(View exact match)symmetryCATEGORY: artifact
DEFINITION: A property of design based on the spatial position of the geometric figure(s) constituting the fundamental part of the design, and on the movement of the figure(s) across a line or around a point axissymmetry analysisCATEGORY: technique
DEFINITION: A mathematical analytical approach to the decorative style of symmetry. Patterns are divided into two distinct groups or symmetry classes: 17 classes for those patterns that repeat motifs horizontally, and 46 classes for those that repeat them horizontally and vertically. Such studies suggest that the choice of motif arrangement within a particular culture is very important.
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DEFINITION: A town on the island of Walcharan in the southwestern Netherlands, probably founded as a refuge for the Flemish population in the times of Viking raids. Many of this type of refuge were probably planned by Baldwin of Flanders in the 890s. Middleburg consisted of a simple circular fortress with a massive rampart and ditch. The symmetry of these early fortresses is fossilized in the street plan of modern Middleburg. Excavations show the town was founded about 1000, from which time it has developed as a regional center.bifaceSYNONYMS OR RELATED TERMS: bifacial; handaxe; coup-de-poing
DEFINITION: A type of prehistoric stone tool flaked on both faces or sides, the main tool of Homo erectus. The technique was typical of the hand-ax tradition of the Lower Paleolithic period and the Acheulian cultures. Biface may be oval, triangular, or almond-shaped in form and characterized by axial symmetry, even if marks made by use are more plentiful on one face or on one edge. The cutting edge could be straight or jagged and the tool used as a pick, knife, scraper, or even weapon. Only in the most primitive tools was flaking done to one side only.fluted pointSYNONYMS OR RELATED TERMS: fluted projectile point
DEFINITION: A projectile point with a distinctive longitudinal groove left after removal of a channel flake; a long, medial channel notched to the base of a flake. The channeled flake is removed from one or both faces by striking the specially prepared base sharply with a piece of wood or bone. The sharp ridges of the flutes were ground smooth near the base of the point, to prevent them from cutting the bindings when the point was inserted into a notched foreshaft. These points have extreme symmetry, careful flaking, and the removal of a long, parallel and shallow flake from one or both sides. Fluted points are characteristic of the Palaeoindian peoples of North America such as the Clovis and Folsom projectile points.hypothesis testingCATEGORY: technique
DEFINITION: The process of examining how well various hypotheses explain the actual data, eliminating those that are invalid, and identifying those that best fit the observed phenomena. A successful hypothesis is found to be the best approximation of truth given the current state of knowledge. In archaeology, the primary standard for accepting a hypothesis is compatibility with available data and other criteria include predictability, parsimony, completeness, and symmetry.medial axisCATEGORY: artifact
DEFINITION: The middle of an imaginary line about which a body rotates or with respect to which it possesses rotational symmetrypatternSYNONYMS OR RELATED TERMS: symmetry
DEFINITION: Any design with regularly repeated partsradial planeCATEGORY: ceramics
DEFINITION: The plane that radiates from the vertical axis of a pot's (radial or bilateral) symmetry or from the longitudinal axis of a tree or branch.