Search results
Results from the WOW.Com Content Network
Schongauer's mastery of texture is shown by giving the viewer a sense of how each beast would feel ranging from the roughness of the scales to the soft hairiness of the fur. The heavily worked foreground is balanced by progressively more isolated lines in the background, showing his control of light.
Within economics, this has often been presented as the foundation of a bartering economy. [3] In principle, double coincidence of wants would mean that both parties must agree to sell and buy each commodity. Under this system, problems arise through the improbability of the wants, needs, or events that cause or motivate a transaction occurring ...
Silent trade, also called silent barter, dumb barter ("dumb" here used in its old meaning of "mute"), or depot trade, is a method by which traders who cannot speak each other's language can trade without talking. Group A would leave trade goods in a prominent position and signal, by gong, fire, or drum for example, that they had left goods.
The texture is often described in regard to the density, or thickness, and range, or width, between lowest and highest pitches, in relative terms as well as more specifically distinguished according to the number of voices, or parts, and the relationship between these voices (see Common types below). For example, a thick texture contains many ...
An optical comparator (often called just a comparator in context) or profile projector is a device that applies the principles of optics to the inspection of manufactured parts. In a comparator, the magnified silhouette of a part is projected upon the screen, and the dimensions and geometry of the part are measured against prescribed limits .
Comparators are closely related to operational amplifiers, but a comparator is designed to operate with positive feedback and with its output saturated at one power rail or the other. If necessary, an op-amp can be pressed into service as a poorly performing comparator, but its slew rate will be impaired.
Trade beads from ca. 1740, found in a Wichita village site in present-day Oklahoma Nineteenth-century European trade beads found in Alaska Chugach woven spruce-root hat. Trade beads are beads that were used as a medium of barter within and amongst communities. They are considered to be one of the earliest forms of trade between members of the ...
Pole figures displaying crystallographic texture of gamma-TiAl in an alpha2-gamma alloy, as measured by high energy X-rays. [1] In materials science and related fields, crystallographic texture is the distribution of crystallographic orientations of a polycrystalline sample. A sample in which these orientations are fully random or is amorphous ...