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It is to generate a geostrophic deflection force, with the northern hemisphere shifting to the right and the southern hemisphere shifting to the left. In addition, the geostrophic deflection force is not a force, but has the effect of changing direction.
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RevolutionIt is the gravitational pull of the sun that causes the earth to revolve around the sun, and the centrifugal force of the revolution is balanced with the gravitational pull of the sun, so that the earth does not fall on the sun and burn up. Just as the rotation of the earth has its own unique regularity, the rotation of the earth due to the action of the sun's gravitational field and rotation also has its own laws.
The rotation of the earth follows the laws of the earth's orbit, the earth's orbital plane, the yellow-red angle, the period of the earth's revolution, the speed of the earth's revolution and the effect of the earth's revolution.
Rotation: All celestial bodies in the universe have a rotation, and it would be very strange if the earth did not rotate. This has to do with the formation of celestial bodies.
The Earth rotates from west to east on its axis of rotation, rotating counterclockwise from the North Pole and clockwise from the South Pole. The Earth's axis of rotation is angled to the ecliptic plane, perpendicular to the equatorial plane.
The basic process of the formation of celestial bodies is the contraction of gravity. Since it is impossible for the matter before the contraction to be absolutely free of motion, and the sum of these motions with respect to the center of the contraction cannot be exactly equal to zero. Since the angular momentum is conserved, the total angular momentum of the final formed object cannot be exactly zero, so it must have a rotation, even black holes and neutron stars.
The reason why the moon rotates is the same as the revolution period is because the tidal forces of the earth have a great influence on the moon, forming the so-called tidal lock. However, the tidal force of the sun on the earth is not large enough to tidally lock the earth, so the rotation of the earth is relatively arbitrary.
The solar system is formed by the contraction of a large mass of gas under the action of gravity, and in the process of contraction, due to the conservation of angular momentum, a rotating gas disk is formed, the center of the disk forms the sun, and the gas outside the disk gradually forms the planets in the solar system, and each planet is formed by a local rotating gas vortex, and the angular momentum of the vortex becomes the angular momentum of the planet, of course, the axis of rotation of the planet is perpendicular to the original rotating gas disk.
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(1) The autobiography of the earth produces the phenomenon of day and night. The hemisphere facing the sun is day, and the hemisphere facing the sun is night.
2) Due to the rotation of the earth, there are different places on the earth at different longitudes; Longitude is every 15 degrees, and local time is one hour apart.
3) The direction of the horizontal motion of the object is biased. It is biased to the right in the northern hemisphere and to the left in the southern hemisphere.
4) 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.
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The rotation of the earth is an important form of motion of the earth, and it is of great significance!
One. Day and night alternate.
Causes: The Earth does not emit light and is not transparent and the rotation of the Earth.
2.Period: 1 solar day, i.e. 24 hours.
3.The morning and dusk lines are generated.
Two. Local time and district time.
The concept of local time: the local meridian plane is used as the starting plane, and the time determined by the celestial body at any time is called the local time of the place.
Meaning of time zone: A time zone refers to a region with the same time regime.
Three. Period boundaries.
Concept: Internationally, the 180° meridian between the east and west twelve districts is regarded as the international date line, referred to as the date line.
In fact, the rotation of the earth also causes objects moving horizontally in any direction on the earth to deviate from the initial direction of their motion.
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The rotation of the Earth. There will be an invisible force, and the first lease of the tung is the geostrophic deflection force.
The force acting on the moving air due to the rotation of the earth is also known as the Coriolis force.
It is only produced when the object has motion relative to the ground. When the object is at rest, it is not affected by the geostrophic deflection force. Its direction is perpendicular to the direction of the object's motion, and its magnitude is proportional to the speed of the wind and the sine of the latitude in which it is located.
It can only change the direction of the object's motion, not the rate of the object's motion. in the Northern Hemisphere.
It points to the right of the object's direction of motion, deflecting the object to the right of its original direction of motion; In the Southern Hemisphere, the opposite is true, deflecting the object to the left of its original direction of motion. With the same wind speed, it increases with latitude. The geostrophic deflection force at the equator is equal to zero; At the poles, the geostrophic deflection force is greatest.
As a result of this, the right bank of rivers in the Northern Hemisphere is washed away by flowing water more than the left bank, so the right bank tends to be slightly steeper than the left bank. Therefore, the effect of the rotation of the earth can also be seen in life, and everyone should carefully observe the details of life in life.
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The Earth has been alternating day and night since **1.
2. Horizontally moving volt-sliding objects are subjected to the deflection force of the rotation of the earth.
The role of 3 makes different places on the earth at different degrees of longitude have different local time, and the earth revolves around the earth without bila:
1 produced throughout the year.
2 Leads to the maximum extent of the disappearance of the phenomenon of day/night.
The Arctic and Antarctic Circles are divided into five bands.
Don't simply look at things as they look!
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