For this reason, Qin Emperor Ying Zheng did not hesitate to make up for modern scientific and technological knowledge. In ancient times, astrology was a mysterious thing. It was a secret book that could communicate with gods. But now it is an ordinary astronomy that junior high school students can learn.

Knowledge!

If Qin Emperor Ying Zheng naturally gained a treasure, he wandered in the ocean of knowledge. If it were put in modern times, he would definitely be a top student, and he was also a scholarship winner in various major subjects. Therefore, Qin Emperor Ying Zheng

Begin to recall relevant astronomical knowledge about the zodiac.

In the universe, as a planet in the solar system, the earth is constantly moving. Its movement is complex, but the most basic movement is the rotation and rotation of the earth. The rotation of the earth is the rotation of the earth itself from west to east about the axis of rotation.

.The axis of the earth's rotation is referred to as the axis of the earth. The axis of the earth is assumed, but when the earth rotates, it seems that this axis exists. The plane passing through the center of the earth is perpendicular to the axis of the earth is called the equatorial plane, and the large circle that is separated from the surface of the earth is called the equator

The equator divides the earth into the southern hemisphere and the northern hemisphere. The earth's axis intersects with the earth's surface through the center of the earth at two points. Among them, the intersection point located at the northern hemisphere is called the North Pole, and the intersection point located at the southern hemisphere is called the South Pole. While the earth rotates around the axis, it also revolves around the sun.

Revolve west to east. The orbit of the earth's orbit is an ellipse close to a perfect circle. The plane formed by this ellipse is called the orbit plane, also known as the ecliptic plane.

In the solar system, the orbital plane of the earth is the ecliptic, so the inclination angle of the earth's axis is particularly called the yellow-red intersection angle. The earth rotates around the axis and rotates around the sun on the other side. In this process, the earth's axis does not have the orbital plane (ecliptic plane) that rotates (ecliptic plane)

) is perpendicular, but inclined, with an angle of 66°34'. The inclination direction of the ground axis always remains unchanged (translation) in space, resulting in the equatorial plane and the ecliptic plane not parallel to the ecliptic plane, and are inclined, with its angle of

It is the residual angle of 66°34′, that is, 23°26′. This angle is called the yellow-red intersection angle. The inclination and inclination direction of the earth axis remain unchanged, which also leads to different tendencies of the earth axis towards the sun, causing the direct sunlight on the earth to radiate.

Moving back and forth between 23°26' north latitude and 23°26' south latitude. The movement period is one year. This causes seasonal differences between the noon sun height and the length of day and night in various parts of the earth, thus forming four seasons.

Simply put, the earth revolves around the sun a year. We see it as the sun moving 365 or 366 times in the sky a year. The route of the sun moving is called the eclipse - it is a large circle assumptioned on the celestial sphere, that is,

The projection of Earth's orbit on the celestial sphere. The ecliptic and equatorial planes intersect at the vernal and autumnal equinoxes.

Given the complexity of motion changes, some astronomy work also need to use the strict definition of the eclipse: at any moment, the orbital plane that only considers long-term movement is called the instantaneous average orbital plane, and the large circle that intersects the celestial sphere is called the eclipse.

.From the center of the earth, the eclipse is very close to the sun's annual path in the stars. Only by using precise astronomical instruments can we detect the difference between the eclipse and the sun's annual path. The eclipse is the base circle of the eclipse coordinate system on the celestial sphere.

In the ecliptic coordinate system, the celestial body's elliptic longitude is measured eastward from the vernal equinox point, with the northern yellow latitude being positive and the southern yellow latitude being negative. The corresponding celestial poles of the south and the northern yellow poles are 23 degrees and 26 minutes. Due to the earth's revolution, the earth's reciprocity is positive.

Perturbed by the moon and other planets, the Earth's orbit is not a strict plane, that is, irregular and continuous changes occur in space, including multiple short-period and a slow long-term motion.

Short-period motion can be eliminated by averaging within a certain period of time. The orbital plane that eliminates periodic motion is called the instantaneous average orbital plane.

The strict definition of the eclipse is: the large circle where the instantaneous average orbital plane of the center of mass revolves around the sun and the celestial sphere intersects.

The ecliptic is another visible path of the sun on the celestial sphere during the year. It seems that the path of its movement between stars is obviously the path of the planets passing through every year. To be more explicit, it is a spherical surface (

The intersection of the celestial sphere and the ecliptic plane; in terms of geometry, it is the average orbital plane containing the earth orbits around the sun. The ecliptic plane should be a stable and unchanging ecliptic plane, which is the plane that is vertical to the sum of the angular momentum of all planetary orbits.

Jupiter should be the main influencer. The ecliptic plane and the unchanging ecliptic are inclined by about 1.5°. In fact, it can be simply understood as the plane where the earth's revolution is located. The twenty-eight constellations are called the coordinates of the stars of the ecliptic. This is how it is understood

It looks more vivid.

Qin Huang Ying Zheng wanted to use the zodiac to determine the position of other stars, which is theoretically feasible, but it is difficult to actually operate, because the zodiac does not exist in essence, and the so-called zodiac path is just people.

Observing the fictional routes after the movement of celestial bodies, the movement trajectory of the eight major planets in the solar system is a property.

In itself, there is no path, but people subsequently simulate a fictional path that is convenient to observe based on their activity route. To accurately locate these fictional things, there is a substantial thing as a reference.

The earth naturally became the most ideal reference in Qin Emperor Ying Zheng's mind, and solved all the troubles of summoning the Zhoutian Formation. Qin Emperor Ying Zheng showed a long-lost smile on his face, and then Qin Emperor Ying Zheng stopped and was looking for the second.

The four-symbol formation transformed by the eighteen constellations.

Immediately afterwards, his aura continued to rise and he regained his domineering demeanor, looking down on the world. He spoke slowly:

I am striving for the remaining strength of the six generations, vigorously revitalize the world, swallowing two weeks and destroying the princes, taking the supreme rule and controlling the Liuhe, holding the knock and whipping the world, and shaking the world. I took the land of Baiyue in the south and thought it was Guilin and Xiangjun.

; The king of Baiyue bowed his head and tied his neck and ordered his subordinates to order his subordinates. He then ordered Meng Tian to build the Great Wall in the north and guard the fences, but the Huns were more than 700 miles away. The Hu people did not dare to go south and shed horses, and the soldiers did not dare to bend their bows and repay their grievances.

You are just a rat who dares to show your true face, who will give you the courage to threaten me!"

This statement caused Li Tong to laugh loudly.

"Ha~Ha~ Everyone says that a phoenix with hair falls is not as good as a chicken. Ying Zheng, are you stupid in your brain by electricity? Still think that you are the First Emperor who is powerful in the world? Save it, you are dead! Everyone is a ghost,

How noble can you be more noble than me? Don't be there, put on the stinking airs of the First Emperor and tell the truth. When you first talked about your achievements, I was really shocked by you, but I heard a lot.
Chapter completed!