What phenomenon does the rotation of the earth produce, the phenomenon of the rotation of the earth

The rotation of the Earth creates a diurnal cycle and a time difference. The earth rotates from west to east, and the time of one rotation is 24 hours.

The time difference is that when the earth's rotation produces the place, the time in the east is earlier than the time in the west, and every 15 degrees of longitude, the local time difference is one hour. The rotation of the earth produces the four seasons and the five zones.

The Earth rotates from west to east on its axis of rotation, rotating counterclockwise from the North Pole and clockwise from the South Pole. Various theories about the rotation of the Earth are still hypotheses. The sun rises in the east and sets in the west due to the rotation of the earth; Even if the earth does not rotate, there will be day and night.

The phenomena of the Earth's rotation are as follows:

1. The phenomenon of day and night change, towards the hemisphere of the sun, during the day, with the hemisphere of the sun on its back, is night.

2. Various motion rotation phenomena caused by geostrophic deflection forces in the northern and southern hemispheres.

3. When there are different places in different longitudes on the earth; Longitude is every 15 degrees, and local time is one hour apart.

4. The phenomenon of time difference in the eastern and western regions, and the phenomenon of biological work and rest.

5. Influence on the shape of the earth. The inertial centrifugal force generated by the rotation of the earth causes the earth to gradually expand from two stages to the equator, becoming a slightly flattened spheroid.

Introduction to Earth Rotation: Earth rotation refers to the geographical phenomenon of the Earth rotating from west to east around the Earth's axis.

The rotation of the earth is an important form of movement of the earth, which has the meaning of day and night, the rising and setting of the sun, moon and stars in the east and the time difference in different places, and its rotation takes 23 hours and 56 minutes, and the rotation cycle will increase or decrease by 3 thousandths to 4 thousandths of a second every 10 years.

On average, the time taken by the Earth to make one revolution increases by about a second every century. As a rough calculation, 400 million years ago, the Earth rotated in just 22 hours.

In fact, the ancient Greek Philolaus, Hesittas and others had already put forward the conjecture of the rotation of the earth, and in the book "Corpse" in the Warring States Period of China, there was a discussion of "the left of the heavens, the right of the earth", and the confirmation of this natural phenomenon and its acceptance by people was after the Copernican heliocentric theory was put forward in 1543.

1. The rotation of the earth produces the phenomenon of day and night.

Since the Earth is a sphere that does not emit light and is not transparent, the Sun can only illuminate half of the Earth's surface at any one time. Towards the hemisphere of the sun, it is daytime; With the sun on its back, it is night. The dividing line (circle) between the day and night hemispheres is called the morning and dusk line (circle).

Since the earth is constantly rotating, day and night are constantly alternating. The cycle of day and night is not long, and it is the solar day mentioned above. This makes the daytime warming of the ground not too hot, and the night cooling is not too cold, thus ensuring the survival and development of living organisms on the earth.

2. Due to the rotation of the earth, there are different places in different longitudes on the earth; Longitude is every 15°, and local time is one hour apart.

3. The direction of the horizontal motion of the object is biased.

Objects moving horizontally on Earth, regardless of which direction they move, are deflected, to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. These phenomena are the result of the rotation of the Earth.

4. Influence on the shape of the earth.

The inertial centrifugal force generated by the rotation of the Earth's axis causes the Earth to gradually expand from the poles to the equator, becoming the shape of the currently slightly flattened spheroid.