What is opening?

What Does opening Mean

The verb to open refers to making something stop being closed or covered, to reveal what is hidden or to uncover something. The notion of openness is linked to this action, although it can also mention other things.

A crack a crack a crack or hole may also be referred to as openings: "We'll have to make an opening in the wall to pass the pipes" , "The blast left a huge hole in the ceiling" , "Please, get a little cement so we can cover the opening .
In phonetics , the opening is linked to how the organs responsible for phonation open and expand when allowing air to pass through . Depending on the sound to be emitted, the aperture will be larger or smaller.

Those sounds that can be pronounced without the intervention of the speaking organs are made with a much larger opening; In the case of our language, it happens with the vowels, where the sound of the A is made with an opening greater than that of the rest of the vowels, opposite to that of the I.
This term is opposed to that of closure, which refers to the contraction of the speaking organs to allow air to pass through and produce a specific sound.
Opening or opening?
This term gives rise to a lot of confusion as it closely resembles another: "openness." Next we will try to establish the differences between the two, in order to know in the future when to use each one because, despite what many say, these two concepts are not interchangeable.
If we are guided by the definitions that both words receive in the RAE dictionary, we can say that although both refer to the action of opening something, there are certain differences. Openness is more advisable to talk about that action itself, to refer to an attitude of tolerance in front of a given situation (openness to sexual diversity), to the action of starting a business (opening of premises) and also to speak from the moment in which, through a certain mechanism, a gap is opened (diaphragm opening).
Apertura, on the other hand, is more indicated to refer to a cleft or hole that has already been produced and is permanent, such as a wide space in the middle of two mountains (opening between mountains) or a hole through which light or air passes (opening of a window).
In photography there is the diaphragm aperture , which many interchangeably call aperture (considering that the concept comes from the shutter ). However, the correct one is opening because we are talking about a hole that can be opened mechanically but is not always in that state. To better understand this we can clarify that in the case of a telescope, the hole through which it is observed is always open, which is why it is called an opening. Unfortunately and despite this clear difference in the meanings of the terms, it is necessary to point out that in the world of photography the wrong term is used more frequently.

Given the great contradictions that these terms generate, it is normal to find, even in important dictionaries, that for optics , the aperture is the diameter of a lens, which establishes what the angle of a light beam will be when focused on the image plane. , despite the fact that in this case we are also talking about openness.
Finally, this term should also be differentiated from that of overture , which refers to a piece of music that serves as an introduction to a lyrical composition, be it an opera, an oratorio or any other composition of this style.

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