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Now imagine that the globe is our earth. Place the globe on a horizontal table, and the plane of the equatorial circle on the globe is called"Equatorial plane"(i.e., the plane of rotation of the Earth), and the table top is called"Ecliptic plane"(i.e., the earth's orbital plane), the angle between the equatorial plane and the ecliptic plane is 23 degrees 26 minutes (this value is also the latitude of the two tropic of cancer lines on the earth).Because that's what the earth is in the universe"Posture"moving, so the globe imitates the earth and makes it oblique.
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While the earth rotates along the earth's axis, it also rotates around the sun, and there is an angle between the plane of rotation (equatorial plane) and the plane of rotation (ecliptic plane), so that when the earth rotates, the direct point of the sun will not always stop at the equator line, but move back and forth between the Tropic of Cancer (north and south latitudes), so that the earth's four seasons are formed. When the direct point hits the Tropic of Cancer on June 22 (summer solstice) and moves from the Tropic of Cancer to the equator, autumn is autumn in the northern hemisphere, spring is spring in the southern hemisphere, and on December 22 (winter solstice), it is directly at the Tropic of Capricorn.
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To put it simply: it is the angle of yellow and red, and the oblique axis is actually the position of the earth in the celestial body, that is to say, the earth is not perpendicular to the sun, so there are 4 seasons, and you can see the color map of the sun and the earth in your atlas.
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The Earth's axis is the central axis around which the Earth's rotation revolves.
The Earth's axis is inclined because of the presence of yellow-red angles.
Due to the existence of the yellow-red angle and the rotation of the earth, the four seasons and five zones of the earth are produced.
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It is not the oblique axis that causes the four distinct seasons, the plane of the earth's revolution can also be said to be the equatorial plane, and the oblique axis is perpendicular to the equatorial plane, which is the line connecting the north and south poles. Specifically, it has little practical value.
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The oblique axis on the globe is tilted relative to the sun. This also causes the earth's seasons to change.
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The rotation of the Earth revolves around the central axis, tilted. The reason may be the gravitational pull of the moon.
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The oblique axis of the earth is the circle that revolves with respect to the earth, which causes the four seasons to be distinct!
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Illusory, the rotation of the earth revolves around the earth's axis, probably.
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A larger tilt of the Earth's axis will change the time of day for human beings, and it will also affect the polar day and night phenomena in the polar regions and the position of the Tropic of Capricorn.
Scientists say that due to the change in the weight distribution of the earth due to the large **, the earth's rotation speed has changed, and the Chilean ** has caused the earth's axis to move by 3 inches (8 centimeters) and the axis of rotation to shift milliarcseconds (milliarcsecond), thus shortening the human day by microseconds, that is, millionths of a second, although the change is minimal, but the change is permanent.
Similar changes have happened before. In 2004, Indonesia caused the Indian Ocean tsunami, which reduced the daily time by microseconds. In turn, events that lead to an increase in the number of hours per day are also possible.
If the Three Gorges Reservoir were fully filled, it would store 10 trillion gallons (40 cubic kilometers) of water, and the weight would increase by microseconds per day.
The root of precession is the precession of the earth's axis:
The precession of the earth's axis has been confirmed by thousands of years of astronomical observations. Newton was the first to point out the cause of the precession of the Earth's axis: mainly due to the attraction of the Sun and the Moon to the uplifted part of the Earth's equator.
Because the Earth is not an ideal sphere, its equatorial part is slightly uplifted (the tides also play a role here) and thus receives the external moment given to it by the Sun and the Moon. Under the gravitational pull of the Sun and the Moon, the Earth's axis of rotation rotates around the vertical axis of the ecliptic plane, drawing a cone in space, and it takes about 26,000 years to orbit it.
Thus, on the celestial sphere, the celestial pole depicts a small circle with a radius of about the yellow pole, i.e., the vernal equinox rotates once every 26,000 years. This long-term movement of the Earth's axis, caused by the Sun and Moon, is known as the precession of the Sun and Moon.
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The increase in the yellow-red angle is caused by the expansion of the range of direct sunlight points.
First, the tropical and cold zones have expanded and the temperate zones have shrunk.
The second is the change in the length of the four seasons, and the changes in the four seasons on the earth are more obvious.
The third is the change in the length of day and night, except for the equator, which has always been divided into day and night, the difference between the length of day and night in other places will be more significant. There will be fewer habitable zones suitable for human habitation.
Climate change: Even if the winters are warmer, the winters will still be cold and snowy at a great distance from the equator. If it gets colder in the summer, the winter snow won't melt as quickly in these high latitudes. Snow accumulates year after year, creating glaciers.
Snow will reflect more solar energy than water and land, resulting in cooler temperatures. This is where a positive feedback mechanism comes into play. A drop in temperature can cause snow to pile up, creating glaciers.
The influence of the yellow-red horn.
The size of the yellow-red corner determines the ratio of the length of day and night in each place. Taking the northern hemisphere on the summer solstice as an example, when the yellow-red angle becomes larger, the days in the northern hemisphere become longer and the nights become shorter (except for areas with polar daylight phenomenon), that is, the gap between day and night widens.
When the yellow-red angle becomes smaller, the days in the northern hemisphere become shorter and the nights become longer (except for areas with polar daylight phenomenon), that is, the gap between day and night narrows, that is, the annual variation of day length in a year increases and decreases with the increase of the yellow-red intersection angle. The height of the sun at noon and the length of day and night change regularly throughout the year, resulting in the change of seasons and affecting the range of the five zones.
