How can you use a globe to see the length of day and night and the changes of the seasons?

This is because the central axis of the earth's rotation, that is, the earth's axis and the orbit of the revolution, are not perpendicular to the orbit of the earth's rotation, and there is an angle, that is, similar to the angle of the earth's inclination on a globe. When the revolution is active, the position of the Earth in close proximity to the Sun gradually changes, on one side the Northern Hemisphere is close to the Sun, then the other side is the Southern Hemisphere. (You can move yourself to think of yourself as the sun, move the globe from left to right, and observe it.)

This is the return movement of the point of direct fire. So the length of day and night will change. Rotation is mainly associated with the alternation of day and night.

Because there is a certain inclination on the Earth's axis, which is fixed (let's just think that there is actually a slight oscillation), the position of the Sun directly on the Earth changes as the Earth revolves around the Sun. When the earth rotates to the tilt of the earth's axis and tends to the sun, the sun shines directly to the Tropic of Cancer of the earth, which is the summer of the northern hemisphere, with the longest sunshine time and the shortest night time; When the Earth rotates to the tilt of the Earth's axis away from the Sun, the Sun shines directly to the Tropic of Capricorn of the Earth, which is the winter in the Northern Hemisphere, with the shortest sunshine hours and the longest night hours.

This is the effect of the Earth's revolution on the length of day and night and the change of seasons.

The earth's orbital motion causes the direct sun's direct point to make periodic reciprocating motion between the Tropic of Cancer on the earth's surface, thus forming the noon solar height and day length that change with latitude and season, forming five belts and four seasons.

Because of the existence of the earth's yellow and red angles, there will be a morning and dusk line, and the morning and dusk circles will have an angle with the earth's axis, and with the rotation of the earth, the phenomenon of day and night will occur, and the four seasons will change, that is, due to the north-south movement of the direct point of the sun, the change of the sun's altitude angle and the length of day and night, you upstairs have not analyzed day and night.

1. The rotation of the earth takes 1 day, that is, the replacement of day and night.

2. The Moon's Male ** It takes 1 month for the Moon to revolve around the Earth, that is, the replacement of the Moon in a cloudy and sunny period.

3. The Earth's Male ** It takes 1 year for the Earth to revolve around the sun, that is, the replacement of the four seasons.

The four seasons change due to the rotation of the sun, the position of the direct point of the sun, and the length of day and night.

There will be no polar day and night, no direct sunlight, not high latitude, and obvious climate change.

Because of the rotation of the earth, the latitude is the lowest.

Because of the movement of the point of direct sunlight.

The earth rotates one round, day and night cycle once, forming a day and night, due to the existence of the yellow and red angles, except for the autumn equinox and spring equinox day on the equator, the day arc and the night arc are not equal in length, when the night arc is greater than the day arc, the night is longer and the day is shorter. Conversely, as the earth rotates, the morning and dusk circles change obliquely and squarely, and the arcs of day and night in the same latitude also disappear from each other, resulting in the length of day and night constantly changing.

The Earth's axis of rotation is tilted, which results in an angle between the Earth's axis of rotation and its orbit, resulting in seasonal changes and differences in the length of day and night as it revolves around the Sun.

The earth's four seasons and the change in the length of day and night are caused by the earth's orbital movement.

During the earth's rotational movement, the length of day and night and the height of the sun at noon changed with latitude and seasonal dust as the sun moved at the position of the elimination point of the direct sun.

1. The influence of direct sunlight on the length of day and night, taking the solar terms of the northern hemisphere as an example, has the following changes:

1. The direct point of the sun is at the equator, which is the spring and autumn equinoxes, and the northern hemisphere, the southern hemisphere, the Arctic Circle, and the Antarctic Circle are all equal in length of day and night.

2. The direct point of the sun is at the Tropic of Capricorn, which is the summer solstice day in the northern hemisphere, with the longest day and the shortest night in the northern hemisphere; The Southern Hemisphere has the longest nights and shortest days; Polar day within the Arctic Circle; Polar night in the Antarctic Circle.

3. The direct point of the sun is at the Tropic of Capricorn, which is the summer solstice day in the northern hemisphere, with the shortest day and the longest night in the northern hemisphere; The Southern Hemisphere has the longest days and shortest nights; Polar night in the Arctic Circle, polar day in the Antarctic Circle.

2. The influence of the movement of the direct point of the sun on the length of day and night has the following changes:

1. Spring equinox to summer solstice, winter solstice to spring equinox of the following year: the direct point of the sun moves northward, the days in the northern hemisphere are getting longer and longer, and the days in the southern hemisphere are getting shorter and shorter.

2. Summer solstice to winter solstice: the direct point of the sun moves southward, the days in the northern hemisphere are getting shorter and shorter, and the days in the southern hemisphere are getting longer and longer.

In the summer half of the year, the sun shines directly on the northern hemisphere, and the days are longer and the nights are shorter at all latitudes in the northern hemisphere. On the summer solstice, the days in the Northern Hemisphere are the longest and the nights are shortest, and the polar day phenomenon occurs in the Arctic Circle and the areas north of it. In the winter half of the year, the sun shines directly on the southern hemisphere, and the days are short and the nights are longer at each latitude in the northern hemisphere, and the higher the latitude, the shorter the days and the longer the nights; On the winter solstice, the Northern Hemisphere has the shortest day and longest night, and the polar night phenomenon occurs in the Arctic Circle and the areas north of it. On the day of the spring and autumn equinoxes, the sun shines directly on the equator, and the global day and night are of equal length, which is equal to 12 hours.

The situation is reversed in the southern hemisphere.

This is the knowledge of the first chapter of geography in the first year of high school, which is simply as follows: according to the seasons, the days are longer and the nights are shorter in summer (Northern Hemisphere);

Winter (Northern Hemisphere): short days and long nights;

Spring and autumn (global) day and night are equally divided.

By latitude: (for example, in the Northern Hemisphere).

In the summer half of the year, the days are longer than the nights at each latitude, and the higher the latitude, the longer the days and the shorter the nights.

In the winter half of the year, the day length is smaller than the night length at each latitude, and the higher the latitude, the shorter the day and the longer the night.

The day of the vernal and autumnal equinoxes equinoxes equinoxes are equinoxes globally.