addition is often used
81Complex number — A complex number can be visually represented as a pair of numbers forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the square root of –1. A complex… …
82Sami people — For other uses, see Sami (disambiguation). Samis redirects here. For the Samis Foundation, see Sam Israel. Sámi Mari Boine • Lars Levi Læstadius • Lisa Thomasson • …
83Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
84Cowboy — Cowgirl redirects here. For other uses, see Cowgirl (disambiguation). Ranch hand redirects here. For other uses, see Ranch hand (disambiguation). For other uses, see Cowboy (disambiguation) …
85Grande Armée — La Grande Armée Active 1805–15 Country …
86Singlish — Spoken in Singapore Language family Creole Singlish Language codes ISO 639 3 …
87Gas tungsten arc welding — TIG welding of a bronze sculpture Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG …
88carboxylic acid — Chem. any organic acid containing one or more carboxyl groups. [1900 05; CARBOXYL + IC] * * * Any organic compound with the general chemical formula ―COOH in which a carbon (C) atom is bonded to an oxygen (O) atom by a double bond to make a… …
89glassware — /glas wair , glahs /, n. articles of glass, esp. drinking glasses. [1705 15; GLASS + WARE1] * * * Introduction any decorative article made of glass, often designed for everyday use. From very early times glass has been used for various… …
90Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …
