dust handling
111Calendar of 1998 — ▪ 1999 January January 1 At the stroke of the new year, the Russian ruble is worth a thousand times less than before as three zeros are removed from its value; about six new rubles equal one U.S. dollar. Foreign Minister David Levy… …
112aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …
113lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …
114livestock farming — Introduction raising of animals for use or for pleasure. In this article, the discussion of livestock includes both beef and dairy cattle, pigs (pig), sheep, goats (goat), horses (horse), mules (mule), asses, buffalo, and camels (camel …
115plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …
116Drum Motor — A Drum Motor (sometimes referred to as a motorised pulley) is in simplistic terms a highly efficient geared motor drive enclosed within a steel shell providing a single component driving pulley for conveyor belts. Drum Motor with Planitory Gear …
117Fusion power — The Sun is a natural fusion reactor. Fusion power is the power generated by nuclear fusion processes. In fusion reactions two light atomic nuclei fuse together to form a heavier nucleus (in contrast with fission power). In doing so they release a …
118Tripod (The War of the Worlds) — Martian tripod illustration drawn by Henrique Alvim Corréa for a 1906 edition of the novel. Tripods or fighting machines are a type of fictional three legged walker from the H. G. Wells classic science fiction novel The War of the Worlds, used by …
119Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel …
120painting — /payn ting/, n. 1. a picture or design executed in paints. 2. the act, art, or work of a person who paints. 3. the works of art painted in a particular manner, place, or period: a book on Flemish painting. 4. an instance of covering a surface… …
