"Your world is too small, and your gods are too small.

This universe is made up of countless stars, and the world we are in now is round, and it is also a star, called the earth, and it is not a round place, and the sun, moon and stars do not revolve around. ”

"How is this possible? If the world is round, why haven't we fallen?"

Bai Yujing smiled slightly: "Has the Dao Elder ever noticed one thing, why did the apples fall to the ground, and the same is true of the stones thrown out?"

When the old Taoist priest heard this, he frowned and thought about it, and his brows twisted into a Sichuan character.

The little Daoist Qingyu who was standing behind the old Dao also pondered decently, and only the little Dao Tong looked at Bai Yujing curiously on the side.

And the divine power bar in Bai Yujing's mind has also changed from 8 points to 10 points.

Bai Yujing saw that they were all thinking, so he got up and looked at the surrounding scenery with his hands.

At this time, the sun has gradually come out, and a few golden morning rays are sprinkled on the eaves and pine trees of the Taoist temple, rendering a golden morning.

Bai Yujing looked at these mornings and thought about what to say next, waiting for the old way to think.

After a while, Lao Dao got up and walked behind Bai Yujing respectfully: "Xiaodao seems to have some clues, but he can't touch it, so please ask Shangxian to solve his doubts?"

A smile appeared on the corner of Bai Yujing's mouth, and he returned to the stone bench and sat down, and Lao Dao then sat opposite, looking at Bai Yujing longingly.

After Bai Yujing sat down, he said, "This is because of force. ”

"Force?" Lao Dao looked at him suspiciously.

"Yes, a massive object exerts an attraction or centripetal force on a small object, and the Earth is large enough in volume and mass and gravitational enough to be able to draw us firmly to the ground.

In that kind of star, which has little gravity, you can even make it more than ten meters longitudinally. ”

Hearing Bai Yujing's words, the old Taoist was speechless for a long time, and the little Taoist priest of Qingyu was also thinking about it.

After a long time, the old Taoist sighed: "The creation of heaven and earth is wonderful. ”

Then he asked: "However, in the preface of the immortals, this heaven and earth are not round places, and the stars do not surround this day and night...... The earth turns, I wonder how the universe works?"

At this time, Lao Dao is like a student with a strong desire for knowledge, eager for the watering of knowledge.

Bai Yujing smiled: "The earth is insignificant to the universe. The stars in this universe are divided into three types: stars, planets, and satellites, and there are meteorites underneath.

Stars form the core of a galaxy, in which the stars are guarded, and the planets and moons are revolving around the stars due to the centripetal gravitational pull of the stars. Satellites orbit planets.

The star system we live in is called the Solar System, the Sun is its star, the Earth is one of the planets, and the Moon is the Earth's satellite.

In addition to Earth, there are seven planets in the solar system, namely Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune.

Among them, Mercury, Venus, Mars, Jupiter, and Saturn are called Chen, Taibai, Yingfu, Sui, and Zhen respectively by you. As for Uranus and Neptune, you haven't seen it yet.

The earth is to the sun, but a lychee is to this Taoist temple. ”

After that, Bai Yujing paused, ignoring the old Taoist and Qingyu little Taoist priests who were already stunned, and continued:

"The earth is to the entire solar system, but it is only a small stone to Mount Tai.

In addition to the eight planets and their moons, the outer layers of the solar system are also filled with countless meteorites and stars. Broadly speaking, the radius of the solar system is two light-years.

What is a light year, a light year is the distance traveled by light in a year. Maybe you don't know this concept well, let me give you an example. Let's just say that it takes only one-tenth of a breath to orbit our earth.

In this way, we can see the size of the solar system.

The Milky Way is made up of hundreds of billions of sun-like stars, and the Virgo Supercluster, which is made up of tens of thousands of galaxies like the Milky Way.

The universe is made up of billions of these superclusters. ”

After Bai Yujing finished speaking, he looked at the stunned three.

