Science

What is wheel? »Its definition and meaning

Anonim

From the Latin "broken" means that rotates or rolls, and is a fundamental machine invented at the end of the period Neolithic, around the fourth millennium BC, which streamlines transportation, revolutionizing its time, to the power little used time after manufacturing of cars.

A wheel is a round-shaped mechanical element whose logic is to rotate around an axis, usually with the mission of driving the movement of a machine or some vehicle, among others, the most emblematic case being that of a car that is mobilizes thanks to four wheels.

The wheel is considered a transcendental invention for the development of the human being. It was devised at the end of the Neolithic period, approximately in the fifth millennium BC. In principle, it was used in ceramics and later its use was extended to the invention of means of transport.

Early wheels were made of wood and had a hole in the middle, which allowed them to be inserted into an axle. A decisive step for the development of the wheel was the inclusion of spokes or beams, which are the bars that rigidly join the center of the wheel with its perimeter region. Radios helped build lighter and therefore faster vehicles.

Iron and bronze were other materials used in the construction of wheels. In the last decades of the 19th century, the first tires were created for wheels, which are rubber covers that cover the wheel and offer the proper adhesion and friction for the pavement.

The concept we have studied has also become the central axis of a series of expressions that are part of our daily lives. This would be the case, for example, of the so-called wheel of fortune, which is a term that refers to the fact that life is continually marked by destiny and chance, so that man alternates between what good and bad in your existence.

A press conference is also called a press conference. This is an expression used in the journalistic field that defines that meeting of media professionals that is carried out from a call made by a public figure. The objective of this meeting is for this character to make a series of statements on a topic of interest and then respond to the questions posed by the reporters present.