Parallel, word from the Greek parallelos, whose word was produced from the preposition "para" and "allelos" that represents something that is next to or that has a relationship with something else. There are many areas in which this word is implemented. In biology, parallelism is an evolutionary phenomenon caused within a clade (branches of the phylogenetic tree), this phenomenon is obtained independently and manifests itself in the same character and in two organisms, causing a change.
In geometry, it is called parallel to a line or equidistant plane (same distance), which if it is prolonged cannot be connected, the parallel lines contain equal slopes. Within the geometry there are also parallel curves which are always at the same distance and in no case intercept each other.
Parallel in geography, refers to those imaginary circles that are perpendicular to the axis of the earth, have a 360 ° circumference and have an East-West direction, each of the points located in the parallels measure the same latitude. One of the major parallels is El Ecuador (°), which divides the earth into two equal hemispheres, other important parallels are; Tropic of Cancer and the Arctic located in the northern hemisphere, Tropic of Capricorn and Antarctic Circle located in the southern hemisphere.
In relation to electricity, mention is made of the word parallel in certain circuits that have a connection where the input and output ports coincide with each other. The circuits are connected and the current is distributed towards the inputs while adding their output currents.
Among the uses of the word parallel, we find in gymnastics that the parallel bars refer to certain apparatuses formed by two bars 150 cm long and 195 cm high, and are separated by 42 or 52 cm, the parallel bars are used in competition and the gymnast performs exercises, acrobatic pirouettes, turns and flights.