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Golden Section
(Encyclopedia) CE5 Rectangle ABCD is a golden rectangle. Removing the square AEFD leaves the rectangle EBCF Golden Section, in mathematics, division of a line segment into two segments such that…grille
(Encyclopedia) CE5 Grille grille, in architecture, a system of bars, usually of decorative metalwork, forming an openwork barrier or enclosure. In its usual materials of wrought iron or bronze,…Grodno
(Encyclopedia) GrodnoGrodnogrôdˈnô [key], Belarusian Horodno, city (1990 est. pop. 272,000), capital of Grodno region, NW Belarus, on the Neman River. A river port and an important railway center, it…verb
(Encyclopedia) verb, part of speech typically used to indicate an action. English verbs are inflected for person, number, tense and partially for mood; compound verbs formed with auxiliaries (e.g.,…vibration
(Encyclopedia) vibration, in physics, commonly an oscillatory motion—a movement first in one direction and then back again in the opposite direction. It is exhibited, for example, by a swinging…unemployment insurance
(Encyclopedia) unemployment insurance, insurance against loss of wages during the time that an able-bodied worker is involuntarily unemployed. The goal of such insurance is to provide a minimal…calculus of variations
(Encyclopedia) calculus of variations, branch of mathematics concerned with finding maximum or minimum conditions for a relationship between two or more variables that depends not only on the…tar and pitch
(Encyclopedia) tar and pitch, viscous, dark-brown to black substances obtained by the destructive distillation of coal, wood, petroleum, peat, and certain other organic materials. The heating or…tattoo
(Encyclopedia) tattoo, the marking of the skin with punctures into which pigment is rubbed. The word originates from the Tahitian tattau [to mark]. The term is sometimes extended to scarification,…thylacine
(Encyclopedia) thylacinethylacinethīˈləsīnˌ [key] or Tasmanian wolf, carnivorous marsupial, or pouched mammal, of New Guinea, Australia, and Tasmania, presumed extinct since 1936. The thylacine is…Trending
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