The linear speed of rotation of the earth around its axis. Rotation of the earth around the sun

Our star, shot through filters

The rotation of the Sun depends on where the observer measures it from, interested? Spots on the equator take approximately 24.47 Earth days to complete a full revolution around them.

Astronomers call this the sidereal rotation period, which differs from the synodic period in the amount of time it takes for sunspots to rotate around the Sun when observed from Earth.

The speed of rotation decreases as one approaches the poles, so that at the poles the period of rotation around the axis can reach 38 days.

Rotation observations

The movement of the Sun is clearly visible if you observe its spots. All spots move on the surface. This movement is part general movement stars around their axis.

Observations show that it does not rotate like solid, but differentiated.

This means that it moves faster at the equator and slower at the poles. Gas giants: Jupiter and Saturn also have differential rotation.

Astronomers measured the speed of rotation of the Sun from a latitude of 26° from the equator, and found that one revolution around its axis takes 25.38 days. Its axis makes an angle equal to 7 degrees and 15 minutes.

The inner regions and core rotate together as a rigid body. And the outer layers, the convective zone and the photosphere, rotate at different speeds.

The Sun's revolution around the center of the galaxy

Our star and we, together with it, revolve around the center of the galaxy Milky Way. average speed is 828,000 km/h. One revolution takes about 230 million years. The Milky Way is a spiral galaxy. It is believed that it consists of central core, 4 main arms with several short segments.

Since childhood, you have been bombarded with information about the Round Earth, which moves around the Sun, plus itself rotates around its own axis. Drawings, films, atlases, maps, even weather forecasts and film studio logos are made with the Earth ball.

But as soon as you think about it " For what?“At least for a minute, you understand that you zombie. And the Flat Earth is much more obvious, simple and beautiful than the most incredible attempts to make you believe your EARS and not your EYES or FEELINGS.

Do you know why ordinary people like Flat Earth so much?

1. From the window it looks flat all the way to the horizon.
2. The earth feels motionless. In any part of the world. At the Pole and at the Equator.
3. The Sun and Moon appear to be the same size. Although they persistently buzz in your ears that the Moon is 400 times closer and 400 times smaller than the Sun. Ideal " 2 » 400 matches.
4. 99% of photographs from Space are simply created by NASA PHOTOSHOP, or assembled from pieces. Smooth pieces of Flat Earth stretched over a Ball.

Therefore, you don't have to look far to understand why people understand Flat Earth. She is attractive, and you have always felt that Beauty should be simple.

Because it's always

« Brilliant = Simple»

Today is our Final Scene.

We will discuss one more thing that puts an end to the conversation about the Round or Flat Earth. We will discuss how The earth is spinning.

As always, to help us Professor Sharov (PS ) from the official point of view, Professor Wonderful (PZ ) with an original point of view. And you make a choice which explanation you like best.

That is, YOU DECIDE — « Round Earth or not" as a result of voting I will give you 5 easy examples, and you give your ratings.

Play: Star Wars. The flat-earthers strike back."

Scene 3. “Is Planet Earth Spinning?”

Introduction:

Let's check our reality based on 5 examples. I will put a vote after each of the examples so that readers will evaluate the professors' explanations.

Question 1. How does water hold onto the spinning Earth? Examples: washing machine, carousel and Olympian hammers.
Question 2. Like the ashes of moving volcanoes and explosions rise vertically UP. And the smoke from a moving train always goes BACK. A LOT OF PHOTOS.
Question 3. How bombs from an airplane hit the target + flight time of the East-West plane. Flights and SCREENSHOTS.
Question 4. A man's jump from a height of 30 km = "". How they take us for fools.
Question 5.Artillery shooting and

Conclusions.

Introduction.

You : Good afternoon, ladies and gentlemen PS And PZ. We haven’t seen each other for a long time, but I want to ask you so many questions. Today we finally managed to meet, and let's get down to business.

I have questions and I want to find out which explanation is the best, with your help.

PS : With pleasure.

You : Professor Sharov, tell us official version, how the Earth rotates, so that we can brush up on physics and geography.

