﻿ Definition of axis - What it is, Meaning and Concept - I want to know everything - 2020

# Axis

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The term axis , which comes from Latin (axis or ax) has multiple uses, definitions and applications. In its origins it represented the bar that linked the wheels of the carts and, later, the imaginary line that crosses the planet Earth from pole to pole.
In the field of mechanics , for example, an axis is considered as a constructive piece which is useful when steer rotation shift of an element or a group of parts, such as when working on a wheel or gear.

The axles of a vehicle Instead, they represent imaginary lines of transverse direction in front of which the wheels rotate when the car moves straight ahead. In vehicles that have wheels on both sides, the axle is the transverse line that allows joining the centers of two of them.

In math Likewise, the axes allow us to locate a geometric figure in space, and then transform it according to our needs. By convention, the horizontal axis is referred to with the letter X, the vertical axis with the letter Y, and the one that represents the depth, with the Z. Without the existence of this concept that serves as the basis for countless calculations, being the rotation the most popularly associated with him, not only mathematics would be a much less complex and comprehensive science, but the impact would reach the entertainment field, since there would be no video games, animated films as well as most special effects.
Among the known types of axes, we find those of symmetry. These imaginary lines represent straight lines that cut a figure in such a way that the vertices that are located on each side have an equivalent of the other. Simply put, an axis of symmetry cuts an object into two identical parts. Once again, we usually watch video effects that are based on this principle, and that generate kaleidoscopic images.

He concept Rotation is very complex and there are several ways to get the same result. Basically, an axis used to perform this calculation serves as a reference to change the orientation of a figure or object without altering its shape. In everyday life, we are accustomed to the fact that matter is not deformed and we do not need technical knowledge to, for example, turn an apple that we hold with one hand. But if we were to represent that simple action and the consequent transformation of the fruit into numbers, everything would be more complex. First, we would need to convert the apple to a series of points or vertices and place them in an axis system. Its position could not be random, since the result obtained would depend on it and we would have to take this collection for each of the 3 axes. To give a simple example, if we wanted the apple to rotate to the right and not move when doing so, we should place it in such a way that the vertical axis would cut it through its exact center.
This term is also relevant in the field of anatomy , where it refers to the second vertebra of the neck, which acts as an axis in the rotation movement of the human being's head. Other related uses divide the body into several hemispheres: one cuts it vertically from head to toe (the cranio-caudal axis), another horizontally (the lateral-lateral) and one that crosses the body from back to front (the axis ventro-dorsal).

It should be noted that, in the field of politics , the concept of Axis (which is usually capitalized) refers to certain alliances between two or more state . There the principles and norms that govern community life are regulated, according to the social framework of a given nation. It establishes the necessary organization for a correct and balanced exercise of power. In the Second World War , for example, the Axis was formed between Italy , Germany and Japan to fight against the Allies and that arose from an understanding between Hitler and Mussolini. On the other hand, George W. Bush he referred to Axis of evil in relation to a supposed alliance between North Korea , Iraq and Iran .

Other related meanings are the cultural and social axis. The first refers to a projection that ensures a given nation to grow in a way that does not lose its past, its customs, everything that has given it identity. In the second case, it will seek to preserve what is considered key in a society and that in general is the family , pointing to the best possible quality of life of its inhabitants.

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