Chapter 175: Fly out of the Milky Way? Go through the solar system first!
The sky screen video about gold ends.

The story begins with gold.

Later, everything can be considered as the universe, which was extended to the cosmic level.

The thoughts of the ancients also followed the lens of the sky curtain.

Looked up at the sky.

Thinking about the loneliness and greatness of the universe.

It is human nature to look up at the stars.

Previously, due to limitations in technology, ancient people were not able to observe the universe, nor did they know much about it.

But since the sky curtain appeared.

directly or indirectly,

It popularized a lot of cosmic astronomical knowledge for the ancient people.

For example, people now know it.

The solar system is centered on the sun.

The boundaries of the solar system are very vast.

There are other celestial bodies outside the solar system.

And the mysterious black hole, etc.

Although ancient people have never had a systematic understanding of what the universe looks like.

But compared to the previous simple era of the theory of the flat earth and the earth.

Countless progress has been made.

Nowadays, even two children arguing about the sun can say that the earth revolves around the sun.

This is also the scientific popularization function of the skylight.

As we all know, the more you know, the more ignorant you are.

This also made the ancient people's curiosity and desire to explore astronomy grow day by day!
Just now when I was looking at gold.

The topic started with gold, and later a lot of the content became related to celestial bodies, which the ancient people also enjoyed reading.

Even Ying Zheng couldn't help but make a bold guess:
"The black hole that appeared in the sky before seems to be the most powerful celestial body in the universe."

"Since Tianmu said that the fusion of two neutron stars can produce a large amount of gold."

"Since black holes are more powerful than neutron stars, wouldn't that mean they can produce more gold?"

"Xu Fu, what do you think?"

Xu Fu, who was slacking off on the side, secretly groaned in his heart when he heard Ying Zheng suddenly call his name.

Although I have been studying the skylight carefully in recent times.

I am also very interested in the astronomical and cosmic knowledge given on the sky screen.

But I really don’t understand it now.

How vast the universe is!

How can it be so easy to understand?

For a moment, Xu Fu couldn't think of a good answer.

So I can only tell the truth.

Give a sincere response based on what you already know.

"Your Majesty, although a black hole is a more powerful and terrifying celestial body than a neutron star."

"Even if two neutron stars collide and merge, it shouldn't be more powerful than a black hole."

"But according to what Tianmu said before, we know that the gravity of a black hole is infinite."

“I’m afraid that even gold elements are produced inside black holes.”

"It also cannot be launched into space and form dust containing gold."

"So according to what Tianmu told us, I guess that most of the gold is still produced by the fusion of neutron stars."

"Although I'm still not quite sure what a neutron star is..."

Ying Zheng was not dissatisfied with the answer.

He just nodded and said:
"Yes, that's true."

"I actually forgot about the gravity of the black hole."

After saying that, Ying Zheng turned around and looked at the recorder on the side.

According to Ying Zheng's arrangement.

As long as it is what the canopy displays.

No matter how big or small the matter is, the recorder must record it completely.

Ying Zheng planned to take another look at the content of "Interstellar" that Tianmu had previously told him.

Let’s review our knowledge about black holes.

And the new sky slowly appeared.

Maybe it’s because we just talked about gold and then about neutron stars in the universe.

Therefore, the new sky dome is also closely related to the universe.

【Do you know how big the Milky Way is? 】

Late Han Dynasty.

Zhuge Liang looked at the sky and knew that it was time for his favorite cosmic astronomy time again!
So he quickly sat up and started reading carefully.

And answered to himself.

"Although it is still unclear how big the Milky Way is, it is definitely much larger than the solar system we introduced earlier!" "Then, please show me how many solar systems the Milky Way is equivalent to?"

“The Milky Way may be like the Han Empire.”

"And the solar system is a state in the Milky Way."

"The Han Dynasty has fourteen states. Does the Milky Way have fourteen solar systems?"

[If you want to know how big the Milky Way is, can humans fly out of the Milky Way? 】

[First of all, we have to ask whether humans can fly through the solar system. ]

【Then we must master some basic knowledge of the universe.】

[Based on the Oort Cloud, the diameter of the solar system is about two light years. ]

What is the unit of light year?

【It refers to the distance light travels in one year.】

[The speed of light is the fastest speed in the universe known to humans, reaching 300,000 kilometers per second.]

[The current astronomical and physical rules of mankind are also based on the fact that the speed of light cannot be exceeded. ]

【The speed of light can circle the earth 7.5 times per second. 】

【At the speed of light, it takes eight minutes for light to travel from the sun to the earth. 】

【It only takes 1.2 seconds for a beam of light to reach the moon from the surface of the earth. 】

[From Earth to Mars, the speed of light only takes 183 seconds. 】

[The probe that humans have flown the farthest from Earth is Voyager 1.]

[Its speed is 17 kilometers per second and it has been flying for more than 40 years. ]

[But at the speed of Voyager 1, it would take more than 10,000 years to fly out of the solar system. ]

[Even if you fly at the speed of light, the fastest speed in the universe, it would take about a year to fly out of the entire solar system. ]

【After the above description, I believe everyone has a basic understanding of some basic cosmic speeds and how big the solar system is. 】

[The diameter of the solar system is about two light years, which is already so vast. ]

What about the Milky Way?

[The diameter of the Milky Way is over 160,000 light years! ]

[Even at the speed of light, it would take more than 80,000 years to fly out of the center of the Milky Way! ]

[And in such a vast Milky Way, there are nearly 400 billion stars in total! ]

[If every star is a sun, that would be equivalent to nearly 400 billion suns! ]

Late Han Dynasty.

Zhuge Liang stopped sipping his tea.

Zhuge originally thought that the Milky Way was equivalent to a dozen solar systems.

The solar system may be the frontier governor or local lord of the Milky Way.

but now.

It can only be said that even Zhuge Liang, a man of extraordinary talent, was shocked by the exaggerated size of the Milky Way and the number of stars it has!

"The sun is not unique?"

"There are hundreds of billions of suns within the Milky Way!"

“The vastness of the universe described by the sky is… too intoxicating and despairing!”

“How can human power fully explore the universe?”

“Are we humans really so insignificant in the universe?”

Zhuge Liang doubted his life and fell into EMO.

Recently, Zhuge Liang has been watching the sky carefully.

We also know that the Milky Way is probably much larger than we imagined.

But when the sky first appeared, it was explained what the speed of light is.

He then went on to say that the diameter of the Milky Way is so long that it would take light more than 80,000 years to travel out of the galaxy!

At the same time, there are hundreds of billions of stars like the sun in the entire Milky Way.

Zhuge Liang was still deeply shocked by this huge number.

Zhuge Liang couldn't sit still anymore.

Looking up at the starry sky, I fell into deep thought.

It had nothing to do with politics or military affairs. It was just his thirst for knowledge and desire to explore that made Zhuge Liang ponder for a long time.

"The solar system is just a small stone in the Milky Way?"

“The Milky Way is the entire universe, right?”

"It's so vast and boundless... How huge is the universe!"

"The universe represented by the Milky Way is probably a huge space that humans will never be able to escape from, right?"

"I wonder to what extent the technology of later generations has developed?"

"Do they have a chance to get out of the solar system, or even out of the Milky Way?"

"If humans can build colonies extensively throughout the Milky Way, then every country will have boundless land."

"I'm afraid there will never be war again in the world."

"Can future humans create a galactic human empire?"

(End of this chapter)