PS : The earth rotates around its axis from West to East.

The Earth's rotation speed at the equator is 1,666 km/h. Rotation speed at the poles is 0 km/h.

The speed on the Equator can be easily calculated using the formula: length of the Equator / time of a full revolution - 40,000 km / 24 hours. We know that Noon occurs after 24 hours, that is, the Sun is at its zenith 24 hours after the previous zenith, which is considered a complete rotation.

You: OK.

You : What about you, Professor Wonderful?

PZ : The earth does not rotate and you know it very well. Look around you. Do you see winds of 1,666 km/hour? No, you don't.

Do you know why?

Because there is no rotation. Here is the still Lake Victoria on the Equator, between Tanzania, Kenya and Uganda. It is so motionless that in its reflection you can see the sky, mountains and yourself.

Do you think this is possible when there is supposedly wind there? 1,666 km/h? Do you know what speed is? 1,666 km/h? How terrible is this force?

The most powerful level 5 hurricane has an air speed of only 250 km/h.

Do you know what it looks like human face at a speed of 250 km/h? Show?

Hurricane at 250 km/h in face.

From the lips it really can DEFLATE lipstick!

However, on Earth we see the following pictures, where the rotation speed SOOOOOOOOO exceeds 250 km/h, almost 7 times! With this wind, will there be a similar landscape? If you take a chance on money, is this possible?

So it seems to me a little " not true"let's put it mildly when scientists say that the Earth rotates at a speed 1,666 km/h at the Equator, and at a speed of about 950 km/h at latitude Moscow. Moscow is located at a latitude of 55 degrees, between Oslo and Kiev. IN Moscow the rotation speed is 4 times the effect you saw with people's faces above.

PS : I'm surprised to hear this from you, Professor Wonderful that you do not believe official science.

PZ : Science doesn't need FAITH, Professor Sharov. Science needs evidence and facts. If there is no evidence and facts, then such information is called RELIGION. And you know this very well. However, you claim that there is a speed of 1,666 km/h?

PS : Of course have. You don't feel it because the atmosphere rotates with the surface of the Earth. That is, explaining in simple language, the Earth’s atmosphere is glued tightly to the surface, ABOVE which it circles and behaves like the same stone lying ON the Earth.

Stone ON Earth = air ABOVE Earth.

You: Seriously?

In other words, official science chooses the option where The earth rotates with the atmosphere, which is also tightly glued to it?

PS: Yes.

You : I'll know. So my first question is:

Question 1. How does water stay on the spinning Earth?

I am surprised by the fact that PS states: The Earth = Rotates and 70% of the Earth's surface is water." There is a direct contradiction between these two statements.

What's the contradiction?

Look, there's a washing machine.

She has a function water extraction. When the drum begins to rotate very quickly, and the water flies to the sides, passing through the cracks in the drum. Depending on the speed, it is squeezed out different quantities water. At 1000 rpm - maximum effect.

What you see is called centrifugal force. When any object moving in an arc experiences a buoyant force, pushing it away from the center.

This is how a car behaves on the road when it takes a sharp turn.

This is what the carousel looks like at low speed. The chairs are hanging. When the speed increases, the chairs rise above the resting point, in the maximum position going up to 90 degrees.

Here are the athletes who accelerate " hammer" before throwing. Athletes spin around " its axis"and the ball on the wire flies away at 85 meters!

FLIES AWAY.

Then tell me, Professor Sharov, how does water stay on the rotating Ball-Earth?

For those who didn't understand what this example was about, here are thousands experiments, how water would behave at the Equator of the Rotating Ball if this were true. The water doesn't hold on to the spinning ball!

PS : The earth is spinning too slow! Water doesn't feel it. And I don't feel it either.

You :What do you think? Professor Wonderful?

PZ : There is no rotation, just as there is no Ball. It is obvious. The water is at rest. I trust the facts and what I see in thousands of Experiments around.

Example 1. Water and washing machines.

Water and washing machines? Yeah, okay... Then question 2 will not leave you indifferent.

Question 2. Like ashes moving volcanoes and explosions rise vertically UP. And the smoke from moving the train always leaves BACK? A LOT OF PHOTOS.

I think you are familiar with these pictures? When steam trains ran along the rails, the smoke from them always went BACK. The train is moving, but the smoke is not.

But the same train is standing at the station. STANDS motionless. Smoke rises UP.

STILL<===========>UP.

And now it begins MAGIC !

What they look like ash emissions from volcanoes and ash emissions from bomb explosions on

« rotating at 1,666 km/h Earth «?

Volcano Sinaburg, Malaysia. Right on the Equator.
1,666 km/h wind speed around.

The height of the ash is 3 km! Vertical pillar! On the Equator!

Another release of a 6 km ash column. Volcano Klyuchevsky in Kamchatka. Higher than clouds! Vertically up!

Sakurajima Volcano. Japan. The height of the pillar is 5 kilometers! How a big steam locomotive smokes outside the city, right?

Not enough height?

Here's an explosion nuclear bomb"Unicorn" (Licorne) in French Polynesia, Muroroa Atoll. 20 degrees South Latitude. Below the Equator. Speed 1500 km/h in this place.

The height of the mushroom is 24 kilometers!

Can you feel the wind at the Equator?

Explosion mushroom hydrogen bomb on Enewetak Atoll, in the Pacific Ocean.

Mushroom height 24 km.

Do you see the clouds below?

The upper part of the mushroom reached the Stratosphere.

But all this is nonsense compared to the bomb that was exploded on Novaya Zemlya. Meet me. Photo of the Tsar Bomba mushroom from a distance of 160 km!

The height of the mushroom is 64 km!

And this is for comparison. Near the airplane below is the height of the first bomb “Unicorn = Licorne”.

Now the question?

Where did the Earth's rotation speed go??

Each of these mushrooms, whether from volcanoes or from explosions, rises vertically upward. It doesn’t blow away, doesn’t blow up, nothing happens at all with thousands of tons of dust.

What do you say, Professor Sharov?

PS : This is how it should be on a rotating Earth. I said that the atmosphere rotates with the surface.

You : Yes? The only problem is that the wind speed must increase with altitude! And the higher, the stronger. The mushroom should be spread in the direction of rotation, that is, from East to West. It's just basic mechanics.

Here is a disk of 3 areas, red, green, blue.

You understand that the closer to the center of the disk, the lower the speed. IN black dot in the center - speed 0, the further from the center, the higher the speed. After all, the disk makes a full circle with any part of it. The edge of the blue disk rotates at the same time as the edges of the green and red disks.

Here are 2 guys on the carousel. One sits, pressed to the center, and is fine, but the legs of the second describe huge circles around.

Why am I saying this?

Moreover, if the Earth is Spinning, then your air speed should increase with Height, if it is tightly stuck to the surface of the Earth, as stated Professor Sharov.

With height= rises SPEED air.

If so,

then we have huge cumulus clouds should stretch eastward, because the Earth rotates in the East direction, and the speed of the Atmosphere increases with altitude! This is according to you, Professor Sharov.

What do we have? Our mushrooms are tall 24 and 64 km, which

NOT STRETCHED ANYWHERE

I keep trying to see the wind in the East direction.

PS: This is impossible.

You : Impossible in your theory. What about you, Professor Wonderful?

PZ: The earth doesn't spin, And the atmosphere doesn't work. Air masses are transported by wind and temperature changes over specific areas of the Earth. Everything is as you see with your own eyes. As altitude increases, air speed does not increase. She has nowhere to go. Therefore, mushrooms from nuclear explosions will simply rise up and dissipate in the upper atmosphere. Matches the photo.

We ask readers for help

Example 2. Volcanoes, explosions, clouds.

The earth is motionless. The atmosphere is still. 78%, 1166 votes

I see a speed of 1,666 km/h! 14%, 205 votes

I see clouds that are torn apart strictly in height! 9%, 132 votes

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Let's move on to bombing and war.

Question 3. How bombs from an airplane hit the target, + East-West flight time. Flights and SCREENSHOTS.

