Carmine is a pigment of a bright-red color.
Carmine may also refer to:
Indigo is a deep color close to the color wheel blue, as well as to some variants of ultramarine, based on the ancient dye of the same name. The word "indigo" comes from the Latin word indicum, meaning "Indian", as the dye was originally exported to Europe from India.
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 380 to about 750 nanometers. In terms of frequency, this corresponds to a band in the vicinity of 400–790 terahertz. These boundaries are not sharply defined and may vary per individual. Under optimal conditions these limits of human perception can extend to 310 nm (ultraviolet) and 1100 nm . The optical spectrum is sometimes considered to be the same as the visible spectrum, but some authors define the term more broadly, to include the ultraviolet and infrared parts of the electromagnetic spectrum as well.
Indigo children, according to a pseudoscientific New Age concept, are children who are believed to possess special, unusual, and sometimes supernatural traits or abilities. The idea is based on concepts developed in the 1970s by Nancy Ann Tappe, who claimed to have been noticing indigo children beginning in the late 1960s. Her ideas were further developed by Lee Carroll and Jan Tober. The concept of indigo children gained popular interest with the publication of a series of books in the late 1990s and the release of several films in the following decade. A variety of books, conferences, and related materials have been created surrounding belief in the idea of indigo children and their nature and abilities. The interpretations of these beliefs range from their being the next stage in human evolution, in some cases possessing paranormal abilities such as telepathy, to the belief that they are more empathetic and creative than their peers.
The bee-eaters are a group of non-passerine birds in the family Meropidae, containing three genera and thirty species. Most species are found in Africa and Asia, with a few in southern Europe, Australia, and New Guinea. They are characterised by richly coloured plumage, slender bodies, and usually elongated central tail feathers. All have long down-turned bills and medium to long wings, which may be pointed or round. Male and female plumages are usually similar.
Crimson is a rich, deep red color, inclining to purple. It originally meant the color of the kermes dye produced from a scale insect, Kermes vermilio, but the name is now sometimes also used as a generic term for slightly bluish-red colors that are between red and rose. It is the national color of Nepal.
Carmine – also called cochineal, cochineal extract, crimson lake, or carmine lake – is a pigment of a bright-red color obtained from the aluminium complex derived from carminic acid. Specific code names for the pigment include natural red 4, C.I. 75470, or E120. Carmine is also a general term for a particularly deep-red color.
A lake pigment is a pigment made by precipitating a dye with an inert binder, or mordant, usually a metallic salt. Unlike vermilion, ultramarine, and other pigments made from ground minerals, lake pigments are organic. Manufacturers and suppliers to artists and industry frequently omit the lake designation in the name. Many lake pigments are fugitive because the dyes involved are not lightfast. Red lakes were particularly important in Renaissance and Baroque paintings; they were often used as translucent glazes to portray the colors of rich fabrics and draperies.
Indigo is a color between blue and violet.
Carmine color is the general term for some deep red colors that are very slightly purplish but are generally slightly closer to red than the color crimson is. Some rubies are colored the color shown below as rich carmine. The deep dark red color shown at right as carmine is the color of the raw unprocessed pigment, but lighter, richer, or brighter colors are produced when the raw pigment is processed, some of which are shown below.
The rainbow bee-eater is a near passerine bird in the bee-eater family Meropidae.
Indigo carmine, or 5,5′-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by aromatic sulfonation, which renders the compound soluble in water. It is approved for use as a food colorant in the U.S and E.U. to produce a blue color. It has the E number E132. It is also a pH indicator.
The northern carmine bee-eater is a brightly-coloured bird in the bee-eater family, Meropidae. It is found across northern tropical Africa, from Senegal eastwards to Somalia, Ethiopia and Kenya. It was formerly considered to be conspecific with the southern carmine bee-eater which has a carmine coloured throat rather than the blue throat of the northern species.
The southern carmine bee-eater is a species of bee-eater found across sub-equatorial Africa. It was formerly considered conspecific with the closely related northern carmine bee-eater, with the combined species then known as carmine bee-eater.
The rosy bee-eater is a species of bird in the family Meropidae. It is found in Angola, Benin, Burkina Faso, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Nigeria, and Togo.
The blue-throated bee-eater is a species of bird in the bee-eater family. They are found throughout southeast Asia in subtropical or tropical mangrove forests. Their diet consists mostly of bees, wasps, and dragonflies. Blue-throated bee-eaters are small with colorful plumage consisting of a red nape, dark green wings, light green breast, and their signature blue throat. Juvenile plumage contain dark green head and wings and light green breasts, only developing their full plumage in adulthood. They have a rich variety of songs and calls, including longcalls which allow them to communicate long distances in the forest.
Carmine bee-eater may refer to:
The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose solution. However, shaking the bottle oxidizes methylene blue back into its blue form. With further shaking, this color-change cycle can be repeated many times. This experiment is a classic chemistry demonstration that can be used in laboratory courses as a general chemistry experiment to study chemical kinetics and reaction mechanism. The reaction also works with other reducing agents besides glucose and other redox indicator dyes besides methylene blue.
Dyeing is the craft of imparting colors to textiles in loose fiber, yarn, cloth or garment form by treatment with a dye. Archaeologists have found evidence of textile dyeing with natural dyes dating back to the Neolithic period. In China, dyeing with plants, barks and insects has been traced back more than 5,000 years. Natural insect dyes such as Tyrian purple and kermes and plant-based dyes such as woad, indigo and madder were important elements of the economies of Asia and Europe until the discovery of man-made synthetic dyes in the mid-19th century. Synthetic dyes quickly superseded natural dyes for the large-scale commercial textile production enabled by the industrial revolution, but natural dyes remained in use by traditional cultures around the world.
Cherry red may refer to: