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Today I am answering an angry letter from the subscriber who came to me by email. The letter sounded like this:

I read in your article that the moon rotates around its axis. What nonsense? We always see only one side of the moon and never see the reverse. For example, the Earth rotates around its axis and around the Sun and constantly turns to him with different parties, thanks to which there is a change of day and night. Examine at least a little astronomy and do not fool our heads!

The statistics and spelling of the author of the question are preserved. I quickly sent a short answer with an explanation of how it is possible, but then I thought that this topic deserves a separate article. Well, let's deal with how the moon rotates.

If the moon rotates around his axis, then why do we see only one of her side?

The moon really rotates not only around the Earth, but also around its axis. But we do not see her opposite direction because the rotation of the moon around the earth is synchronized with the rotation of the moon around its axis. Simply put the moon makes a full turn around the earth for the same time as around its axis.

If the moon rotates around his axis, then why do we see only one of her side?

This is probably not too easy to visualize, so let's look at a visual example. How easy it is to make sure the moon is addressed to the ground with one side. However, if you arrange the images of the Moon near, it is easy to see that it turns around its axis:

If the moon rotates around his axis, then why do we see only one of her side?

And on the contrary, if there was no rotation of the moon around their axis, then we could see different sides of the moon.

If the moon rotates around his axis, then why do we see only one of her side?

How easy it is to see in the figure above, in the absence of rotation in the moon around its axis it turns out to be facing the ground with different sides. No rotation is also clearly visible if you position these images of the moon nearby:

If the moon rotates around his axis, then why do we see only one of her side?

The situation when the rotation of the satellite around its axis is synchronized with its rotation around the planet is called Tidal capture . Once upon a time, the rotation of the moon around its axis was not synchronized with her rotation around the Earth and then it was really periodically rotated to the ground with the opposite side, but over time, under the action of the tidal forces of the Earth, the rotation of the moon around its axis was synchronized.

If the moon rotates around his axis, then why do we see only one of her side?

This situation is not unique at all - most of the satellites planets in our solar system are tidal capture from their planets. The exceptions are mainly satellites of planets-giants located on distant orbits from their planets.

If the moon rotates around his axis, then why do we see only one of her side?

Moreover, the planets can also be in the tidal capture from their stars. For example, for a long time it was believed that Mercury is in the tidal seizure by the Sun, but in 1965 it was found that it was not.

Read also : Where did the moon come from?

An exoplanet can serve as an exoplanet near the stars close to the Sun - Proxima Centaur B, which is in the tidal capture from his star, i.e. Always addressed to her side.

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The simplest principles of heavenly mechanics can be stated as follows: the Earth rotates around the sun and around its axis, the moon in turn revolves around the Earth and also around its axis. How then it turns out that with the Earth, we are constantly visible by the same side of the moon?

The answer is simple: The speed of rotation of the moon around the Earth is absolutely identical to the speed with which it makes the turn around its axis. , that is, the rotation of the moon around the earth and around its own axis is synchronized. This synchronization arose due to the effects of the gravitational attraction of the Earth, friction of tides in particular.

Visible side of the Moon

The visible side of the moon, we are visible from the ground only.

It sounds a little difficult, so it is better to imagine how everything is arranged we suggest you make a little experience. Put some item in the center of the room: a chair, the ball or something else, in the experience it will be the Earth. Become next to this item at a distance of an elongated hand so that the tips of the fingers are at the center of the imaginary planet, - you will be in the experiment of the moon. Make one turn around, without dropping the hand (fingertips must be constantly at the center of the subject). Thus, at the same time, you made one turn around your axis and one turn around around the imaginary land, and at the same time you were all the time turned to the planet one side.

Moon rotation scheme

This animation (left) clearly demonstrates the synchronized movement of the moon around the Earth, when one turn around the axis coincides with the time with one turn around the planet. On the right shows an example of not synchronized satellite rotation.

The full turn of the moon around the Earth / his axis takes 27 days 7 hours and 43.1 minutes.

Interestingly, from the ground you can see a little more than half of the surface of the moon, 59% if you are accurate. This phenomenon is called Lunar librants , it arises as a result that the moon moves in its orbit with a non-constant speed: in Perigue - in the point closest to Earth moves faster, and slower in the apogee - the most distant point of the lunar orbit, which allows you to see 4.5% of the Western and Eastern Territory The dark side of the moon.

Lunar librants

Animation of lunar librations, as a result of which 59% of the satellite surface can be seen.

Permanent satellite of our planet excited the minds of people from the moment of the origin of mankind. In the ancient writers and the Runic Vedas there are mentions of a permanent night guest. Ancient already knew that many processes on the planet runs the moon, the reverse side of which was endowed with mystical properties. The moon (from the ancientindian Louksna - "Svetookaya") - a wizard, inspiring poets and artists, the patroness of lovers and a symbol of romanticism.

Moon reverse side

The heroine of ancient ledges

In the Runic Vedas we are talking about the three mions, accompanied by the Midgard Planet (Earth). The smallest luller, the middle month and the Big Fatt. In the Russian "Songs of the Birds of Gamayun" the first great flood (112 thousand years ago) happened as a result of the death of Leli.

The second was destroyed by Fatt Atlanta, destroying Atlantis 13 thousand years ago. And there are one last and most mysterious moon with a period of rotation at 29.5 days left in people.

Oddly enough, but NASA studies today put forward a hypothesis about the existence in the distant past of several satellites of the Earth. Even created the model "Trojans", where satellites are called the "Trojan Asteroid Moon". What is on the back of the moon

back side

From the opening of Galilee in 1635, for which he burned, the Inquisition, the mysters of the hidden side of the moon took the minds of astronomers. Traditions - legends, but galilers in their primitive telescope with an increase in just 3 times considered crater and mountains on the moon, made a map of the surface and made assumptions about the origin of the crater. Repeated observations only strengthened interest in the question: "Why do we see only one side of the moon?"

What only versions and hypotheses did not extend! From the fact that it is flat, to the Galographic model. What is located on the back of the moon, people saw the victim in 1959, when the Soviet satellite "Luna-3" made the first pictures of the invisible side of the Moon.

What are you - hidden moon?

The following has become clear from the pictures. The surface that is located on the reverse side of the moon is similar to the visible, but there is clear geographical asymmetry. 80% of the lunar seas were on the visible side, and on the opposite only two large seas - Moscow and dreams.

On the back of the bark turned out to be thicker, more crater, they are wider and deeper. The largest in diameter is 591 kilometers - the shock multi-rolling crater Herzshprung, the depth of which is more than 4500 meters. The thickness of the cortex is uneven, somewhere more, somewhere thinner. Why - no answer yet.

who first flew to the moon

There is an explanation

Why we see only one side of the moon, explains the theory of libration. And the Earth, and the moon spins each one by its axis. The gravitational forces of our planet cause tidal forces acting on the moon in the same way as it causes tides and fed on Earth. Everyone knows that due to the attraction of the moon, the part of our planet, which is turned to the satellite, waves in motion in its direction (tidal humps). The mass of the moon is many times less than the mass of our planet, respectively, the force of exposure to the moon is many times more. It is the equillation of these forces that synchronized the rotation of the moon.

Why we see only one side of the moon

Seen more than not visible

The attentive observer will notice the change in the lunar. Astronomy reports that we see 59% of the entire surface of the moon. The longitude and latitude of the satellite fluctuate that it allows you to see an additional 6.5 degrees from above and below the poles of the planet. This occurs as a result of the displacement of the luna axis relative to the trajectory of movement and deviations of the ecliptic (the plane of rotation) of the Earth to the Sun. Here is such a coquette this moon! The reverse side is still less.

Who is the main one?

Research and calculations show that such a small planet with a diameter of almost 3,500 kilometers, removed from the Earth by 384 kilometers, weighing 60% of the earth, is a prerequisite for the existence of our house in the solar system. And although our satellite is moving away from us at a speed of 38 mm per year, his loss does not threaten us within the life of our sun.

Secrets of the reverse side of the moon

Earth - Moon: What is the future?

According to confirmed information, in Devon (410 million years ago), a day consisted of 21.8 hours. The moon was closer to us, tides with attachments more and more powerful. The increase in our day by 23 microseconds per year will lead to the fact that in five billion years, the year on the planet will decrease to nine days, and the Moon will make one turn once a day. And all this is the braking the moon. It slows down the rotation of the Earth around the axis 0.00164 seconds per day.

Moon program and cosmic law

With the onset of the era of cosmonautics and long before flights to space attempts to present their rights to space facilities were made by countries and people. To prevent the disputes of the type, who first flew to the moon - that sneakers, since 1937 attempts have been made to create a legal field in the development of space. As a result of international lawyers in 1967, more than a hundred countries ratified an agreement that determines the principles of activity in outer space. It was the first document in the field of law in space, followed by others.

It is worth reminding that the sale and purchase of about four million residents of the planet areas on the moon are not legal. An enterprising American Dennis Hope, in 1980 she announced himself with the owner of all space objects of our galaxy (well even excluded the Earth and the Sun), became a millionaire. But the buyers of his certificates own only beautiful pieces.

Why we see only one side of the moon

Secrets of the reverse side of the moon

Smart kilograms from the moon, hundreds of experiments, 6 landings on the Moon only in the US program "Apollo" - and many questions that are no answers. We give only the most interesting.

  • Why a promising American project for the study of the moon "Avatars: virtual reality costumes" stopped finance?
  • Where did energy come from for broadcasting from the American complex left on the moon, that he sent signals after more than two years later, although it was calculated only for a year?
  • Calculations show that inside the moon is hollow. What is in this cavity of 70 million cubic kilometers? This fact confirms the echo on the moon, which measured the crews "Apollo-12". It accounted for almost three and a half hours and spread to 40 kilometers.
  • What actually saw the American astronaut Neil Armstrong, the one who first flew to the moon and landed on it? After all, the falsification of the material shown to us about its landing is proved.
  • Why if our satellites from the orbits make street pictures with clearly visible license plates of cars, we have photos of such a low resolution of the closest planet of the moon? The reverse side is generally represented by the minimum number of pictures. What do cosmic corporations hide from us?

Theories and guesses have accumulated around the favorite of poets many. Psychics and astrologers, mystics and fortune-tales associate fate of people and the universe with a silent and sad night guest. Symbol of dreams and hopes, dreamers and romantics mascot, our permanent moon companion - how many secrets have you not revealed and how many surprises do you present to people?

As soon as scientists began to consider the moon in detail, they noticed that she was always turned to Earth only one side. As a result, the second, the dark side was first possible to consider only in 1959, with the beginning of the cosmic era. Why is our satellite always addressed to us only one side?

The fact is that the moon rotates not only around the Earth, but also has its own axis of rotation. However, both satellite turns in the same time - 27 days, 7 hours and another 43 minutes. As a result, due to such a combination of rotational movements, the moon always shows observers on the ground only one of its side.

In astronomy, a similar phenomenon is called synchronous rotation, or tidal capture. It should be noted that most satellites planets in the solar system are synchronized and turned to their planets with only one side.

What is the reason for such a synchronization? It lies in the action of tidal forces on the satellite from the planet. If the satellite at some point is not synchronized, then the gravity of the planet either slows down or, on the contrary, accelerates its rotation around its own axis until the angular velocities of both rotational movements coincide.

Обратная сторона Луны, темная сторона луны, фото, НАСА, NASA
Photo reverse side moon: NASA / GSFC / Arizona State University

Note that the earth itself is not synchronized with respect to the moon. This means that from our satellite at different periods of time you can see different hemispheres of the Earth. However, if the satellite mass is very large, then theoretically, it can synchronize its own planet. The classic example of such a phenomenon is Pluto and its satellite Charon. Only one side of Charon is visible from Pluto, but only one hemisphere of Pluto can be seen from Charon.

Interestingly, in fact, from the ground, you can still partially see the dark side of the moon. The fact is that the orbit of the moon is not the perfect circle, and the ellipse, which is why the angular velocity of the moon changes slightly. As a result, the moon "fluctuates" relative to his position in the sky. Such oscillations are called librations. Due to surveillance from Earth at different points in time, not exactly 50, and 59% of the surface of the moon are available.

Video: Why is only one side of the moon visible?

List of sources used

• https://masterok.livejournal.com/4543293.html • https://udipedia.net/pochemu-my-vidim-tolko-odnu-storonu-luny/ 

As many have already managed to notice, the moon is always rotated by the same side. The question arises: does the rotation around their axes of these celestial bodies are synchronous about each other?

Although the moon revolves around his axis, she is always facing the ground with the same side, that is, the appeal of the moon around the earth and rotation around its own axis is synchronized. This synchronization is caused by friction of tides, which produced land in the shell of the moon.

Another riddle: Does the moon rotate around his axis at all? The answer to this question lies in the resolution of the semantic problem: who stands at the head of the corner - the observer on Earth (in this case, the moon does not rotate around its axis), or the observer who is in extraterrestrial space (then the only satellite of our planet revolves around his axis).

We will conduct such an uncomplicated experiment: draw two circles of the same radius in contact with each other. Now imagine them in the form of disks and mentally ride one disk on the edge of the other. At the same time, the rods should continuously contact. So, how much, in your opinion, the rolling disk will turn around your axis, making a full turn around a static disk. Most will say that once. To test this assumption, take two coins of the same size and repeat the experiment in practice. And what's the result? Rolling coin twice has time to turn around its axis, before one turn around a fixed coin! Surprised?

On the other hand, does the rotation of the rolling coin? The answer to this question, as in the case of the Earth and the Moon, depends on the observer reference system. Regarding the starting point of touch with a static coin moving coin makes one turn. Regarding the third-party observer in one turn around the stationary coin, the rolling coin turns twice.

Following the publishing in 1867, in the journal Scientific American of this charter about coins, the editors were literally littered with letters from indignantly readers who adhered to opposite opinions. They almost immediately conducted a parallel between paradoxes with coins and celestial bodies (land and moon). Those who adhered to the point of view that the moving coin in one turn around the stationary coin once time to turn around around their own axis was inclined to think about the inability of the moon to rotate around their axis. The activity of readers regarding this problem has increased so much that in April 1868 it was announced the termination of the controversy on this topic on the pages of the Scientific American magazine. It was decided to continue the disputes in a specially dedicated to this "Great" issue of The Wheel magazine ("Wheel"). One room at least came out. In addition, illustrates contained a variety of drawings and schemes of intricate devices created by readers to convince editors in their wrong.

Various effects generated by the rotation of celestial bodies can be detected using devices like Fouco Pendulum. If it is placed on the moon, it turns out that the moon, rotating around the Earth, makes turns around its own axis.

Can these physical considerations act as an argument confirming the rotation of the moon around its axis, regardless of the observer reference system? Oddly enough, but from the point of view of the general theory of relativity, probably no. You can generally assume that the moon does not rotate at all, this universe rotates around it, while creating gravitational fields like the moon rotating in fixed space. Of course, the universe is more convenient to take for a fixed reference system. However, if you think objectively, relating to the theory of relativity The question of whether this or that object is really rotated or is constantly meaningless. "Real" can only be a relative movement.

To illustrate - imagine that the earth and the moon are connected by a bar. The rod is fixed on both sides hard in one place. This is the situation of mutual synchronization - and one side of the moon is visible from the ground, and one side of the earth is visible from the moon. But we do not have the way Pluto and Charon rotate. And we have a situation - one end is fixed hard on the moon, and the other moves along the surface of the Earth. Thus, one side of the moon is visible from the ground, and from the moon different sides of the earth.

Instead of the rod, the strength of attraction acts. And its "hard mount" causes tidal phenomena in the body, which gradually or slow down, or accelerate the rotation (depending on the satellite, or too slow).

Some other bodies of the solar system are also already in such synchronization.

Thanks to the photography, we can still see more than half of the surface of the moon, not 50% - one side, and 59%. There is a phenomenon of libration - seeming oscillatory movements of the moon. They are caused by the irregularities of orbits (not perfect circumference), inclons of the axis of rotation, tidal forces.

The moon is in the tidal seizure of the Earth. Tidal capture is a situation where the period of satellite circulation (moon) around its axis coincides with the period of its appeal around the central body (land). At the same time, the satellite is always addressed to the central body of the same side, as he draws around his axis during the same time he is required to turn around the orbit around his partner. Tidal capture occurs during the mutual movement and is characteristic of many large natural satellites of the planets of the solar system, and is also used to stabilize some artificial satellites. When observing a synchronous satellite from the central body, only one side of the satellite is always visible. When observing this side of the satellite, the central body "hangs" in the sky is motionless. On the opposite side of the central body satellite is never visible.

Facts about the moon On Earth there are moon trees

Hundreds of seeds of trees were brought to the moon during the "Apollo-14" mission of 1971. Former American Forestry Employee (USFS) Stewart Ruza took seeds as a personal cargo as part of the NASA / USFS project.

Upon returning to Earth, these seeds were grouped, and the obtained lunar seedlings landed throughout the United States, as part of the celebration of the two hundredth anniversary of the country in 1977.

There is no dark side

Put the fist on the table, fingers down. You see His back side. Someone on the other side of the table will see the knuckles of the fingers. Approximately so we see the moon. Since it is tidal blocked in relation to our planet, we will always see it from the same point of view.

The concept of the "dark side" of the moon came out of the popular culture - remember the Album Pink Floyd 1973 "Dark Side of The Moon" and the Thriller of 1990 - and means truly distant, night, side. The one we never see and which is the opposite of the closest to us.

On the length of time we see more than half of the moon, thanks to the libration

The moon moves along its orbital path and removes from the ground (at a speed of one inch per year), accomplishing our planet around the Sun.

If you were looking at the moon in approaching as it accelerates and slowing down during this trip, you would also see that she swayed from north to south and from west to east in motion known as libration. As a result of this movement, we see part of the sphere, which is usually hidden (about nine percent).

However, we will never see another 41%.

Helium-3 from the moon could solve the energy problems of the Earth

The solar wind is electrically charged and from time to time faces the moon and is absorbed by the rocks of the lunar surface. One of the most valuable gases that are available in this wind and are absorbed by the rocks, it is helium-3, a rare helium-4 isotope (which is commonly used for balloons).

Helium-3 is perfect for satisfying the needs of the thermalide synthesis reactors followed by the generation of energy.

One hundred tons of helium-3 could satisfy the needs of Earth in energy for a year, if you believe Extreme Tech counts. The surface of the moon contains about five million tons of helium-3, whereas on earth it is only 15 tons.

The idea is as follows: we fly to the moon, we produce helium-3 in the mine, we recruit it in the tanks and send it to Earth. True, it can happen very soon.

Is there some truth in myths about the madness of the full moon?

Not really. The assumption that the brain, one of the watery organs of the human body, is experiencing the influence of the moon, they are rooted in the legends, which are several millennia, during the time of Aristotle.

Since the gravitational attraction of the Moon controls the tides of the earth's oceans, and people consist of 60% of the water (and a brain by 73%), Aristotle and Roman scientist Pliny Senior believed that the moon should have a similar effect on ourselves.

This idea gave rise to the term "lunar madness", "Transylvanian Effect" (which was widespread in Europe during the Middle Ages) and "lunar insanity". The films of the 20th century were poured into the fire in the fire, tied the full moon with psychiatric disorders, automotive accidents, murders and other incidents.

In 2007, the Government of the British Primorsky Town Brighton ordered to send additional police patrols during the full moon (and in salary days too).

Nevertheless, science says that there is no statistical connection between the behavior of people and the full moon, according to several studies, one of which was held by American psychologists John Rotton and Ivan Kelly. It is unlikely that the moon affects our psyche, rather, it simply adds light to which it is convenient to commit crimes.

Missing lunar stones

In the 70s, Richard Nixon administration distributed stones delivered from the lunar surface during the Apollo-11 missions and Apollo-17, the leaders of 270 countries.

"We would like to share these stones with all the countries of our world," said Apollo-17 Astronaut Eugene Sernan.

Unfortunately, more than one hundred such stones were missing and, as expected, went on a black market. Working in NASA in 1998, Joseph Guthainz even spent a secret operation called "Lunar Eclipse" to put an end to the illegal sale of these stones.

What was all this noise? A piece of lunar stone with a pea size was estimated at 5 million dollars in the black market.

Moon belongs to Dennis Hoump

At least he thinks so.

In 1980, using the Lazake in the UN Cosmic Property Agreement, according to which "no country" cannot qualify for a sunny system, a resident of Nevada Dennis Hope wrote in the UN and announced the right to private property. He was not answered.

But why wait? Hope opened the lunar embassy and began selling one-panel sections on 19.99 dollars for each. For the UN, the solar system is almost the same as world oceans: beyond the economic zone and belonging to each resident of the Earth. Hope argued that he sold extraterrestrial real estate celebrities and three former US presidents.

It is not clear, indeed Dennis Hope does not understand the wording of the contract or is trying to force legislative forces to make a legal assessment of its actions so that the development of celestial resources began with more transparent legal conditions.

[Sources ]Sources: https: //thequestion.ru/https: //rwspace.ru/article/lyna/vrashhaetsya-li-luna-vokrug-svoej-osi.htmlhttps: //ru.wikipedia.org/wiki/%D0%9B % D1% 83% D0% BD% D0% b0https: //hi-news.ru/space/8-faktov-o-lune-kotorye-vy-mogli-ne-znat.html

In this article we will find out - why we see only one side of the moon.

The simplest principles of heavenly mechanics can be stated as follows: the Earth rotates around the sun and around its axis, the moon in turn revolves around the Earth and also around its axis. How then it turns out that with the Earth, we are constantly visible by the same side of the moon?

Почему мы видим только одну сторону луны

The answer to the question "Why do we see only one side of the moon?" Simple: The speed of rotation of the moon around the Earth is absolutely identical to the speed with which it makes the turn around its axis, that is, the rotation of the moon around the earth and around its own axis is synchronized. This synchronization arose due to the effects of the gravitational attraction of the Earth, friction of tides in particular.

The visible side of the moon, we are visible from the ground only.

It sounds a little difficult, so it is better to imagine how everything is arranged we suggest you make a little experience. Put some item in the center of the room: a chair, the ball or something else, in the experience it will be the Earth.

Почему мы видим только одну сторону луны

Become next to this item at a distance of an elongated hand so that the tips of the fingers are at the center of the imaginary planet, - you will be in the experiment of the moon. Make one turn around, without dropping the hand (fingertips must be constantly at the center of the subject). Thus, at the same time, you made one turn around your axis and one turn around around the imaginary land, and at the same time you were all the time turned to the planet one side.

The full turn of the moon around the Earth / his axis takes 27 days 7 hours and 43.1 minutes.

Interestingly, from the ground you can see a little more than half of the surface of the moon, 59% if you are accurate. This phenomenon is called lunar librations, it arises due to the fact that the moon moves in its orbit with a non-permanent speed: in Perigue - in the point closest to Earth moves faster, and slower in the apogee - the most distant point of the lunar orbit, which allows you to see 4.5 % of the western and eastern edge of the dark side of the moon.

Why we see only one side of the moon: synchronous rotation of the moon and land

I will add that synchronous rotation or tidal grip is an equilibrium state and all the bodies tend to him over time. For the illustration - imagine that the earth and the moon are connected by a bar.

Почему мы видим только одну сторону луны

The rod is fixed on both sides hard in one place. This is the situation of mutual synchronization - and one side of the moon is visible from the ground, and one side of the earth is visible from the moon. But we do not have the way Pluto and Charon rotate.

And we have a situation - one end is fixed hard on the moon, and the other moves along the surface of the Earth. Thus, one side of the moon is visible from the ground, and from the moon different sides of the Earth. An attraction force acts on the rod. And its "hard mount" causes tidal phenomena in the body, which gradually or slow down, or accelerate the rotation (depending on whether the satellite rotates too fast, or too slow). Then other bodies of the solar system are also in such synchronization. Thanks We can still see more than half of the surface of the moon, not 50% - one side, and 59%.

There is a phenomenon of libration - seeming oscillatory movements of the moon. They are caused by the irregularities of orbits (not perfect circumference), inclons of the axis of rotation, tidal forces.

Yes, it happened. There are crater, "seas" - the same as on the side, visible from the Earth.2 inverse and dark - not the same. The "reverse" side (not visible from the Earth) - yes, the most, "dark" (not lit by the sun) is constantly shifted.

The moon is in the tidal capture of the earth

Tidal capture is a situation where the period of satellite circulation (moon) around its axis coincides with the period of its appeal around the central body (land). At the same time, the satellite is always addressed to the central body of the same side, as he draws around his axis during the same time he is required to turn around the orbit around his partner.

Почему мы видим только одну сторону луны

Tidal capture occurs during the mutual movement and is characteristic of many large natural satellites of the planets of the solar system, and is also used to stabilize some artificial satellites.

When observing a synchronous satellite from the central body, only one side of the satellite is always visible. When observing this side of the satellite, the central body "hangs" in the sky is motionless. On the opposite side of the central body satellite is never visible.

Interesting facts about the moon

On Earth there are moon trees

Hundreds of seeds of trees were brought to the moon during the "Apollo-14" mission of 1971. Former American Forestry Employee (USFS) Stewart Ruza took seeds as a personal cargo as part of the NASA / USFS project.

