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Byzantium. The color Byzantium is a particular dark tone of purple. It originates in modern times, and, despite its name, it should not be confused with Tyrian purple ( hue rendering ), the color historically used by Roman and Byzantine emperors. The latter, often also referred to as "Tyrian red", is more reddish in hue, and is in fact often ...
The dye is an organic compound of bromine (i.e., an organobromine compound), a class of compounds often found in algae and in some other sea life, but much more rarely found in the biology of land animals. This dye is in contrast to the imitation purple that was commonly produced using cheaper materials than the dyes from the sea snail.
Shades of purple. There are numerous variations of the color purple, a sampling of which is shown below. In common English usage, purple is a range of hues of color occurring between red and blue. [1] However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among ...
Byzantine flags and insignia. For most of its history, the Eastern Roman (Byzantine) Empire did not use heraldry in the Western European sense of permanent motifs transmitted through hereditary right. [1] Various large aristocratic families employed certain symbols to identify themselves; [1] the use of the cross, and of icons of Christ, the ...
The frontispiece of the Vienna Dioscurides shows a set of seven famous physicians.The most prominent man in the picture is Galen, who sits on a folding chair.. Scientific scholarship during the Byzantine Empire played an important role in the transmission of classical knowledge to the Islamic world and to Renaissance Italy, and also in the transmission of Islamic science to Renaissance Italy.
The Byzantine emperor Constantine VII Porphyrogenitus in a 945 carved ivory. Traditionally, born in the purple [1] (sometimes "born to the purple") was a category of members of royal families born during the reign of their parent. This notion was later loosely expanded to include all children born of prominent or high-ranking parents. [2]
The dark markings on both birds are due to the black pigment eumelanin. Biological pigments, also known simply as pigments or biochromes, [1] are substances produced by living organisms that have a color resulting from selective color absorption. Biological pigments include plant pigments and flower pigments.
Byzantine illuminated manuscripts. 10th-century illumination in the Paris Psalter which depicts the life of King David, traditionally regarded as the author of the Book of Psalms. In total there are 14 images throughout the psalter. Byzantine illuminated manuscripts were produced across the Byzantine Empire, some in monasteries but others in ...
In 1996, James Allan Stewart Evans suggested that the name was a reference to the color of the whale's skin. Porphyra meant a deep purple color in Greek and Porphyrios might have had dark-wine colored skin. This was further supported by John K. Papadopoulos and Deborah Ruscillo in 2002, who believed the name simply meant "purple".
Purple bacteria grown in Winogradsky column. Purple bacteria or purple photosynthetic bacteria are Gram-negative proteobacteria that are phototrophic, capable of producing their own food via photosynthesis. [1] They are pigmented with bacteriochlorophyll a or b, together with various carotenoids, which give them colours ranging between purple ...