

He didn't pay much attention.

"Classmate, is there anything you want to ask?"

"Teacher, I am a student from the law department, and I came to listen to your astronomy open class, and the questions I may ask will be relatively small. I wonder if humanity's current space telescopes will be able to see aliens, such as their fleets coming towards us?".

The girl looked at him expectantly.

"For now, it shouldn't be possible. "

Qi Ji groaned for a moment.

"From the solar system, observing the moon of another star in the universe is like looking at a mosquito next to a lamp on the east coast of the United States, while the trimaran fleet is only the size of bacteria on the mosquito's legs. However, if we set up the Hubble telescope in a low-Earth orbit more than 500 kilometers from Earth to reduce the impact of atmospheric disturbances on resolution, it is possible to see. "

"In other words, we still don't know anything about this alien civilization?

The law girl continued to ask.

That's a good question. "

"I guess that's what a lot of people want to ask. "

Qi Ji nodded in approval.

"Your question shouldn't be to me, though. "

"Instead, ask yourself, ask each of us ourselves. "

"At the moment, it's not what they want to do. "

"It's how we choose, decide and respond. "

"Humanity can only save itself, and it will only destroy itself. "

Qi Qi said such philosophical words meaningfully.

As soon as he said this, he looked at the students around him.

I found that everyone was also calm and lost in thought.

After class.

Qi Ji walked out of the classroom.

The law girl trotted two steps and followed.

"Professor Qi, are you free tonight?"

"I'm very interested in what you said in class, and I have some questions I would like to ask, can I ask you to have dinner and have a conversation?"

The law girl stroked the hair around her ear and said with a half-smile.