general

definition of penumbra

There is talk of gloom when in the environment in question there is a weak shadow between light and darkness and that with the naked eye prevents us from seeing where one begins and where the other ends. “The house is in twilight, please can you turn on some light. Dinner with Mario was very romantic, we had dinner in a restaurant that overlooked the lake and had lighting with a predominance of twilight.”

Weak shadow that does not allow to identify things and people well because there is not full light

Although the semi-darkness tends to cause fear and displeasure for many people, and for example they want to get out of it, either by leaving that semi-dark place or by turning on a light that takes them out of it, we cannot ignore that for some people and contexts it Penumbra is presented as an excellent option to find privacy, especially in cases such as the one indicated in the example above, of a dinner or romantic meeting between two lovers where the low lighting, that is, the semi-darkness, invites the privacy that many Sometimes it demands romance.

Technically, in a twilight setting, the light source is partially blocked, unlike in the dark, in which the light source is totally blocked. It is because of this difference that in the semi-darkness we can see some areas of light, shapes and colors, although, not entirely clear, that is, the semi-darkness is never total darkness.

For example, if the living room of the house is in darkness and someone is on the sofa resting, it will be possible that we notice that there is a figure lying on it, however, we will not be able to distinguish who it is, since the semi-darkness does not allows you to notice significant details.

Applications

In the plastic arts, the performing arts, in cosmetology and in photography, a technique that consists of creating brighter areas and others of shadow or penumbra is used a lot, that is, lighter tones are applied and others darker, with various creative purposes or argumentative, as appropriate.

One of the most popular synonyms for this concept is shadow.

Astronomy: partial shadow that will exist between dark and illuminated spaces such as eclipses

Meanwhile, at the request of the Astronomy and more precisely at the behest of one of the phenomena that it addresses, the eclipses, the gloom is the partial shade that will exist between entirely dark spaces and entirely illuminated ones.

Eclipses can be of the sun or of the moon and it is a phenomenon in which the light that comes from a celestial body is blocked by another that will be considered as the eclipsing body.

Eclipses of the sun and moon happen when the sun and the moon align with the planet earth in a certain way, happening at times of new or full moons.

The solar eclipse occurs when the moon hides the sun from the view of the earth, occurring only during the new moon. While the lunar eclipse is an event that will happen when the earth intervenes between the sun and the moon causing a cone of shadow that will darken the moon. For the eclipse of these three bodies to occur, their alignment is necessary.

Eclipses can be anticipated through the use of technology, with computer programs designed to accurately calculate the positions of bodies and then draw the conclusions that inform us of the dates of their succession.

And an old form that is the annotation of the cyclical repetition of these phenomena.

Other uses

In addition, outside of the strictly referential, the word Penumbra has been the name of a French musical group, enrolled in gothic metal, founded in 1996 and that he has edited three albums.

And in the field of entertainment, penumbra has been the name of a video game saga for computers that began in 2007 and consists of: Penumbra: Overture, Penumbra Black Plague and Penumbra: Requiem.

$config[zx-auto] not found$config[zx-overlay] not found