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Sepia (color)
Sepia is a reddish-brown color, named after the rich brown pigment derived from the ink sac of the common cuttlefish '' Sepia''. The word ''sepia'' is the Latinized form of the Ancient Greek words , , cuttlefish. In the visual arts Sepia ink was commonly used for writing in Greco-Roman civilization. It remained in common use as an artist's drawing material until the 19th century. In the last quarter of the 18th century, Professor Jakob Seydelmann of Dresden developed a process to extract and produce a concentrated form of sepia for use in watercolors and oil paints. Sepia toning is a chemical process used in photography which changes the appearance of black-and-white prints to brown. The color is now often associated with antique photographs. Most photo graphics software programs and many digital cameras include a sepia tone filter to mimic the appearance of sepia-toned prints. Other uses In the 1940s in the United States, music intended for African American audien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Codex Atlanticus - 000V-26
The codex (: codices ) was the historical ancestor format of the modern book. Technically, the vast majority of modern books use the codex format of a stack of pages Bookbinding, bound at one edge, along the side of the text. But the term ''codex'' is now reserved for older manuscript books, which mostly used sheets of vellum, parchment, or papyrus, rather than paper. By convention, the term is also used for any Aztec codex (although the earlier examples do not actually use the codex format), Maya codices and other Pre-Columbian era, pre-Columbian manuscripts. Library practices have led to many European manuscripts having "codex" as part of their usual name, as with the Codex Gigas, while most do not. Modern books are divided into paperback (or softback) and those bound with stiff boards, called hardbacks. Elaborate historical bindings are called treasure bindings. At least in the Western world, the main alternative to the paged codex format for a long document was the continuo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photography
Photography is the visual arts, art, application, and practice of creating images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and mass communication. A person who operates a camera to capture or take Photograph, photographs is called a photographer, while the captured image, also known as a photograph, is the result produced by the camera. Typically, a lens is used to focus (optics), focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed Exposure (photography), exposure. With an electronic image sensor, this produces an Charge-coupled device, electrical charge at each pixel, which is Image processing, electro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pigments
A pigment is a powder used to add or alter color or change visual appearance. Pigments are completely or nearly solubility, insoluble and reactivity (chemistry), chemically unreactive in water or another medium; in contrast, dyes are colored substances which are soluble or go into solution at some stage in their use. Dyes are often organic compounds whereas pigments are often inorganic compound, inorganic. Pigments of prehistoric and historic value include ochre, charcoal, and lapis lazuli. Economic impact In 2006, around 7.4 million tons of inorganic chemistry, inorganic, organic chemistry, organic, and special pigments were marketed worldwide. According to an April 2018 report by ''Bloomberg Businessweek'', the estimated value of the pigment industry globally is $30 billion. The value of titanium dioxide – used to enhance the white brightness of many products – was placed at $13.2 billion per year, while the color Ferrari red is valued at $300 million each yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shades Of Brown
Shades of brown can be produced by combining red, yellow, and black pigments, or by a combination of orange and black—illustrated in the color box. The RGB color model, that generates all colors on computer and television screens, makes brown by combining red and green light at different intensities. Brown color names are often imprecise, and some shades, such as beige, can refer to lighter rather than darker shades of yellow and red. Such colors are less saturated than colors perceived to be orange. Browns are usually described as light or dark, reddish, yellowish, or gray-brown. There are no standardized names for shades of brown; the same shade may have different names on different color lists, and sometimes one name (such as beige or puce) can refer to several very different colors. The X11 color list of web colors has seventeen different shades of brown, but the complete list of browns is much longer. Brown colors are typically desaturated shades of reds, oranges, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopod Ink
Cephalopod ink is a dark-coloured or luminous ink released into water by most species of cephalopod, usually as an escape mechanism. All cephalopods, with the exception of the Nautilidae and the Cirrina (deep-sea octopuses), are able to release ink to confuse Predator, predators. The ink is released from the ink sacs (located between the gills) and is dispersed more widely when its release is accompanied by a jet of water from the Siphon (molluscs)#The hyponome of cephalopods, siphon. Its dark colour is caused by its main constituent, melanin. Each species of cephalopod produces slightly differently coloured inks; generally, octopuses produce black ink, squid ink is blue-black, and cuttlefish ink is sepia (color), a shade of brown. A number of other aquatic molluscs have similar responses to attack, including the gastropod clade known as sea hares. Properties and chemistry Cephalopod ink contains a number of chemicals in a variety of different concentrations, depending on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science-fiction