You know what's in the world bombers= planes that drop bombs from above?

What am I interested in?

How do they hit the target when:

The earth is escaping DURING THE FLIGHT OF THE BOMB?

A bomb falls from a height at 7,000 m in 37.7 sec.

A minute of mathematics :))

Bomb drop time = root (2*height / 9.81).

The “parcel” flies from 7 km in 37.7 seconds!

The plane moves and the bomb flies an additional distance from the location " Reset» to the place « Explosion". Right?

Schematically.

The only problem is that what we saw on the DIAGRAM is only possible on STILL Earth.

As soon as you talk about the rotating Earth, then you have
BOMB + THE EARTH IS UNDER THE BOMB

D-V-I-F-E-T-S-Y.

If we take this point into account, then it is possible to bomb targets only by approaching from the EASTERN direction, compensating for the rotation of the Earth.

The FACTS say otherwise. You can bomb targets from any direction. Here is an excerpt from pilot manual .

Page 136. You can reach the target with ANYONE directions. No amendment to the Eastern direction (such as the official Rotation of the Earth). Sighting corrections are calculated immediately FOR ALL directions.

Page 137-138. The crew must be able to drop bombs from any previously unknown direction, excluding North South. Because the main direction may be protected by anti-aircraft guns, poor visibility, etc.

Dropping bombs does not depend in any way on the rotation of the Earth. And why? And because she is motionless.

Another interesting fact to the piggy bank.

Plane from London to New York flies LONGER than a plane from New York to London. Exactly a full hour longer.

But the whole jump was necessary, to show you even more photos of the ROTATING Round Earth.

Victory!

If a person does not see the difference between the first and second photo below, then you can pour ANYTHING into such a head.

Look how the line bends to the left, on the word “ ZENITH"below in the photo.

You : Professor Sharov, Did the earth forget to turn that day? Instead of a turn of 1000 km, at least, we saw only 68 kilometers?

PS : Felix did not leave the Earth's atmosphere, so in this case he did not feel the rotation. He would have to rise to an altitude of 150 km and higher.

You : So we won't be able to see any wind up to an altitude of 150 km?

PS : Yes. Up to 150 km altitude everything will look exactly the same as on non-rotating Earth.

You : Who can fly to an altitude above 150 km?

PS : It's definitely not you. Military, and only verified personnel.

PZ : I'll add my comment. Here Richard Branson(billionaire from England).

He promised back in 2004 that there would soon be space flights for everyone. He collected money from gullible citizens and showed a couple of prototypes. Moreover, he called Space a height of 16 km, with the required 100-150 km (Professor Sharov). It's 2017 and his Virgin Galactic ships are still not flying. One crashed under suspicious circumstances, after which everything went quiet.

Now a new billionaire, Elon Musk, is announcing flights into space for tourists in the near future... The Moon, Mars, applicants are being selected. You'll see, nothing will come of this again. As in last time. And all because:

Space = CLOSED.

If you can verify from Space that the Earth is Round or the Earth is Flat, will everyone be allowed to fly into Space in the near future?

Example 4. Will space be opened to ordinary people?

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And now a cash prize for those who were with us until the very end

Question 5.Artillery shooting and opportunity to earn $1,500

Artillery is a large caliber firearm. In order for her projectile to hit the target, the artilleryman must take into account many adjustments. The main ones:

- wind,
- time of the year,
- condensate in the barrel,
- air temperature.

Knowing these things, you can shoot quite well. Do you know what amendment they never take into account:

DO NOT take into account the MOTION (ROTATION) OF THE EARTH.

They don't pay attention to her at all. At the same time they hit!

Let's move on to the deal on $1,500.

For those who still believe that The earth rotates, I propose the following experiment.

1. We take a cannon and tie our “believer” to it. We are waiting for calm weather.

2. We understand the gun at an angle of 90 degrees (vertically upward).

3. Let's shoot!

We wait…

The projectile, according to official theory, must deviate to the side for every second that it is not attached to the surface of the Earth, and is not attached to the gun. Next to the blue man he falls

CAN NOT

SHOULD NOT.

