colluvial apron — A landform with a concave to planar surface composed of a thick wedge shaped deposit of colluvium and/or slope alluvium that forms the base (footslope) of a bluff, escarpment or steep slope . Compare: beveled base. SW … Glossary of landform and geologic terms
talus cone — A steep (e.g., 30 40.), cone shaped landform at the base of a cliff or escarpment that heads in a relatively small declivity or ravine, and composed of poorly sorted rock and soil debris that has accumulated primarily by episodic rockfall or,… … Glossary of landform and geologic terms
canyon wall — The steep to near vertical slope between a canyon bottom and higher, adjacent hillslopes, mountain slopes, or summits. Canyon walls are generally dominated by rock outcrop and/or bedrock within the soil profile. Canyon walls commonly include… … Glossary of landform and geologic terms
cliff — Any high, very steep to perpendicular or overhanging face of rock or earth; a precipice. Compare: bluff, beveled base. GG … Glossary of landform and geologic terms
talus slope — a portion of a hillslope or mountainslope mantled by talus and lying below a rockfall source (e.g., cliff). Compare: scree slope, scree, talus. Compare: beveled base. SW … Glossary of landform and geologic terms
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
Bounding volume — A three dimensional model with its bounding box drawn in dashed lines. For building code compliance, see Bounding. In computer graphics and computational geometry, a bounding volume for a set of objects is a closed volume that completely contains … Wikipedia
Période d'Uruk — Masse d armes de la période d Uruk, Tello, v. 3500–2900 av. J. C., Musée du Louvre. La période d Uruk est un stade de développement protohistorique de la Mésopotamie, qui couvre en gros le IVe millénaire av. J. C. Comme son nom l indique, elle a… … Wikipédia en Français
Molding (decorative) — For other uses, see Molding (disambiguation). Cavetto molding and resulting shadow pattern Ovolo molding and resulting shadow pattern … Wikipedia
Welding joints — are formed by welding two or more workpieces, made of metals or plastics, according to a particular geometry. The most common types are butt and lap joints; there are various lesser used welding joints including flange and corner joints. Contents … Wikipedia