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If this is the case, then the earth will no longer be so suitable for human life, and it is very likely that human civilization will cease to exist.
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There will be some small changes.
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If the tilt of the Earth's axis is larger, then the polar day phenomenon will occur more extensively.
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The earth is rotating at the same time, and the axis of rotation and the plane of rotation are not perpendicular to each other, and the angle between the two is, that is, the rotation orbit plane bridge slip and the orbit plane do not coincide, but have some angles, so the earth is tilted.
The earth rotates constantly at all times, and due to the action of inertial centrifugal force, the gravitational acceleration of the ground must be the smallest at the equator and the largest at the poles; The earth cannot be a positive sphere, but must be a spheroid with a slightly bulging equator and slightly less flat poles. The results of gravity measurements and radian measurements confirm the correctness of these views, which also confirms the rotation of the earth from one side.
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Yes, indeed, because it was done in the form of the prototype of the earth, and in fact because it was done according to the elements.
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The tilt of the Earth's axis of rotation is not large, and the tilt of the Earth's axis of rotation is about 10 degrees to 15 degrees, which is modeled after the angle of the Earth.
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The tilt of the earth's axis of rotation is actually not very large, and we usually don't feel it, but it will definitely form a big change over time, and it is also very dangerous.
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Reasons for tilting the Earth's axis: Regardless of the Earth's orbit, its North Pole always points near the North Star, and the South Pole is the same, according to Newton's law of gravitation, there may be a star above or below it that attracts the South or North Pole of the Earth.
The Earth's axis is at the equinox point in spring and autumn, and the Earth's axis and the ecliptic plane are 90 degrees to each other in the direction of orientation, and are perpendicular to a point on the ecliptic plane. The earth's axis is at the time of the second solstice of summer and winter in Ransong Town, and the direction of orientation of the earth's axis and the ecliptic plane is also 90 degrees to each other, and it is inclined to a point of the ecliptic, and the angle of inclination is positive and negative.
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The main reason for the tilt of the Earth's axis is the result of the drift of the continental plates of the Southern Hemisphere on Earth to the Northern Hemisphere.
The Earth's axis refers to the axis of the Earth's rotation, which intersects with the Earth's orbital plane to form the Earth's seasonal variations. The tilt of the Earth's axis refers to the state in which the angle between the Earth's axis and the plane of the Earth's orbit is not perpendicular, but tilted. The reason for the tilt of the Earth's axis is mainly the result of the drift of the continental plates of the Southern Hemisphere on Earth to the Northern Hemisphere.
There are two main reasons for the drift of the continental plate from the Southern Hemisphere to the Northern Hemisphere.
On the one hand, the Earth's crust is made up of multiple continental plates, which are not fixed but drift with the movement of the earth's crust. Due to differences in the shape, density, and thickness of the continental plates, among others, they move at different speeds and directions on Earth. One of the reasons for the drift of the continental plate from the Southern Hemisphere to the Northern Hemisphere is that the tectonic and mechanical processes in the Earth's interior cause the collapse of the Southern Hemisphere to move at a higher speed relative to the Northern Hemisphere.
On the other hand, the earth's crustal movement is also affected by other geological factors, such as the earth's plate tectonics and geological activities, etc. Plate tectonics is a fundamental feature of the Earth's crust that describes the relative position, shape, and movement of different plates on Earth. The second reason for the drift of the Southern Hemisphere continental plate to the northern hemisphere is that the earth's plate tectonics and geological activity circularity cause the Southern Hemisphere continental plate to interact with the plate boundary of the Northern Hemisphere, thus promoting the movement of the Southern Hemisphere continental plate to the northern hemisphere.
The influence of the tilt of the Earth's axis on the Earth's climate and seasons
When the Earth's axis is tilted, the direct angle of the Sun also changes when the Earth's revolution is tilted to different positions. This leads to changes in temperature, sunshine hours, and seasons in different parts of the planet. For example, when the Earth turns to the summer solstice, the Southern Hemisphere is closer to the Sun, and the direct angle of the Sun is larger, which makes the Southern Hemisphere warmer and experiences summer. The Northern Hemisphere, on the other hand, is farther away from the Sun, and the direct angle of the Sun is smaller, making the Northern Hemisphere experience lower temperatures and experience winter.
In addition, the tilt of the Earth's axis also affects the distribution of climate on Earth. Due to the difference in solar radiation between the northern and southern hemispheres, the distribution of tropical, temperate and polar climates is characterized. The tropical climate zone is located near the equator, where solar radiation is direct and intense, with high temperatures and humid climates; The temperate climate zone is located between the tropics and the polar regions, with weak solar radiation and moderate climate temperature. The polar climate zone is located near the polar region where the Earth's axis is tilted, and the sunlight is short and the solar altitude angle is extremely low, and the temperature is extremely low.
In the Earth's Arctic and Antarctic Circles, polar day and night phenomena occur due to the tilt of the Earth's axis. When the Earth turns to the position of the Arctic Circle, the area near the Arctic Circle will continue to be daylight for a period of time, that is, the polar day; When the Earth orbits to the location of the Antarctic Circle, the area near the Antarctic Circle will continue to be dark for a period of time, known as the polar night.
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