The heaven is round and the earth is not only a literal theory of the earth, but also a discussion of the way of heaven and the way of the earth.

This concept of "the sky is round and the place is round" is not proposed by Qingji.

The doctrine of five fortunes and six qi has been put forward in the "Yellow Emperor's Neijing", which summarizes the movement of heaven and earth energy.

Whenever there is a change in the energy between heaven and earth, it will gradually manifest itself in the observable macrocosm.

For example, when the "wood" attribute energy represented by the Seven Houses of the East arrives in spring, the earth thaws, seeds germinate, and everything recovers.

Enter a new round of "spring birth, summer growth, autumn harvest, winter storage".

With the change of the seasons, the health status of human life will also be affected differently......

Above the court, ministers such as Confucius, Fan Li, Ji Ran, Lao Tzu and other philosophers heard the concept of "the sky is round and the place is round" put forward by Qingji, and they were fascinated by it.

Especially Lao Tzu!

Lao Tzu is the founder of Taoism, and he is the most obsessed with exploring the mysteries of the universe.

Lao Tzu said: Tao gives birth to one, life to two, two to three, and three to all things......

"Dao" is "the order (command) of Fu Mo and is always natural", so "man is the law of the earth, the earth is the law of the sky, the heaven is the law of the Tao, and the Tao is the law of nature".

Lao Tzu was intelligent since childhood, quiet and studious, and often pestered his family to listen to the rise and fall of the country, the success or failure of wars, sacrificial divination, and stargazing.

The old lady wants her son to become a Chan, and asks an old Mr. Shangrong who is proficient in Yin Shang etiquette to teach.

Shang Rong is familiar with astronomy and geography, Bo ancient and modern etiquette, and is deeply respected by the Lao Dan family.

For exploring the mysteries of the universe, how can people from Taoism not be as fascinated as they are?

"Monsieur Müller, to tell you the truth, the widow thinks that the place where we humans are is a sphere, and it is for the earth."

"What?"

As soon as Qingji's words came out, it immediately caused everyone to be shocked.

Including Kong Qiu, Fan Li, Wu Zixu and other ministers, they couldn't help but be stunned and shocked.

Why did Qingji say that the world is a sphere?

Is the universe a sphere?

Qingji said slowly: "The world, no, to be precise, includes the earth where we humans are located, and all forms can be called "universes"!"

"How big is the concept of the universe?"

"Don't you know, Monsieur Müller, that the sun and the moon as we see them are round? From this, we can see that the place where we and other human beings are is also a circle, a sphere......

"'Universe' represents the upper and lower four directions, that is, all the space, and 'Universe' represents the past and the present, that is, all the time."

"The universe means 'all time and space'!"

"The surface of the universe is infinite, and the end of the universe is infinite!"

At this time, the concept of the universe has appeared, but it has not yet been translated into a single word.

The word "universe" first came from the book "Corpse", in which it was proposed that "the four directions are called the universe, and the past and the present are called the universe."

"Yu" refers to all the space, including all places such as east, south, west, and north, which is boundless.

"Zeus" refers to the fact that all time, including the past, the present, the day, the night, etc., has no beginning and no end.

However, the concept is such that no one dares to be sure......

Throughout the ages, the Chinese people have put forward the theory of covering the sky, the theory of Xuanye and the theory of Hun Tian.

In the seventh century BC, the Babylonians believed that the heavens and the earth were arched, that the earth was surrounded by the sea, and that in its center was a high mountain.

The ancient Egyptians imagined the universe as a big box with the sky as the lid and the earth as the bottom, with the Nile River in the center of the earth.

The ancient Jews believed that the earth was the center of the universe, surrounded by a circle of planets, and beyond that, the rest of the celestial bodies were scattered.

There is a stationary celestial sphere, and within it, the planets are in their own places, and they are constantly rotating.

It was the ancient Greeks who first recognized that the earth was spherical.

In the sixth century B.C., Pythagoras started from the concept of aesthetics, believing that the most beautiful of all three-dimensional figures is the spherical shape.

It is asserted that both the celestial bodies and the earth are approximately spherical.

At this time, after hearing Qingji think that the earth was a spherical shape, Mueller couldn't help but look excited and said, "Your Excellency King Wu!"

"Your concept of the world is exactly the same as that of Pythagoras, the contemptible teacher!"

"It's a contemptible and stupid, I didn't expect His Excellency King Wu to be a wise man!"

Hearing this, Qingji laughed at it, and asked curiously, "Your mentor is Pythagoras?"

"Exactly!"

After knowing that Müller's master was Pythagoras, Qingji couldn't help but light up.

Who is this Pythagoras?

He was an ancient Greek mathematician and philosopher, who was intelligent and studious since childhood, and studied geometry, natural sciences and philosophy under famous teachers.

Because of his yearning for the wisdom of the East, Pythagoras traveled through thousands of rivers and mountains, and traveled to Babylon and Egypt, two ancient civilizations with extremely high cultural standards in the world at that time, and absorbed the culture of Mesopotamian civilization......

Anyone who has studied algebra or geometry will hear the Pythagorean theorem.

This well-known theorem has a wide range of applications in many branches of mathematics, architecture, and surveying.

He also had the theory that the Earth revolves along a spherical surface around a "central fire" at a fixed point in space, and a "planet on the other side" balances it.

This "central fire" is the altar of the universe, something that man can never see.

The distance between these ten celestial bodies and the central fire, the intervals between the syllables, have the same proportional relationship to ensure the harmony of the planets, so that the music of the celestial bodies is played......

In cosmology, Pythagoras combined the school of Miletus with his own theory of numbers.

He believed that there were many, but finite, worlds, and insisted that the earth was round, but he abandoned the geocentric theory of the Miletus school.

Overall, Pythagoras was a very good character.

In mathematics, philosophy, physics, astronomy, music, etc., he has extremely high achievements!

As a disciple of Pythagoras, where could Mill go?

"Mr. Muller, would you like to stay in Jinling? The widow is willing to worship Mr. as a guest secretary, write books and speak in the country of Wu, and even start a sect!"

"This ......"

In the face of the olive branch thrown by Qingji, Muller seemed a little hesitant.

Soon after, Muller gave a chest salute to Qingji, and said slowly: "Your Excellency the King of Wu, I don't hide it, the contemptible people are happy with the academic atmosphere of Wu and the achievements of Wu in all aspects, but it is just ......."

"How can Your Excellency King Wu be convinced of the Earth's Centrism? If His Excellency King Wu can answer this question of the contemptible people, and solve the doubts, the contemptible people should stay in the country of Wu!"

「……」

This made Qingji a little slappy.

However, it is not an answer to Mill's academic question.

Geocentrism (or Tiandong theory) is a theory that the ancients believed that the earth is the center of the universe and is stationary, while other planets orbit the earth.

The origin of geocentrism is very early, initially formed by the Miletus school, and then proposed by the ancient Greek scholar Eudox, refined by Aristotle, and further developed into "geocentrism" by Ptolemy......