What makes the earth rotate around his axis. The land is not moving around ... ✓ disagree

In the fact that the Earth is spinning both around its axis, and around the Sun, our natural shining, there is no doubt about any of the people. This is an absolute and confirmed fact, however, why the earth spins exactly the way it does it? In this question we will understand today.

Why land spins around his axis

Let's start with the very first question, which is in the nature of the independent rotation of our planet.

And the answer to this question, as many other questions about the secrets of our universe, is the sun. It is the impact of sunlight on our planet leads it in motion. If a little more to deepen in this question, it is worth noting that the sun's rays warmes the atmosphere and the planet hydrofrier, which are given in the movement during heating. Such a move and causes the earth to move.

As for the answer to the question why the Earth revolves counterclockwise, and not on it, then there is no such factual confirmation. However, it is worth noting that the majority of bodies in our solar system rotates precisely towards the direction counterclockwise. That is why this condition affected our planet.

In addition, it is important to understand that the Earth rotates counterclockwise only under the condition that the observation will occur from the North Pole. In the case of observations from the Southern Pole, the rotations will occur differently - clockwise.

Why land spins around the sun

As for a more global issue related to the rotation of our planet around its natural shone, we considered it in the most detailed as possible within the framework of the relevant article on our website. However, if you say briefly, the reason for such a rotation is the law of global gravity, which in space acts as on earth. And it lies in the fact that the bodies with a larger mass attract less "sweaty" body. Thus, the Earth is attracted to the Sun and rotates around the star due to its mass, as well as acceleration, moving strictly at the existing orbit.

Why the moon is spinning around the earth

We have also already considered the nature of the rotations of the natural satellite of our planet, and the reason for such a movement has a similar nature - the law of global. The earth, of course, has a more serious mass than the moon. Accordingly, the moon attracts to the ground and produces a movement on its orbit.

The moon accompanies our planet in her big space travel now for several billion years. And she shows us, earthlings, from the century in the century there is always the same in the same lunar landscape. Why do we admire only one side of our satellite? Does the moon rotate around his axis or soars in outer space fixed?

Characteristics of our Space neighbor

In the solar system there are satellites much larger than the moon. Ganymed is a satellite of Jupiter, for example, twice as much as the moon. But she is the largest satellite relative to the maternal planet. Its mass is more than a percent of the earth, and the diameter is about a quarter of the earth. There are no more such proportions in the solar family.

Let's try to answer the question of whether the moon rotates around its axis, looking at the closest to the nearest Space neighbor. According to the theory adopted today, our planet has gained a natural satellite, which has yet become the protoplanetic - not to the end of a cooled, covered with ocean liquid polished lava, as a result of a collision with another planet, smaller in size. Therefore, the chemical compositions of the lunar and earthly soils are slightly different - the heavy kernels of the collied planets merged, because of which the earth breed is richer iron. The moon got the remains of the upper layers of both protoplant, there is more stone.

Li Moon rotates

To be accurate, then the question of whether the moon rotates, not entirely correct. After all, like any satellite in our system, she turns around near the maternal planet and with her spinning around the shone. But the moon is not quite usual.

How much I look at the moon, it is always turned to us with a crater quiet and the sea of \u200b\u200bcalm. "Does the moon rotate around his axis?" - From the century to the century, they asked themselves the question of earthlings. Strictly speaking, if you operate with geometric concepts, the answer depends on the selected coordinate system. Regarding the land, the axial rotation of the moon is really missing.

But from the point of view of the observer located on the line of the Sun-Earth, the axial rotation of the moon will be well noticeable, and one polar turnover to the fraction of a second will be equal to the duration of the orbital.

Interestingly, this phenomenon is not unique in the solar system. Thus, Pluto Haron's satellite always looks at his planet by one side, satellites of Mars are behaving exactly - Dimos and Phobos.

In scientific language, this is called synchronous rotation or tidal capture.

What is a tide?

In order to understand the essence of this phenomenon and confidently answer the question of whether the moon rotates around its own axis, it is necessary to disassemble the essence of tidal phenomena.

Imagine two mountains on the surface of the moon, one of whom "looks" right to earth, the other is in the opposite point of the lunar ball. Obviously, if both mountains were not part of one heavenly body, but rotated around our planet independently, their rotation could not be synchronous, that closer, according to the laws of Newtonian mechanics, should rotate faster. That is why the masses of the lunar ball, located in the opposite directions in the direction of the land, seek to "run away from each other."

How "stopped" the moon

How tidal forces act on this or that celestial body, it is convenient to disassemble on the example of our own planet. After all, we are also rotating around the Moon, or rather the moon and the earth, as it should be in astrophysics, "water dance" around the physical center of the masses.

As a result of the operation of the tidal forces and in the nearest, and in the point most removed from the satellite, the level of water covering the earth is rising. Moreover, the maximum amplitude of the tide-slope can reach 15 or more meters.

