In answer to a New York Times query on what is fame ( `` Thoughts On Fame '', October 23, 1960 ), Carl said: `` Fame is a figment of a pigment.

The skin colour of amphibians is produced by three layers of pigment cells called chromatophores.

Unlike bony fish, there is no direct control of the pigment cells by the nervous system, and this results in the colour change taking place more slowly than happens in fish.

One of the defining characteristics of the order is the presence of phytomelan, a black pigment present in the seed coat, creating a dark crust.

Acrylic paint is fast drying paint containing pigment suspension in acrylic polymer emulsion.

As linseed oil has a smaller molecule than acrylic, oil paint is able to absorb substantially more pigment.

Albinism ( from Latin albus, " white "; see extended etymology, also called achromia, achromasia, or achromatosis ) is a congenital disorder characterized by the complete or partial absence of pigment in the skin, hair and eyes due to absence or defect of tyrosinase, a copper-containing enzyme involved in the production of melanin.

Development of the optical system is highly dependent on the presence of melanin, and the reduction or absence of this pigment in albinistic individuals may lead to

In albinistic subjects, the iris does not have enough pigment to block the light, thus the decrease in pupil diameter is only partially successful in reducing the amount of light entering the eye.

All snails in the family Planorbidae have the red oxygen transport pigment haemoglobin, but this is especially apparent in albino animals.

Black is the lack of all colors of light, or an exhaustive combination of multiple colors of pigment.

The leopard danio, previously known as Danio frankei, is a spotted colour morph of the zebrafish which arose due to a pigment mutation.

The mutant lacks black pigment in its melanocyte s because it is unable to synthesize melanin properly.

It is also used as a lubricant and a pigment, as a molding material in glass manufacture, in electrodes for dry batteries and in electroplating and electroforming, in brushes for electric motors and as a neutron moderator in nuclear reactors.

Carbon black is used as the black pigment in printing ink, artist's oil paint and water colours, carbon paper, automotive finishes, India ink and laser printer toner.

Chlorophyll ( also chlorophyl ) is a green pigment found in cyanobacteria and the chloroplasts of algae and plants.

Carotene is an orange photosynthetic pigment important for photosynthesis.

In contrast with a dye, a pigment generally is insoluble, and has no affinity for the substrate.

The medium is the means by which ink, pigment or color are delivered onto the drawing surface.

Water is used as the vehicle for the pigment and, with the setting of the plaster, the painting becomes an integral part of the wall.

Buon fresco technique consists of painting in pigment mixed with water on a thin layer of wet, fresh ( hence the name ) lime mortar or plaster, for which the Italian word for plaster, intonaco, is used.

Because of the chemical makeup of the plaster, a binder is not required, as the pigment mixed solely with the water will sink into the intonaco, which itself becomes the medium holding the pigment.

The pigment is then absorbed by the wet plaster ; after a number of hours, the plaster dries and reacts with the air: it is this chemical reaction which fixes the pigment particles in the plaster.

Photographs taken with infra-red light through night vision devices always show very bright pupils because, in the dark, the pupils are fully dilated and the infra-red light is not absorbed by any ocular pigment.

When this light encounters a pigment, parts of the spectrum are absorbed by the chemical bonds of conjugated systems and other components of the pigment.

With this technology, light is directed at the hair and is absorbed by dark pigment, resulting in the destruction of the hair follicle.

Light entering at an angle passes through the thin cross-section of the photoreceptor cell, with only a tiny chance of exciting it, and is absorbed by the pigment cell, before it can enter a neighboring ommatidium.

The high levels of oleic acid makes it particularly well absorbed by human skin, and it contains over 100 known vitamins, minerals and antioxidants, including gamma oryzanol, which is believed to impact pigment development.

All of the receptors contain the pigment photopsin, with variations in its conformation causing differences in the optimum wavelengths absorbed.

The pigment is mixed with water on a small layer of wet lime mortar or plaster, where it is later absorbed.

Most of the light is absorbed by melanin pigments in the pigment epithelium just behind the photoreceptors, and causes burns in the retina.

The lightfastness depends not only on the properties of the organic azo compound, but also on the way they have been absorbed on the pigment carrier.

The initial application of any paint or varnish is similarly absorbed into the substrate, but because stains contain lower amounts of binder, the binder from a stain resides mainly below the surface while the pigment remains near the top or at the surface.

In all the talk of feudal rights, the knights and bishops must never forget the woolworkers, nor was it easy to do so, for all along the road to Italy they passed the Florentine pack trains going home with their loads of raw wool from England and rough Flemish cloth, the former to be spun and woven by the Arte Della Lana and the latter to be refined and dyed by the Arte Della Calimala with the pigment recently discovered in Asia Minor by one of their members, Bernardo Rucellai, the secret of which they jealously kept for themselves.

Macrophages laden with brown pigment were seen in some of the alveoli, and the intima of some of the small arteries was thickened by fibrous tissue.

The albinistic are generally as healthy as the rest of the population ( but see related disorders below ), with growth and development occurring as normal, and albinism by itself does not cause mortality, although the lack of pigment blocking ultraviolet radiation increases the risk of skin cancer and other problems.

A zebrafish pigment mutant ( bottom ) produced by insertional mutagenesis.

Previously, painters made their own paints individually, by grinding and mixing dry pigment powders with linseed oil, which were then stored in animal bladders.

The color box at right displays the web color Indigo which is equivalent to pigment indigo, the color indigo as it would be reproduced by artists ' paints as opposed to the brighter indigo above ( electric indigo ) that is possible to reproduce on a computer screen.

Pigment indigo can be obtained by mixing 55 % pigment cyan with about 45 % pigment magenta.

These effects can be caused by solvents, or by pigment ingredients such as p-Anisidine, which helps create some inks ' color and shine.

The cause for this was uncertain as there could have been natural causes, although a study by Pyatt et al proposed that the bodies may have been painted with a copper-based pigment.

The Lake takes on a pink hue when saturated due to the presence of beta-carotene pigment caused by the algae Dunaliella salina.

Naturally the water is attracted to the layer of gum and salt created by the acid wash. Printing ink based on drying oils such as linseed oil and varnish loaded with pigment is then rolled over the surface.

Mezzo-fresco is painted on nearly-dry plaster was defined by the sixteenth-century author Ignazio Pozzo as " firm enough not to take a thumb-print " so that the pigment only penetrates slightly into the plaster.

* Plastids, the most notable being the chloroplasts, which contain chlorophyll a green coloured pigment which is used for absorbing sunlight and is used by a plant to make its own food in the process is known as photosynthesis.