Expository Text of the Moon

Expository Text of the Moon

The Moon, our eternal companion

Since time immemorial the Moon has been there, high in the night skies, lighting the path of our species and the species that preceded it. But no one has known it as much and as well as humanity, to the point of having left the imprint of our shoes in the dust of its very surface.

And although it took us centuries to understand that it was not made of cheese and stop attributing our goddesses to it (the Greek Selene, the Hindu Chandra, the Irish Elatha and hundreds of other deities), today we know that the Moon is an indispensable element in the world order that we know and need.

What exactly is the Moon?

The Moon is the only natural satellite of the Earth, which means that it is a celestial body in orbit around our planet, at a distance of 384,000 kilometers from the surface land. At about a quarter the size of Earth (about 3476 kilometers in equatorial diameter), it is the fifth largest satellite in the Solar System and after Io, one of Jupiter's moons, it is the largest dense.

The origin of the Moon is a mystery. There are various hypothesis To explain it, the most widely accepted raises the impact of another planetoid with the Earth at some point in the formation of the Solar System. That is, the Moon may have been a small sister planet to ours, but after the two stars collided about 4 billion years ago, the little planet disappeared and a portion of itself was trapped in the gravity terrestrial and ended up becoming over the millennia on the Moon.

In the night sky, the Moon is the brightest star of all, and can often be seen even during the day. But contrary to what was once thought, the Moon lacks its own brightness: it is a rocky body and not a star. Its brightness is just a reflection of the light that comes from the Sun.

In addition, being synchronized with the movement of the Earth, we always see the same face of the Moon (while the other, known as the “dark side”, always points towards space), although not always complete: the Moon has “phases”, moments in which it shows more or less whole in our eyes, depending on the cone of shadow that the Earth casts on it at different moments of its journey orbital.

Since 2009 we also know that it has a percentage significant amount of frozen water at the bottom of some craters. This has been considered a promising find for future plans for lunar colonization and interplanetary travel.

The benefits of the presence of the Moon

Between the Moon and our planet there is a small physical system that has important repercussions on the life of our planet. In fact, its simple presence stabilizes the movements of our planet, making them more tame and regular, which leads to greater climatic stability. Therefore, it is possible that without the Moon life would have taken longer to occur.

In addition, the gravity of the Moon affects the mass of water that covers the earth's surface, causing the rise and fall of the water, which we have baptized as tides: high tide or high tide, and low tide or low tide. Another consequence of this phenomenon is that in its movement the rubbing of the water mass against the continents tends to decrease the Earth's rotation, which affects the angular momentum of the Earth-Moon physical system and causes the latter to move away very slowly, at an annual rate of 38 millimeters, according to the most recent measurements with To be.

Finally, there are the eclipses: the intrusion of the Moon between the Earth and the Sun, which partially blocks the light that falls on the planet (solar eclipse); or the Earth between the Moon and the Sun, hiding the satellite in its shadow (lunar eclipse). These astronomical phenomena, in their three possible variants (total, partial and penumbral) have been observed by humanity since time immemorial and associated with omens, prophecies and divine announcements of different type.

The Moon in culture

The presence of the Moon in different human cultures has never been less. Together with the Sun, they constitute the stars to which the greatest cult has been rendered in the religions ancient, and that play a leading role in cosmogony and myths about the origin of the universe. Traditionally, the Moon has been identified with the universal feminine aspects (and the Sun, on the other hand, with the masculine ones), perhaps because the calendar made from the phases of the moon tends to coincide with the menstrual cycle of women (28 days).

Be that as it may, feminine divinities were almost always associated with the Moon, who were considered elusive, mysterious, always ready to concealment, and with a supernatural bond over the animals. The tradition He says that wolves howl at the moon, for example, or that on the full moon certain men go mad or turn into animals.

References:

• "Expository text" in Wikipedia.
• "Moon" in Wikipedia.
• "Curiosities about the Moon" in Very interesting.
• "The subtle influence of the Moon on the Earth's climate (and why our satellite moves a little further every year)" in BBC News World.
• "Earth’s Moon" in POT.
• “Moon (Earth’s satellite)” in The Encyclopaedia Britannica.

What is an expository text?

A expositive text It is a type of writing whose mission is to provide the reader, in an objective way, specific and specific information on a specific topic. In this it differs from other textual types, such as argumentative text or the narrative text, since the expository text does not contain or arguments or opinions in favor of a perspective, nor any kind of story or narration.

Expository texts focus above all on information, so they are usually impersonal and rigorous in their approach to the subject. They are texts in which data, observations, textual citations and other resources predominate to expose the reader to an aspect of reality.

To write an expository text we must first of all document ourselves on the desired topic and then reproduce the ideas, of the most general to the most specific (or vice versa), without involving our own points of view on the matter, but adhering to the strictly informative.

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