Another feature of this phenomenon is that these tidal "hollows" daily envelop the surface of the planet against its rotation, creating friction at points 1 and 2, and thus slowly stop the globe in its rotation.

The impact of the land on the moon is much stronger due to the difference of the masses. And although there is no ocean on the moon, tidal forces are not worse on stone rocks. And the result of their work is obvious.

So does the moon rotate around his axis? The answer is positive. But the rotation is closely connected with the movement around the planet. Tidal forces per millions of years leveled the axial rotation of the moon with orbital.

And what about the earth?

Astrophysics argue that immediately after a large clash, which caused the formation of the Moon, the rotation of our planet was much more than now. The day lasted no more than five hours. But as a result of friction of tidal waves about the bottom of the ocean, year after year, the millennium for the millennium, the rotation slowed down, and the current day lasts for 24 hours.

On average, each age adds in our day to 20-40 seconds. Scientists suggest that in a couple of billions of years our planet will look at the moon as well as the moon on it, that is, one side. True, most likely, it will not happen, since even earlier the sun, turning into the Red Giant, "swallow" and the land, and its faithful satellite - the moon.

By the way, tidal forces give earthlings not only the increase and decrease in the world's ocean in the area of \u200b\u200bthe equator. Impacting the masses of metals in the earth's core, deforming the hot center of our planet, the moon helps maintain it in a liquid state. And thanks to the active liquid core, our planet has its own magnetic field that protects the entire biosphere from killer solar wind and deadly cosmic rays.

The theory of the world, as a geocentric system, in the old days has repeatedly been criticized and doubts. It is known that Galileo Galileo worked on the proof of this theory. It belongs to him who entered the story of the phrase: "And she still turns!". But nevertheless, he did not manage to prove it, as many think, and Nikolai Copernicus, who in 1543 wrote a treatise on the movement of heavenly bodies around the sun. Surprisingly, but despite all these evidence, about the circular progress of the earth around the huge shone, in theory there are still open questions about the reasons that encourage it to this movement.

Causes of Movement

The Middle Ages behind, when people considered our planet still, and no one disputes her movement. But the reasons for which the Earth goes to the journey around the Sun is unknown. Three theories put forward:

• inert rotation;
• magnetic fields;
• the impact of solar radiation.

There are others, but they do not stand criticism. Interestingly, the question: "In which direction the earth rotates around the huge heavenly shine?", Also not correctly correct. The answer to it is obtained, but it is accurate only relative to the generally accepted landmark.

The sun is a huge star, around which life focuses in our planetary system. All these planets make a move around the Sun in their orbits. Land moves through the third orbit. Studying the question: "In which direction the land is rotating in orbit?", Scientists have made a lot of discoveries. They realized that the orbit itself is not ideal, so our green planet is from the sun at different points on different distances from each other. Therefore, the average value was calculated: 149,600,000 km.

The closer to the land to the Sun January 3, and then - July 4th. Concepts are associated with these phenomena: the smallest and most time day per year, in relation to the night. Studying the same question: "In which direction the land is rotating in its solar orbit?", Scientists have made another conclusion: the process of circular running occurs in orbit, and around its own invisible rod (axis). By making the opening of these two rotations, scientists wondered not only the reasons for such phenomena, but also about the form of the orbit, as well as the speed of rotation.

How did scientists determined which way the earth rotates around the sun in the planetary system?

The orbital painting of the planet Earth described the German astronomer and mathematician in its fundamental work "New Astronomy" he calls an elliptical orbit.

All objects on the surface of the Earth rotate together with it using the generally accepted descriptions of the planetary picture of the solar system. It can be said that, watching the North of the North from Cosmos, to the question: "Which way the earth rotates around the central shine?", The answer will be as follows: "from west to east."

Compare with the movements of the arrow in the clock - it is against its stroke. This point was accepted by a relatively polar star. The same man will see the same man on the surface of the earth from the Northern Hemisphere. Representing yourself on a bowl moving around a fixed shone, he will see his rotation to the right left. This is equivalent to the go against the clock arrow or from west to the east.

Earth axis

All this applies to the answer to the question: "What direction does the earth rotate around his axis?" - In the opposite course of the arrows of the clock. But if you imagine yourself by an observer in the southern hemisphere, the picture will look different - on the contrary. But, realizing that there are no concepts in the space of the West and the East, scientists pushed out of the earth's axis and the polar star to which the axis was directed. This determined the generally accepted answer to the question: "Which way the earth rotates around his axis and around the center of the Solar System?". Accordingly, the sun is shown in the morning due to the horizon from the eastern direction, and hides from our eyes in the West. It is interesting that many compare terrestrial turns around their own invisible axial rod with a spin of a wolf. But at the same time the earth's axis is not visible and somewhat inclined, and not vertical. All this is reflected on the shape of the globe and elliptical orbit.

