descending projection
71Outline of algebraic structures — In universal algebra, a branch of pure mathematics, an algebraic structure is a variety or quasivariety. Abstract algebra is primarily the study of algebraic structures and their properties. Some axiomatic formal systems that are neither… …
72abseil — ab·seil || æbseɪl, saɪl n. method of descending a mountain face by sliding down a rope which is fastened to an overhead projection (Mountain Climbing) v. rappel, descend a mountain face by sliding down a rope which is fastened to an overhead… …
73abseiled — ab·seil || æbseɪl, saɪl n. method of descending a mountain face by sliding down a rope which is fastened to an overhead projection (Mountain Climbing) v. rappel, descend a mountain face by sliding down a rope which is fastened to an overhead… …
74abseils — ab·seil || æbseɪl, saɪl n. method of descending a mountain face by sliding down a rope which is fastened to an overhead projection (Mountain Climbing) v. rappel, descend a mountain face by sliding down a rope which is fastened to an overhead… …
75rappelling — n. act of descending a mountain face by sliding down a rope which is attached to a body harness and fastened to an overhead projection ræ pel v. descend a mountain face by sliding down a rope which is attached to a body harness and fastened to… …
76MUSIC — This article is arranged according to the following outline: introduction written sources of direct and circumstantial evidence the material relics and iconography notated sources oral tradition archives and important collections of jewish music… …
77branch — I. noun Usage: often attributive Etymology: Middle English, from Anglo French branche, from Late Latin branca paw Date: 14th century 1. a natural subdivision of a plant stem; especially a secondary shoot or stem (as a bough) arising from a main… …
78Buckminster Fuller — Infobox Person name = R. Buckminster Fuller image size = 200px caption = R. Buckminster Fuller c.1917 birth date = birth date|1895|07|12 birth place = Milton, Massachusetts death date = death date and age|1983|7|1|1895|07|12|mf=y death place =… …
79Boomerang — A boomerang is a simple implement used for various purposes. It is primarily associated with Australian Aborigines, but has been found amongst peoples of North East Africa, Sardinia, Arizona, southern California Native Americans, and in India.… …
80Caving — or spelunking is the recreational sport of exploring caves. In contrast, speleology is the scientific study of caves and the cave environment. [http://www.teara.govt.nz/TheBush/BushAndMountainRecreation/Caving/3/en Caving in New Zealand] (from Te …
