The difference between rotation and revolution, the difference between revolution and rotation

The rotation of the EarthThe difference between revolution and revolution is:

1. Time spent.

The time taken by these two forms of movement of the earth is different. The time taken for rotation is one day, while the time taken for revolution is one year.

2. The center of rotation.

The center of rotation around which rotation and revolution revolve is different. The center of the former's rotation is the Earth's axis.

The center of rotation of the latter is the sun.

People revolve the earth.

The time taken for a revolution is called a year, but strictly speaking, the time taken for a revolution is 365 days, 6 hours, 9 minutes and 9 seconds, not 365 days.

Transfers. This is also one of the forms of motion of the earth, which revolves from west to east around the sun. It produces a form of motion that is influenced by the sun's gravitational field and rotation.

Moreover, it has two cycles of regression year and sidereal year at the time of revolution, of which the return year is also known as the solar year, which refers to the time between the two consecutive passes of the vernal equinox. A sidereal year, on the other hand, is a galaxy.

is the starting point, the time interval between the two consecutive passes of the Sun or the Sun from the Sun or the center of the Earth.

The difference between rotation and revolution is as follows:

1. The central difference in the direction of turning:

The center of the rotation is the Earth's axis, which produces the alternation of day and night instead of day and night, and there is local time, which means that the sunrise time seen in each place is different. The center of the revolution is the sun, which produces changes in the seasons of the year and the length of day and night, especially in our northern hemisphere, where the days are significantly longer than in winter.

2. The difference in the direction and time of turning:

The Earth's rotation is 23 hours, 56 minutes and 4 seconds, and its revolution is 365 days, 6 hours, 9 minutes and 9 seconds. It is precisely because of the rotation of the earth that there are days and nights, and it is precisely because the earth revolves around the sun that there are four seasons for a year.

3. Difference in geographical significance

Geographical significance of the Earth's rotation: day and night cycle, time difference.

The geographical significance of the Earth's revolution: the change of the seasons and the formation of the Earth's five belts.

4. The phenomena produced are different:

The phenomena produced by the rotation of the earth are: the phenomenon of day and night change; various motion rotation phenomena caused by geostrophic deflection forces in the northern and southern hemispheres; The phenomenon of time difference in the eastern and western regions, and the phenomenon of biological work and rest.

The cycle of the Earth's rotation

The direction of the earth's rotation is from west to east, the cycle is one day, that is, 24 hours, and it takes 23 hours, 56 minutes and 4 seconds to rotate accurately, and the revolution is about degrees, which is equivalent to 3 minutes and 56 seconds according to the speed of the earth's rotation, and the time, rotation plus the time used for revolution is 24 hours.

The earth rotates around the sun constantly, which is called the revolution of the earth, and the direction of the earth's revolution is from west to east, and the exact time of one revolution is: 365 days, 6 hours, 9 minutes and 10 seconds.

Difference Between Rotation and Revolution:

Rotation is the rotational motion of the Earth centered on its axis of rotation. Revolution is the orbit of the Earth centered on the Sun. Rotation is the rotation of the earth with the axis of rotation as the center, and one rotation is one day.

Revolution is the orbit of the earth centered on the sun, and one revolution is a year.

1. All theories about the rotation of the earth are still hypotheses. Considering that the cause of the Earth's rotation should be combined with the Earth's revolution, there is no absolutely stationary object in the universe, and a massive celestial body subjected to various external forces must rely on its rotation to maintain its equilibrium in order to maintain its own motion.

Due to the extremely fast speed of motion of small particles, they must also rely on rotation to maintain the balance of their motion. This can refer to the principle of motion of the gyroscope, and the rotating object has a higher tolerance to external forces in motion.

2. The sidereal cycle of the Earth's revolution is the sidereal year. A sidereal year is a cycle in which the Earth orbits the Sun by one revolution with a star or galaxy as a reference. Stars or galaxies are so far away that no matter how the Earth moves around the Sun, the spatial orientation of the Earth's axis can be regarded as unchanging.

During a sidereal year, the center of the Earth departs from a point in the background of the star, as seen from the center of the Sun; From the center of the Earth, the center of the Sun starts from a point on the ecliptic, which is fixed relative to the star, and then returns to the same point on the ecliptic.

Thus, from the geocentric celestial sphere, the length of a sidereal year is the apparent center of the Sun, on the ecliptic, the time interval between two consecutive passes through the same star.

Difference Between Revolution and Rotation:

1. The time taken is different.

First of all, the two forms of movement of the earth take different times. The time taken for rotation is one day, while the time taken for revolution is one year.

2. The center of rotation is different.

Secondly, the center of rotation around which rotation and revolution revolve is different. The center of rotation of the former is the axis of the earth, while the center of rotation of the latter is the sun.

Phenomena resulting from the rotation of the Earth:

The phenomenon of day and night change, the geostrophic deflection force in the northern and southern hemispheres causes various motion rotation phenomena, the time difference phenomenon in the eastern and western regions, and the phenomenon of biological work and rest.

Phenomena arising from the revolution of the Earth:

According to the difference in the height of the sun, it is divided into five zones, northern cold, northern temperature, tropical temperature, southern temperature, and southern cold, and according to the time difference of how much heat is obtained, it is divided into four seasons, spring, summer, autumn, winter, the change of the length of day and night, the change of the position of celestial phenomena, and the phenomenon of biological growth law.

The difference between revolution and self-type brother-based rotation: the time used is different, the center of rotation is different, and the nature is different.

First, the time taken is different.

1. The time used for self-rotation is one day.

2. The time taken for the public transfer is one year.

Second, the center of rotation is different.

1. The center of the rotation is the earth's axis.

2. The center of the revolution is the sun.

Third, the nature is different.

1. Self-rotation refers to the movement of the object to rotate on its own, and the object will rotate along an axis that passes through the object itself, which is called the "axis of rotation". In general, the axis of rotation crosses the center of mass of a celestial body.

The rotation of the Earth is the circular motion of the Earth along an axis that passes through the center of the Earth (the axis of rotation, also called the Earth's axis).

2. Revolution refers to the circular motion of an object along a certain track with another object as the center; The orbit can be circle, ellipse, hyperbola, or parabolic.

The principle of rotation

In three-dimensional space, rotation is represented by the rotation of an object around an axis of rotation. If the axis of rotation of the object is inside the object, the object rotates around itself; This means that the value of its angular momentum is determined by its relative velocity or whether the object is in free motion without force.

Rotation is the motion of a rigid body that maintains a fixed rotation around a point, as opposed to moving. This definition can be applied to both two-dimensional and three-dimensional spaces (flat and spatial). The rotation of three-dimensional space is to rotate by maintaining a fixed line, that is, the rotation of three-dimensional space is about one axis.

This is derived from Euler's theorem. The state of motion of all rigid body rotational motion may be caused by turning, moving, or rotating plus moving.

The above content refers to Encyclopedia - Rotation.

Encyclopedia - Revolution.