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Roundel (heraldry) A roundel is a circular charge in heraldry. Roundels are among the oldest charges used in coats of arms, dating from the start of the age of heraldry in Europe, circa 1200–1215. Roundels are typically a solid colour but may be charged with an item or be any of the furs used in heraldry. Roundels are similar to the annulet ...
Andrzej Piotrowski writes that Byzantine churches after Justinian's Hagia Sophia often had gold-covered domes with a ring of windows and that gold, as "the most precious metal and the paradigm of purity, was a sign of light and divinity in the writings of St. Basil and Pseudo-Dionysius. It 'does not rust, decompose, or wear and can be beaten to ...
Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. [1] It is a primary color in the RGB color model and a secondary color (made from magenta and yellow) in the CMYK color model, and is the complementary color of cyan.
Red was the color of the banner of the Byzantine emperors. In Western Europe, Emperor Charlemagne painted his palace red as a very visible symbol of his authority, and wore red shoes at his coronation. [5] : 36–37 Kings, princes and, beginning in 1295, Roman Catholic cardinals began to wear red colored habitus.
Colored gold is the name given to any gold that has been treated using techniques to change its natural color. Pure gold is slightly reddish yellow in color, [1] but colored gold can come in a variety of different colors by alloying it with different elements. Colored golds can be classified in three groups: [2] Alloys with silver and copper in ...
Port with the disembarkation of Cleopatra in Tarsus (1642), by Claude Lorrain, Musée du Louvre, Paris. Light in painting fulfills several objectives, 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 volume ...
The Nika riots ( Greek: Στάσις τοῦ Νίκα, romanized : Stásis toû Níka ), Nika revolt or Nika sedition took place against Byzantine emperor Justinian I in Constantinople over the course of a week in 532 CE. They are often regarded as the most violent riots in the city's history, with nearly half of Constantinople being burned or ...
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. [2] It lies between violet and cyan on the spectrum of visible light. The term blue generally describes colours perceived by humans observing light with a dominant wavelength that’s between approximately ...