Xiao Daotong was not shocked when he said the question of whether the earth is round or not before, but now he is also shocked.

Even children like him, who are only six or seven years old, are shocked by the immensity of the universe.

Lao Dao stroked his beard vigorously with trembling hands, and he didn't know how many of them were pulled off by him, but Lao Dao didn't seem to feel it at all.

After holding it for a long time, he held back a sentence: "It's terrifying." ”

When Bai Yujing heard this, he glanced at Lao Dao strangely, but he didn't expect Lao Dao to actually say this classic line that is very famous in modern times.

Immediately, Bai Yujing said: "The age of this world is also much older than you imagined. The earth we live on alone is 4.6 billion years old, and I don't know the age of the universe, but conservative estimates are tens of billions of years. ”

"This ......" Lao Dao's hands trembled, revealing the unrest in his heart.

"My division is not on Earth. The thing I talked about fighting the demon before happened in the distant universe, and I don't know how far away it is from the earth?

When the little Taoist priest Qingyu heard this, he immediately surrendered his hand to make amends: "It's Qingyu who is ignorant." ”

Bai Yujing waved his hand, indicating that he didn't need to care.

Lao Dao also stroked his beard and sighed: "Man is like a mayfly to heaven and earth, and now I know the greatness of this universe creation." ”

Bai Yujing looked at the column of the divine power panel in his mind, and it had become 18 points of divine power just now.

He used to have 9 points, last night he used 1 point to learn Tang Yin, there are 8 points left, and now he has 18 points, that is, he just got 10 points.

He had already observed that the increase in emotional power per person in the system was fixed at 1 point each time, that is to say, today's words had already shocked the three people on the opposite side several times in a row.

Well, I have to say that although this system is powerful, the design is a bit simple and crude. It seems that every time each person's emotional power is fixed at 1 point, and when it is used, it is also an integer, and there is no decimal point.

Although it can be brushed repeatedly, the emotional power gained by each person is indeed a little less, and one person only has 1 point at a time.

mmp, there were only a few people in the country during Wu Zetian's period, and it seems that there were only fifty or sixty million.

And he asked the system, in order to manifest the innate spirit treasure and immortal cultivation in his brain, why are they all measured in billions, and the divine power required by the immortal emperors and saints above is even more terrifying.

Especially in ancient times, there was no network, and there was no modern camera and video machine, if he didn't think of a way, he felt that he would evolve into an immortal I don't know how many years.

Bai Yujing was thinking about something, and Lao Dao got up and walked not far in front of Bai Yujing, knelt on the ground, and said respectfully:

"The disciple devoted himself to the Tao and entered the Tao for fifteen years, and it has been fifty years so far, but he has not tasted the true Fa. Please also go up to the immortals and have mercy on them, and lower the avenue. ”

Seeing their master kneeling, Qingyu Little Daoist and Little Dao Tong also hurriedly followed him to kneel behind Lao Dao.

Hearing this, Bai Yujing was stunned.

This is, apprentice?

and lowered the avenue, and he himself still can't. Bai Yujing secretly complained in his heart.

Do you want to say yes or not?

Looking at the 18 points of divine power he had left, he looked at Lao Dao and frowned and thought.

With 18 points of divine power, the embodiment of the lowest and most basic Qi Induction Realm exercises should be far enough.

Moreover, this master and apprentice saved his life yesterday, and also sent himself the first wave of emotional power, so it stands to reason that he should repay it.

However, I don't have much emotional power now, so I should keep it for big things. This is very troublesome for him.

Time passed like this, and only the rustling of the autumn wind remained in Lao Dao's ears.

Lao Dao did not raise his head, but still bowed his head, very pious.

After a while, I heard the voice of the immortal: "You get up and wait for a while." ”

Looking up and peeking up, Shangxian had already walked towards the wing.

He didn't think much about it, just asked what preparations he needed to make for the ministry, and continued to bow his head respectfully.