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Limelight (also known as Drummond light or calcium light) [1] is a non-electric type of stage lighting that was once used in theatres and music halls. An intense illumination is created when a flame fed by oxygen and hydrogen is directed at a cylinder of quicklime (calcium oxide), [2] due to a combination of incandescence and candoluminescence ...
Port with the disembarkation of Cleopatra in Tarsus (1642), by Claude Lorrain, Musée du Louvre, Paris. Light in painting fulfills several objectives like, both plastic and aesthetic: on the one hand, it is a fundamental factor in the technical representation of the work, since its presence determines the vision of the projected image, as it affects certain values such as color, texture and ...
The flame does not provide much light itself, and so a more heat-efficient non-luminous flame is preferred. Unlike simple soot, a mantle uses rare-earth elements to provide a bright white glow; the colour of the glow comes from the spectral lines of these elements, not from simple black-body radiation.
John the Baptist (John in the Wilderness), by Caravaggio, 1604, in the Nelson-Atkins Museum of Art, Kansas City. Tenebrism, from Italian tenebroso ('dark, gloomy, mysterious'), also occasionally called dramatic illumination, is a style of painting using especially pronounced chiaroscuro, where there are violent contrasts of light and dark, and where darkness becomes a dominating feature of the ...
Researchers from varying fields – among which art history, conservation, and conservation science – collaborate in an interdisciplinary manner to gain “a thorough understanding of the physical object in terms of original intention, choice of materials and techniques as well as the context in and for which the work was created, its meaning ...
No, the incandescence can only be seen in the tiny overexposed sparklets. There is no perfect timing involved, just opening up the shutter and blowing some iron filings into the flame. The relation between temperature and color does not become clear in the picture and the flame having such a prominent role in the frame could lead to ...
Mark making is the interaction between the artist and the materials they are using. [1] It provides the viewer of the work with an image of what the artist had done to create the mark, reliving what the artist had done at the time. [1] Materiality is the choice of materials used and how it impacts the work of art and how the viewer perceives it ...
As the definition does not fully describe the phenomenon, quantum mechanics is employed where it is defined as there is no change in spin multiplicity from the state of excitation to emission of light. [2] Phosphorescence, traditionally defined as persistent emission of light after the end of excitation. As the definition does not fully ...