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Brake , from the Latin term frēnum, is the mechanism that allows a device stop or slow down . The brakes are responsible for transforming the Kinetic energy of an object (such as a car) in job or hot .

For example: "The accident occurred because the Fiat failed the brakes and its driver could not stop the vehicle", "Tomorrow I'm going to take the car to the mechanic to check the brakes", "I think the bicycle brakes work badly".

Using this term that concerns us, it must be established that in some countries there is also what is known as the brake belt. This is neither more nor less than the material used to carry out what is the lining of the shoes of the mentioned brakes. A material that is usually formed by metallic threads and asbestos.

There are various types of brake. The friction brakes they are those that act, precisely, through forces of friction They have a fixed element that puts pressure on the object to be decelerated. Within this group, it is possible to distinguish between drum brakes (The friction is produced by pads that make a pressure on the inside of a rotating drum that is attached to the axle or wheel), belt brakes (with a flexible band that exerts tension on a cylinder integral with the axis to be manipulated), the rim brakes (usual on bicycles) and disc brakes (they act on the rotation of the wheel).

Other kinds of brakes are the electric brakes (create electric current for braking), the mechanical brakes (transmit the force through cables or levers), the pneumatic brakes (which work with compressed air) and hydraulic brakes (with a liquid that is transmitted via pistons).

In the automobile field, it is necessary to underline the prominence that the so-called ABS brakes have been for a few decades, which are an anti-lock system for car wheels. Thanks to it, what is achieved is that during the braking process of those tires get a better grip. In this way, it is strongly committed to the safety of all the individuals that go inside these vehicles.

Likewise, we must not ignore the existence of a multitude of expressions that we use and that use the term we are now dealing with. In this way we find, for example, with "running without brakes" that comes to determine that a person in question is living at a dizzying pace that is making him enjoy all kinds of pleasures.

Much more colloquial is the expression "downhill and without brakes." It is used when you want to express that either a person or a situation is at a point where everything seems to be headed dangerously, there is no going back, it goes very fast and seems to indicate that the results are going to be dire.

In some countries, it is known as brakes dental device which allows to correct the deviation of the teeth: “I use brakes since the age of fourteen”, "The dentist recommended that I use brakes".

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