The Greek term kýlindros derived in Latin cylindrus, which came to our tongue What cylinder. This Greek noun was used, at first, to refer to a transport roller to carry large bundles. However, with the passage of time it also began to be used as a synonym for rolled book or documentary-type roll.
It’s about a geometric body which is formed from the parallel displacement of a generatrix (straight) along a directive (flat curve). When the generatrix is perpendicular to a directrix that is a circle, a straight and circular cylinder.
Specifically, we can determine that it is formed by a rectangle, which comes to act as the lateral area of that figure, and by two circles that are the bases of it.
When working with the cylinder, you can know from what its axis is to calculate its height through determining the radius. This is the length from the shaft to the end of the cylinder.
By antonomasia, the idea of cylinder generally refers to these straight and circular cylinders. its surface It is formed by the generatrices that house all the points of the guideline.
There are numerous structures and parts that, due to their shape, are known as cylinders. The internal combustion engines, for example, they have cylinders through which the piston displacement. The fuel that is in the combustion chamber, when the engine is running, generates an explosion that produces the linear displacement of the piston located inside the cylinder. The movement is transmitted to a connecting rod, which is linked to the piston and the crankshaft. The crankshaft transforms linear motion into circular or rotary motion.
On wind musical instruments like certain tubas and horns, the cylinder – also called rotary valve– works like a wrench or a piston: when tightened, it changes the height of the sound.
The hermetic container that contains volatile liquids and gases; the piece that allows the movement of the plunger of certain machines; the drum of a machinery of watch; and the printing element that, when rotating on the mold, makes the impression, are also called a cylinder.
In the same way, we cannot forget that CILINDRO is the name of a Spanish company created in 1986 that specializes in what is material and accessories for both communities and offices. Today it is a leading company in its sector.
In the sports field, the term that now occupies us is also used. Specifically, it should be known that the Presidente Perón soccer stadium that exists in Avellaneda (Argentina) is also known as El Cilindro de Avellaneda.