Science fiction (often shortened to sci-fi or abbreviated SF) is a genre of speculative fiction that deals with imaginative and futuristic concepts. These concepts may include information technology and robotics, biological manipulations, space exploration, time travel, parallel universes, and extraterrestrial life. The genre often explores human responses to the consequences of projected or imagined scientific advances. Science fiction is related to fantasy (together abbreviated SF&F), horror, and superhero fiction, and it contains many subgenres. The genre's precise definition has long been disputed among authors, critics, scholars, and readers. Major subgenres include ''hard'' science fiction, which emphasizes scientific accuracy, and ''soft'' science fiction, which focuses on social sciences. Other notable subgenres are cyberpunk, which explores the interface between technology and society, and climate fiction, which addresses environmental issues. Precedents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrei Tarkovsky
Andrei Arsenyevich Tarkovsky (, ; 4 April 1932 – 29 December 1986) was a Soviet film director and screenwriter of Russian origin. He is widely considered one of the greatest directors in cinema history. Works by Andrei Tarkovsky, His films explore spiritual and metaphysics, metaphysical themes and are known for their Slow cinema, slow pacing and long takes, dreamlike visual imagery and preoccupation with nature and memory. Tarkovsky studied film at the All-Union State Institute of Cinematography under filmmaker Mikhail Romm and subsequently directed his first five features in the Soviet Union: ''Ivan's Childhood'' (1962), ''Andrei Rublev (film), Andrei Rublev'' (1966), ''Solaris (1972 film), Solaris'' (1972), ''Mirror (1975 film), Mirror'' (1975), and ''Stalker (1979 film), Stalker'' (1979). After years of creative conflict with State Committee for Cinematography, state film authorities, he left the country in 1979 and made his final two films—''Nostalghia'' (1983) and ''Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sepia (magazine)
''Sepia'' was a photojournalistic magazine featuring articles based primarily on achievements of African Americans. The magazine was founded in 1946 as ''Negro Achievements'' by Horace J. Blackwell, an African-American clothing merchant of Fort Worth, Texas. He had already founded ''The World's Messenger'' in 1942. George Levitan, a Jewish American plumbing merchant in Fort Worth, bought Blackwell's magazines and Good Publishing Company (aka Sepia Publishing) in 1950. He changed the magazine's name gradually; in 1954 he named it ''Sepia,'' and published it until his death in 1976. He changed the name of ''Messenger'' to ''Bronze Thrills'' and had success with that for some time as well, also publishing black-audience magazines ''Hep'' and ''Jive''. After Levitan's death, ''Sepia'' was bought by Beatrice Pringle, who had been part of Blackwell's founding editorial team. She continued it until 1983, closing it despite respectable circulation. It was always overshadowed by ''Ebony ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magazine
A magazine is a periodical literature, periodical publication, print or digital, produced on a regular schedule, that contains any of a variety of subject-oriented textual and visual content (media), content forms. Magazines are generally financed by advertising, newsagent's shop, purchase price, prepaid subscription business model, subscriptions, or by a combination of the three. They are categorised by their frequency of publication (i.e., as weeklies, monthlies, quarterlies, etc.), their target audiences (e.g., women's and trade magazines), their subjects of focus (e.g., popular science and religious), and their tones or approach (e.g., works of satire or humor). Appearance on the cover of print magazines has historically been understood to convey a place of honor or distinction to an individual or event. Term origin and definition Origin The etymology of the word "magazine" suggests derivation from the Arabic language, Arabic (), the broken plural of () meaning "depot, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhythm And Blues
Rhythm and blues, frequently abbreviated as R&B or R'n'B, is a genre of popular music that originated within African American communities in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to African Americans, at a time when "rocking, jazz based music ... [with a] heavy, insistent beat" was starting to become more popular. In the commercial rhythm and blues music typical of the 1950s through the 1970s, the bands usually consisted of a piano, one or two guitars, bass, drums, one or more saxophones, and sometimes background vocalists. R&B lyrical themes often encapsulate the African-American history and experience of pain and the quest for freedom and joy, as well as triumphs and failures in terms of societal racism, oppression, relationships, economics, and aspirations. The term "rhythm and blues" has undergone a number of shifts in meaning. In the early 1950s, it was frequently applied to blues records. Starting i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Race Music
African-American music is a broad term covering a diverse range of musical genres largely developed by African Americans and their culture. Its origins are in musical forms that developed as a result of the enslavement of African Americans prior to the American Civil War. It has been said that "every genre that is born from America has black roots." White slave owners subjugated their slaves physically, mentally, and spiritually through brutal and demeaning acts. Some White Americans considered African Americans separate and unequal for centuries, going to extraordinary lengths to keep them oppressed. African-American slaves created a distinctive type of music that played an important role in the era of enslavement. Slave songs, commonly known as work songs, were used to combat the hardships of the physical labor. Work songs were also used to communicate with other slaves without the slave owner hearing. The song " Wade in the Water" was sung by slaves to warn others trying t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