Почему мы видим только одну сторону луны

Upon returning to Earth, these seeds were grouped, and the obtained lunar seedlings landed throughout the United States, as part of the celebration of the two hundredth anniversary of the country in 1977.

There is no dark side

Put the fist on the table, fingers down. You see His back side. Someone on the other side of the table will see the knuckles of the fingers.

Почему мы видим только одну сторону луны

Approximately so we see the moon. Since it is tidal blocked in relation to our planet, we will always see it from the same point of view.

The concept of the "dark side" of the moon came out of the popular culture - remember the Album Pink Floyd 1973 "Dark Side of The Moon" and the Thriller of 1990 - and means truly distant, night, side. The one we never see and which is the opposite of the closest to us.

On the length of time we see more than half of the moon, thanks to the libration

The moon moves along its orbital path and removes from the ground (at a speed of one inch per year), accomplishing our planet around the Sun.

Почему мы видим только одну сторону луны

If you were looking at the moon in approaching as it accelerates and slowing down during this trip, you would also see that she swayed from north to south and from west to east in motion known as libration. As a result of this movement, we see part of the sphere, which is usually hidden (about nine percent).

However, we will never see another 41%.

Helium-3 from the moon could solve the energy problems of the Earth

The solar wind is electrically charged and from time to time faces the moon and is absorbed by the rocks of the lunar surface. One of the most valuable gases that are available in this wind and are absorbed by the rocks, it is helium-3, a rare helium-4 isotope (which is commonly used for balloons).

Почему мы видим только одну сторону луны

Helium-3 is perfect for satisfying the needs of the thermalide synthesis reactors followed by the generation of energy.

One hundred tons of helium-3 could satisfy the needs of Earth in energy for a year, if you believe Extreme Tech counts. The surface of the moon contains about five million tons of helium-3, whereas on earth it is only 15 tons.

The idea is as follows: we fly to the moon, we produce helium-3 in the mine, we recruit it in the tanks and send it to Earth. True, it can happen very soon.

Is there some truth in myths about the madness of the full moon?

Not really. The assumption that the brain, one of the watery organs of the human body, is experiencing the influence of the moon, they are rooted in the legends, which are several millennia, during the time of Aristotle.

Since the gravitational attraction of the Moon controls the tides of the earth's oceans, and people consist of 60% of the water (and a brain by 73%), Aristotle and Roman scientist Pliny Senior believed that the moon should have a similar effect on ourselves.

Почему мы видим только одну сторону луны

This idea gave rise to the term "lunar madness", "Transylvanian Effect" (which was widespread in Europe during the Middle Ages) and "lunar insanity". The films of the 20th century were poured into the fire in the fire, tied the full moon with psychiatric disorders, automotive accidents, murders and other incidents.

In 2007, the Government of the British Primorsky Town Brighton ordered to send additional police patrols during the full moon (and in salary days too).

Nevertheless, science says that there is no statistical connection between the behavior of people and the full moon, according to several studies, one of which was held by American psychologists John Rotton and Ivan Kelly. It is unlikely that the moon affects our psyche, rather, it simply adds light to which it is convenient to commit crimes.

Missing lunar stones

In the 70s, Richard Nixon administration distributed stones delivered from the lunar surface during the Apollo-11 missions and Apollo-17, the leaders of 270 countries.

Почему мы видим только одну сторону луны

"We would like to share these stones with all the countries of our world," said Apollo-17 Astronaut Eugene Sernan.

Unfortunately, more than one hundred such stones were missing and, as expected, went on a black market. Working in NASA in 1998, Joseph Guthainz even spent a secret operation called "Lunar Eclipse" to put an end to the illegal sale of these stones.

What was all this noise? A piece of lunar stone with a pea size was estimated at 5 million dollars in the black market.

Video

Sources:

http://www.pravda-tv.ru/2018/06/18/366280/pochemu-luna-ne-vrashhaetsya-i-my-vidim-tolko-odnu-storonu.

https://thequestion.ru/questions/23744/pochemu-govoryat-chto-My-Vidim-Tolko-odnu-Toronu-LUNY-MENYAETSYA-LIMAYAETSYA-VIDIAYA-NAMEMLE-CHAST.

http://wildwildworld.net.ua/why/pochemu-my-vidim-odnu-storonu-luny

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