The word axis It has different uses and applications depending on the context in which it is used.
At the behest of the mechanics, for example, an axis se is the constructive element whose objective is to guide the rotational movement, either of a piece or of a set of piecessuch as a wheel or gear.
Meanwhile, it may be that the axis is fixed, that is, without the possibility of turning, or failing that, it is part of a bearing system, in which the part will rotate around the axis.
Secondly, in a vehicle, the axes are those imaginary lines of transverse direction about which the wheels turn when the vehicle is moving straight ahead. On vehicles with wheels on each side, the axle is the cross line connecting the centers of two wheels.
On the other hand, in mathematics, the axis is a straight line about which a geometric figure can rotate. The aforementioned line is also often called the axis of rotation.
For his part, the axis of symmetry is a line about which a figure will be symmetric. The concept is also applied to the axes or lines of a function. The horizontal axis is designated as x and the vertical axis as y.
In the field of anatomy, the word axis is used with recurrence, since it designates the second neck vertebra, which will just act as an axis in the rotational movement of the head.
And in the field of politics also the word axis turns out to present an extended use due to the fact that it designates the alliances that some States make among themselves. For example, during Second World War, Italy, Germany and Japan they formed an axis.
And in ordinary language to that primary idea or issue, as well as the person or element that is considered as the pillar and center of something, on which the rest will purposely revolve, it is designated by the term axis. The axis of the speech was the political apathy that exists in the community. Juan is my axis, without him I cannot act or make decisions.