Star and sunny day

In addition to the answer to the question: "In which direction the earth rotates clockwise or against the arrows of the clock?", Scientists calculated the turnover time around their invisible axis. It is 24 hours. Interestingly, this is just an approximate number. In fact, the total turnover is 4 minutes less (23 hours 56 min. 4.1 sec.). This is the so-called star day. We also consider the day for the sunny day: 24 hours, as the land on its planetary orbit every day is needed even additional 4 minutes to return to its place.

\u003e\u003e How long lasts the day on other planets

Rotation of land - Description for children: why the planet rotate around the axis, the direction of rotation of the earth, the birth of the solar system, the effect of the sun and the explosion.

Let's tell about why the Earth rotates on the language accessible to children. This information will be useful for children and their parents. Rotation of land It seems the usual and completely familiar thing, although not everyone can explain why the planets rotate and do not stop and how it affects the Earth and the worlds of the solar system.

The fact that the Earth rotates is not a secret even for the smallest. In the end, it is shown in every feature film or on the video taken by astronauts. However, she does it so slowly that we do not notice it. It is interesting not only that it rotates counterclockwise, but also the fact that almost all the planets repeat this direction.

To explain the childrenWhy the Earth rotates, you need to turn off time and see how the solar system was created. Parents or teachers at school They may begin with the fact that in deep outer space there are clouds of dust and gas, which are combined in the nebula. This is the place where the stars are born. When they rotate, the dust is assembled, and the pressure is growing. Best visual explanation for children - Shake the jar with soda: due to pressure, it will splash when opening the fountain. But the nebula in this case forms the stars. It is also believed that this should happen some event, for example, an explosion of another star. This will lead to the rotation of the star, as well as dust and dirt. And here the most important thing is that the direction of rotation will repeat the direction of the explosion.

Childrencan imagine how much dust is formed there. It begins to crash into each other, turning into asteroids, which are attracted by the strength of the severity of the stars. All this process of progress and destruction can last billions of years. During this time, there are huge pieces rotating in one direction.

Remember the star that was created? It is she who attracts everything and makes it face. They accumulate the material until they turn into planets. Almost in all cases, even strikes do not change the initial direction of rotation, since the explosion was very strong. Star, located in the center of all this chaos, becomes the future sun. But on it explanation for children does not end.

Planets continue to rotate around the future of the Sun, but the whole process is still deprived of stability. During the leveling, they can continue to face, turning into even larger planets, and the separated debris becomes satellites. The strength of the sun will affect another billion years until the planets calm down and will not find a permanent place.

If we traced this process on a spacecraft, we noticed that the planets still did not change the direction of rotation. Some speed have more, others have less. We also note a lot of satellites that can repeat the direction of rotation of the planet, or do it in the opposite.

If you go explain the childrenWhy the Earth rotates, then the whole thing in the explosion, which created our sun and the entire system. He was so strong that he forces everything to rotate until now. We also add the fact that there is an axis of rotation of the Earth, moving the planet around its own axis. Now the rotation of the Earth will not be a mystery for you. But on our site you will learn about the solar system and its planets are much more. Be sure to use the 3D model to observe the rotation in real time. Or look at the online broadcast from the MKS cameras (orbital station).

Sharotrival, however, is not an ideal ball. Due to the rotation of the planet, it is a little flattened by the poles, such a figure is called a spheroid or geoid - "such land".

The land is huge, its size is difficult to imagine. The main parameters of our planet are as follows:

• Diameter - 12570 km
• Equator Length - 40076 km
• Length of any meridian - 40008 km
• The total surface area of \u200b\u200bthe Earth is 510 million km2
• Pole radius - 6357 km
• Equator radius - 6378 km

Earth simultaneously rotates around the Sun and around its own axis.

The Earth rotates around the inclined axis from the west to the east. Half of the globe is illuminated by the sun, there at this time day, the second half is in the shade, there is night. Thanks to the rotation of the Earth there is a change of day and night. One turn around his axis earth is done in 24 hours a day.

Because of the rotation, the deviation of moving streams (rivers, winds) in the northern hemisphere is right, and in the southern one - left.

Rotation of the Earth around the Sun

Around the Sun, the Earth rotates around a circular orbit, the full turn is performed in 1 year. The earth's axis is not vertical, it is tilted at an angle of 66.5 ° to orbit, this angle remains constant during the entire rotation. The main consequence of this rotation is the change of seasons.

Consider the extreme points of rotation of the Earth around the Sun.

• December 22 - winter solstice. Closest to the sun (the Sun is in Zenith) at this moment there is a southern tropic - therefore in the South Hemisphere Summer, in North - Winter. Nights in the southern hemisphere are short, on the southern polar circle on December 22, the day lasts 24 hours, the night does not occur. In the northern hemisphere, everything, on the contrary, on the northern polar circle the night lasts 24 hours.
• 22nd of June - Day of the summer solstice. The next to the sun is the Northern Tropic, in the Northern Hemisphere Summer, in South - Winter. On the southern polar circle, the night lasts 24 hours, and on the north night does not occur at all.
• March 21, September 23 - The days of spring and autumn equinels are closest to the Sun is the equator, the day is equal to the night in both hemispheres.