Rosulabryum capillare (formerly Bryum capillare) is a species of moss in the Bryaceae family. It has cosmopolitan distribution and is known by the common name capillary threadmoss.
Rosulabryum capillare can use artificial light to grow in places that are otherwise devoid of natural light, such as Crystal Cave in Wisconsin.
A floodlight is a broad-beamed, high-intensity artificial light. It can provide functional area lighting for travel-ways, parking, entrances, work areas, and sporting venues to enable visibility adequate for safe task performance, ornamental lighting for advertising, façades, monuments, or support perimeter security. Floodlights are often used to illuminate outdoor playing fields while an outdoor sports event is being held during low-light conditions. More focused kinds are often used as a stage lighting instrument in live performances such as concerts and plays.
Floodlights may also be used to add effects to buildings at night; this is commonly termed facade lighting or—less precisely—architectural illumination.
The depiction of night in paintings is common in Western art. Paintings that feature a night scene as the theme may be religious or history paintings, genre scenes, portraits, landscapes, or other subject types. Some artworks involve religious or fantasy topics using the quality of dim night light to create mysterious atmospheres. The source of illumination in a night scene—whether it is the moon or an artificial light source—may be depicted directly, or it may be implied by the character and coloration of the light that reflects from the subjects depicted. They are sometimes called nocturnes, or night-pieces, such as Rembrandt's The Night Watch, or the German Romantic Caspar David Friedrich's Two Men Contemplating the Moon of 1819.
In America, James Abbott McNeill Whistler titled works as nocturnes to identify those paintings with a "dreamy, pensive mood" by applying the musical term, and likewise also titled (and retitled) works using other music expressions, such as a "symphony", "harmony", "study" or "arrangement", to emphasize the tonal qualities and the composition and to de-emphasize the narrative content. The use of the term "nocturne" can be associated with the Tonalist movement of the American of the late 19th century and early 20th century which is "characterized by soft, diffused light, muted tones and hazy outlined objects, all of which imbue the works with a strong sense of mood." Along with winter scenes, nocturnes were a common Tonalist theme. Frederic Remington used the term as well for his nocturne scenes of the American Old West.
Low-key photography is a genre of photography consisting of shooting dark-colored scenes by lowering or dimming the "key" or front light illuminating the scene (low-key lighting), and emphasizing natural or artificial light only on specific areas in the frame. This photographic style is usually used to create a mysterious atmosphere, that only suggests various shapes, often graphic, letting the viewer experience the photograph through subjective interpretation and often implies painting objects or the human body with black non-toxic dyes or pigments.
Renaissance and Baroque, represented by different painting styles including sfumato and chiaroscuro used by artists like Leonardo da Vinci and Rubens), tenebroso (it. dark, mysterious) used by artists such as Caravaggio, Rembrandt, Jusepe de Ribera among others, produced paintings in which black was predominant on the canvas and the light often come from only one source to achieve dramatic scenes.