But if it happens that a shell falls on his head, then he will be given + he will forever go down in the history of science! Are you ready to earn the easiest money in your life without risking anything?

I'll bet you a grand that the Earth doesn't spin!

The earth is always in motion. Although we seem to be standing motionless on the surface of the planet, it continuously rotates around its axis and the Sun. This movement is not felt by us, as it resembles flying in an airplane. We're moving at the same speed as the plane, so we don't feel like we're moving at all.

At what speed does the Earth rotate around its axis?

The Earth rotates once on its axis in almost 24 hours (to be precise, in 23 hours 56 minutes 4.09 seconds or 23.93 hours). Since the Earth's circumference is 40,075 km, any object at the equator rotates at a speed of approximately 1,674 km per hour or approximately 465 meters (0.465 km) per second (40075 km divided by 23.93 hours and we get 1674 km per hour).

At (90 degrees north latitude) and (90 degrees south latitude), the speed is effectively zero because the pole points rotate at a very slow speed.

To determine the speed at any other latitude, simply multiply the cosine of the latitude by the planet's rotation speed at the equator (1674 km per hour). The cosine of 45 degrees is 0.7071, so multiply 0.7071 by 1674 km per hour and get 1183.7 km per hour.

The cosine of the required latitude can be easily determined using a calculator or looked at in the cosine table.

Earth rotation speed for other latitudes:

• 10 degrees: 0.9848×1674=1648.6 km per hour;
• 20 degrees: 0.9397×1674=1573.1 km per hour;
• 30 degrees: 0.866×1674=1449.7 km per hour;
• 40 degrees: 0.766×1674=1282.3 km per hour;
• 50 degrees: 0.6428×1674=1076.0 km per hour;
• 60 degrees: 0.5×1674=837.0 km per hour;
• 70 degrees: 0.342×1674=572.5 km per hour;
• 80 degrees: 0.1736×1674=290.6 km per hour.

Cyclic braking

Everything is cyclical, even the speed of rotation of our planet, which geophysicists can measure with millisecond accuracy. The Earth's rotation typically has five-year cycles of deceleration and acceleration, and Last year The slowdown cycle is often associated with a surge in earthquakes around the world.

Since 2018 is the last in the slowdown cycle, scientists expect growth this year seismic activity. Correlation is not causation, but geologists are always looking for tools to try to predict when the next big earthquake will happen.

Oscillations of the earth's axis

The Earth rotates slightly as its axis drifts toward the poles. It was noticed that the drift earth's axis has accelerated since 2000, moving east at 17 cm per year. Scientists have determined that the axis is still moving east instead of moving back and forth due to the combined effect of the melting of Greenland and , as well as the loss of water in Eurasia.

Axial drift is expected to be particularly sensitive to changes occurring at 45 degrees north and south latitude. This discovery led to scientists finally being able to answer the long-standing question of why the axis drifts in the first place. The axis wobble to the East or West was caused by dry or wet years in Eurasia.

At what speed does the Earth move around the Sun?

In addition to the speed of the Earth's rotation on its axis, our planet also orbits the Sun at a speed of about 108,000 km per hour (or approximately 30 km per second), and completes its orbit around the Sun in 365,256 days.

It was only in the 16th century that people realized that the Sun is the center of our solar system, and that the Earth moves around it, and is not the fixed center of the Universe.

Our planet is in constant movement. Together with the Sun, it moves in space around the center of the Galaxy. And she, in turn, moves in the Universe. But highest value for all living things the rotation of the Earth around the Sun plays a role own axis. Without this movement, conditions on the planet would be unsuitable for supporting life.

solar system

According to scientists, the Earth as a planet in the solar system was formed more than 4.5 billion years ago. During this time, the distance from the luminary practically did not change. The speed of the planet's movement and the gravitational force of the Sun balanced its orbit. It's not perfectly round, but it's stable. If the gravity of the star had been stronger or the speed of the Earth had noticeably decreased, then it would have fallen into the Sun. Otherwise, sooner or later it would fly into space, ceasing to be part of the system.

The distance from the Sun to the Earth makes it possible to maintain optimal temperature on its surface. The atmosphere also plays an important role in this. As the Earth rotates around the Sun, the seasons change. Nature has adapted to such cycles. But if our planet were at a greater distance, the temperature on it would become negative. If it were closer, all the water would evaporate, since the thermometer would exceed the boiling point.

The path of a planet around a star is called an orbit. The trajectory of this flight is not perfectly circular. It has an ellipse. The maximum difference is 5 million km. The closest point of the orbit to the Sun is at a distance of 147 km. It's called perihelion. Its land passes in January. In July, the planet is at its maximum distance from the star. The greatest distance is 152 million km. This point is called aphelion.

The rotation of the Earth around its axis and the Sun ensures a corresponding change in daily patterns and annual periods.

For humans, the movement of the planet around the center of the system is imperceptible. This is because the mass of the Earth is enormous. Nevertheless, every second we fly about 30 km in space. This seems unrealistic, but these are the calculations. On average, it is believed that the Earth is located at a distance of about 150 million km from the Sun. It makes one full revolution around the star in 365 days. The distance traveled per year is almost a billion kilometers.

The exact distance that our planet travels in a year, moving around the star, is 942 million km. Together with her we move through space in an elliptical orbit at a speed of 107,000 km/hour. The direction of rotation is from west to east, that is, counterclockwise.

Full turn the planet does not complete in exactly 365 days, as is commonly believed. In this case, about six more hours pass. But for the convenience of chronology, this time is taken into account in total for 4 years. As a result, one additional day “accumulates”; it is added in February. This year is considered a leap year.

The speed of rotation of the Earth around the Sun is not constant. It has deviations from the average value. This is due to the elliptical orbit. The difference between the values ​​is most pronounced at the perihelion and aphelion points and is 1 km/sec. These changes are invisible, since we and all the objects around us move in the same coordinate system.

Change of seasons

The Earth's rotation around the Sun and the tilt of the planet's axis make the seasons possible. This is less noticeable at the equator. But closer to the poles, the annual cyclicity is more pronounced. Northern and Southern Hemisphere The planets are heated unevenly by the Sun's energy.

Moving around the star, they pass four conventional orbital points. At the same time, alternately twice during the six-month cycle they find themselves further or closer to it (in December and June - the days of the solstices). Accordingly, in the place where the surface of the planet warms up better, there the temperature environment higher. The period in such a territory is usually called summer. In the other hemisphere it is noticeably colder at this time - it is winter there.

After three months of such movement with a periodicity of six months, the planetary axis is positioned in such a way that both hemispheres are in the same conditions for heating. At this time (in March and September - the days of the equinox) the temperature regimes are approximately equal. Then, depending on the hemisphere, autumn and spring begin.

Earth's axis

Our planet is a rotating ball. Its movement is carried out around a conventional axis and occurs according to the principle of a top. By resting its base on the plane in an untwisted state, it will maintain balance. When the rotation speed weakens, the top falls.

The earth has no support. The planet is affected by the gravitational forces of the Sun, Moon and other objects of the system and the Universe. Nevertheless, it maintains a constant position in space. The speed of its rotation, obtained during the formation of the core, is sufficient to maintain relative equilibrium.

The earth's axis does not pass perpendicularly through the globe of the planet. It is inclined at an angle of 66°33´. The rotation of the Earth around its axis and the Sun makes possible the change of seasons. The planet would “tumble” in space if it did not have a strict orientation. No constancy of environmental conditions and life processes there would be no speech on its surface.

Axial rotation of the Earth

The rotation of the Earth around the Sun (one revolution) occurs throughout the year. During the day it alternates between day and night. If you look at North Pole Earth from space, you can see how it rotates counterclockwise. It completes a full rotation in approximately 24 hours. This period is called a day.

The speed of rotation determines the speed of day and night. In one hour, the planet rotates approximately 15 degrees. Rotation speed in different points its surface is different. This is due to the fact that she has spherical shape. At the equator linear speed is 1669 km/h, or 464 m/sec. Closer to the poles this figure decreases. At the thirtieth latitude, the linear speed will already be 1445 km/h (400 m/sec).

