An artistic canon of body proportions (or aesthetic canon of proportion), in the sphere of visual arts, is a formally codified set of criteria deemed mandatory for a particular artistic style of figurative art. The word canon () was first used for this type of rule in Classical Greece, where it set a reference standard for body proportions, so as to produce a harmoniously formed figure appropriate to depict gods or kings. Other art styles have similar rules that apply particularly to the representation of royal or divine personalities.
In 1961, Danish Egyptologist Erik Iverson described a canon of proportions in classical Egyptian painting. This work was based on still-detectable grid lines on tomb paintings: he determined that the grid was 18 cells high, with the base-line at the soles of the feet and the top of the grid aligned with hair line, and the navel at the eleventh line. These 'cells' were specified according to the size of the subject's fist, measured across the knuckles. (Iverson attempted to find a fixed (rather than relative) size for the grid, but this aspect of his work has been dismissed by later analysts.) This proportion was already established by the Narmer Palette from about the 31st century BCE, and remained in use until at least the conquest by Alexander the Great some 3,000 years later.
The Egyptian canon for paintings and reliefs specified that heads should be shown in profile, that shoulders and chest be shown head-on, that hips and legs be again in profile, and that male figures should have one foot forward and female figures stand with feet together.
In Classical Greece, the sculptor Polykleitos (fifth century BCE) established the Canon of Polykleitos. Though his theoretical treatise is lost to history, he is quoted as saying, "Perfection ... comes about little by little () through many numbers". By this he meant that a statue should be composed of clearly definable parts, all related to one another through a system of ideal mathematical proportions and balance.
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Body proportions is the study of artistic anatomy, which attempts to explore the relation of the elements of the human body to each other and to the whole. These ratios are used in depictions of the human figure and may become part of an artistic canon of body proportion within a culture. Academic art of the nineteenth century demanded close adherence to these reference metrics and some artists in the early twentieth century rejected those constraints and consciously mutated them.
Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sculptural processes originally used carving (the removal of material) and modelling (the addition of material, as clay), in stone, metal, ceramics, wood and other materials but, since Modernism, there has been almost complete freedom of materials and process.
Mineralogy, chemistry and spatial distribution of phyllomanganates, found in abundance at the bottom of thick Ni-laterite deposits, were established on dislocated vein-infillings showing banded and fibrous patterns (i.e. colloforms with rows of tiny boxwor ...
2019
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