The road to technology

Chapter 728 Say my name and scare you

According to the normal worldview, it is indeed unreasonable.

But after all, this is the world of cultivation, where the laws of gravity and repulsion are intertwined, not to mention the collapse of large masses.

The reason why the exaggeratedly large Zandi Star is still small is because there is no intuitive understanding of the space and thinness of matter in the universe we live in.

So how thin is the matter in the universe?
If you want to have an intuitive concept of the thinness of the universe, you must first know the approximate total mass of the universe.

Then start from the earth first, according to M=gr/G, r is the radius of the earth, G is the gravitational constant, m is the mass of the object, g is the acceleration of gravity, and the value is 9.8m/s.So it can be calculated that the mass of the earth is M, which is 5.965x10 to the 24th power kg.

Then through the relationship between mass and volume, the average density of the earth can be obtained as 5507.85kg/m, although this method is not very accurate.But it is still possible to calculate the magnitude of the mass of the universe.

We all know that the mass of the sun is 1.9891 times 10 to the 30th power kg, which is 33 times the mass of the earth, accounting for 99.86% of the total mass of the solar system.There are about 1000 billion stars in the Milky Way, so through this calculation, we can roughly know the total mass of a large number of star clusters, nebulae, interstellar gas, and interstellar dust.

According to the standard model of the big bang universe, the age of the universe is about 138.2 billion years old, and the diameter of the observable universe is 930 billion light-years. According to the model, the number of galaxies in the entire observable universe is estimated.

If all these galaxies are calculated according to the average mass of the Milky Way, the mass of visible matter in the observable universe is on the order of 10 to the 53rd power kg to 10 to the 54th power kg, taking the maximum value.

We only count visible matter, so we don’t consider dark matter and dark energy, so we don’t need to consider the saying that the mass of the universe is only 28 grams.

Knowing the total mass of observable matter in the observable universe, then all of these masses are regarded as matter and then aggregated together.

Ignoring the problem of gravitational collapse, it is assumed that these substances are piled together according to the average density of the earth to form a large sphere.Then, according to the relationship between the sphere volume formula V=(4/3)πr and the density formula m=ρV, it is not difficult to calculate that the radius of this big sphere is about 35127164578329655.88701557915468 meters.

Such a long series of values ​​is dazzling, so converting it into light years is 3.71 light years, a sphere with a radius of 3.71 light years.

It is conceivable how thin the visible matter in the universe is. It is no exaggeration to say that driving a spaceship will always move forward without turning or avoiding, and it will not hit a star when driving to the end of the universe.

From this perspective, the galaxy is not the main body of the universe, but the dark void is.

Then, if the emperor-buying star in the Big Dipper Star Field is all solid, and its density is equivalent to that of the earth, then its diameter of 1.116 light-years is very exaggerated, and it can be said that it is not wrong to gather the essence of the universe here.

The Buried Emperor Star lived up to its reputation!
This is also the reason why the continental world is not big.

With the rapid fall of the Nine Dragons coffin, Yue Yuanzhou also entered this gigantic planet. At this time, he looked at the space within the stars, looking as if he really did.

"Time and space are as solid as gold, and layers of Great Emperor formations protect it. Not bad, no wonder these monks can fight here as much as they want."

Obviously, the time and space here have been artificially strengthened, and it is not easy for ordinary attacks to blast the time and space channel here, so it is particularly important for the monks here to master the means of a Great Emperor's pattern.

Clang!
Just as Yue Yuanzhou was sizing it up, Jiulong pulled the coffin like a plane crashing to the ground, landed on a mountain top, slid tens of meters towards the cliff, and then stopped slowly.

This is a land of towering green mountains and towering ancient trees. Among the mountains, there are nine peaks connected to each other, forming an incomparably huge valley.The valley was shrouded in clouds and mist, and a mysterious aura flowed in it. Looking down, it was dark, like the Huangquan Road directly piercing through hell, unfathomable.

Forbidden land.

"It's really like a crater. If a super cauldron is set up on it. Oh no, it should be a super large radio telescope. The nine peaks can be changed into nine equipment parts of the super large radio telescope. Really good." Yue Yuanzhou nodded, turning a blind eye to the strange life-eroding aura here, secretly expressing his opinion on this terrain.

He let the wine glass disappear digitally in his hands, and was about to stand up, put away the sofa and leave this place.However, at this moment, an ancient aura suddenly erupted from the depths of the valley.

Suddenly, the air in the valley blew endless turbulence, and the vitality of the heavens and the earth surged and transpired, and then a phantom exuding a terrifying aura loomed in the chaotic twilight of the valley.

The breath flowed in, and the ancient bronze coffin that had just been cracked was quickly closed with a bang, and then a pair of eyes looking at the past and the present looked over.

Ruthless?

Yue Yuanzhou was taken aback, isn't she transforming? Why did you close the ancient bronze coffin, everyone in the coffin is starving right now, if you don't let it out, you won't be afraid of starving to death?Is it possible to do something shameful?
This place is indeed a ruthless place, but what is she going to do?
Yue Yuanzhou simply leaned on the sofa, his gaze was in a quantum superposition state, he bypassed all the calculation programs and directly penetrated into the microcosmic high dimension from the rules, looking down into the valley.

At the bottom of the abyss, inside an open ancient stone gate, a fairy carved like suet jade sits cross-legged in the chaotic twilight. She is flawless in white, with black hair hanging from waterfalls, shining with soft luster like stars, peerless. Wearing a mask that looks like a smile but not a smile or a cry or a cry on the face, it reveals a pair of indifferent eyes that despise all the ages of the ages.

"mortal?!"

After a long time, an ancient voice with some doubts suddenly sounded, like ice that has not changed for thousands of years.

But how could it be a mortal? When she pulled the coffin of Jiulong to this place, she clearly felt that this guy was sitting leisurely on the dragon's head, and now he was not eroded by the ancient and forbidden life at all.

However, she did not sense the aura of cultivation in Yue Yuanzhou, as if she was an ordinary person whose sea of ​​suffering had not been opened, the spring of life had not yet been completed, and the bridge of gods had not yet been raised.

"You want to watch the Legend of Cultivating Immortals?" Yue Yuanzhou chuckled, his voice echoing in the valley.

It really is not an ordinary person, otherwise how could it be possible to transmit the sound like this.

But such a fresh and refined answer made Ruthless silent. She didn't know what the legend of mortal cultivation was, but suddenly she remembered that she had become a mortal.

"Who are you?" she said.

Um, does it matter who I am? Yue Yuanzhou was speechless, but this kind of question reminded him of 'Admiral Xing Daorong', so he replied with a suppressed smile, "Say my name, I'll scare you!"

After uttering the eight words, he stopped talking, and he was very happy to tell the truth.

"you"

The ruthless man waited for a while, but did not see the next sentence. Suddenly, his eyebrows were slightly frowned, and the displeasure sounded like a deep abyss, icy cold, did this person come to amuse himself? !It's just that she is very puzzled that there are such people who don't know how to live or die.

(End of this chapter)