Due to its axial rotation, the planet has a somewhat compressed shape at the poles. This movement also “forces” moving objects (including air and water flows) to deviate from their original direction (Coriolis force). Another important consequence of this rotation is the ebb and flow of tides.

the change of night and day

A spherical object is only half illuminated by a single light source at a certain moment. In relation to our planet, in one part of it there will be daylight at this moment. The unlit part will be hidden from the Sun - it is night there. Axial rotation makes it possible to replace these periods.

In addition to the light regime, the conditions for heating the surface of the planet with the energy of the luminary change. This cyclicality is important. The speed of change of light and thermal regimes is carried out relatively quickly. In 24 hours, the surface does not have time to either heat up excessively or cool down below the optimal level.

The rotation of the Earth around the Sun and its axis with relative constant speed is of decisive importance for the animal world. Without a constant orbit, the planet would not remain in the optimal heating zone. Without axial rotation, day and night would last for six months. Neither one nor the other would contribute to the origin and preservation of life.

Uneven rotation

Throughout its history, humanity has become accustomed to the fact that the change of day and night occurs constantly. This served as a kind of standard of time and a symbol of the uniformity of life processes. The period of rotation of the Earth around the Sun is influenced to a certain extent by the ellipse of the orbit and other planets in the system.

Another feature is the change in the length of the day. The Earth's axial rotation occurs unevenly. There are several main reasons. They matter seasonal variations, related to atmospheric dynamics and precipitation distribution. In addition, a tidal wave directed against the direction of the planet’s movement constantly slows it down. This figure is negligible (for 40 thousand years per 1 second). But over 1 billion years, under the influence of this, the length of the day increased by 7 hours (from 17 to 24).

The consequences of the Earth's rotation around the Sun and its axis are being studied. These studies have great practical and scientific significance. They are used not only to accurately determine stellar coordinates, but also to identify patterns that can affect human life processes and natural phenomena in hydrometeorology and other fields.

Since time immemorial, humanity has been interested in the processes that occur in the Universe. Why does the sun rise every morning? What is the Moon? How many stars are there in the sky? Does the Earth rotate, and at what speed?
What is the speed of the Earth?
People have long observed the change of day to night and the annual sequence of seasons. What does this mean? Later it was proven that such changes are caused by the rotation of our planet around its axis. However, humanity did not come to this knowledge immediately. It took many years to prove the obvious this moment data.
For a long time, people could not understand this phenomenon, since, in their opinion, a person is in a state of calm, and no movement is visible in him. However, such a statement is not correct. All objects around you (table, computer, window and others) are in motion. How can it move? This occurs due to the rotation of the Earth around its axis. In addition, our planet moves not only around its axis, but also around the celestial body. Moreover, its trajectory is not a circle, but resembles an ellipse.
To demonstrate the peculiarities of the movement of a celestial body, they often turn to the spinning top. Its movements are very similar to the rotation of the Earth.
Later scientific methods it has been proven that our planet moves. So, the Earth makes one revolution around its axis in a day - twenty-four hours. This is precisely what is associated with the change of time of day, day to night.
The mass of the Sun is significantly greater than the mass of the Earth. The distance between these celestial bodies reaches one hundred and fifty million kilometers. Studies have shown that the Earth's rotation speed reaches thirty kilometers per second. A full revolution is completed in one year. In addition, after four years one more day is added, which is why we have leap year.
But humanity did not immediately come to such results. Thus, even G. Galileo opposed the theory that stated the rotation of the planet. He demonstrated this assertion as follows. The scientist threw a stone from the top of the tower, and it fell at the foot of the building. Galileo pointed out that the rotation of the Earth would shift the place where the stone fell, but modern research completely deny these allegations.
Based on the foregoing, it follows that humanity has come a long way to understand that the Earth is in constant motion around the Sun. Firstly, the planet rotates around its axis. Also our heavenly body It also moves around the luminary that provides us with warmth. This is what causes the change of time of day and seasons.