open-pit bottom
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open-pit mining — [ō′pən pit΄] n. a method of mining, usually for metallic ores, in which the waste and ore are completely removed from the sides and bottom of a pit which gradually becomes an enormous canyonlike hole: see also STRIP MINING * * * surface… … Universalium
open-pit mining — [ō′pən pit΄] n. a method of mining, usually for metallic ores, in which the waste and ore are completely removed from the sides and bottom of a pit which gradually becomes an enormous canyonlike hole: see also STRIP MINING … English World dictionary
Pit of despair — For the pit of despair plot device, see The Princess Bride. Harlow s vertical chamber apparatus The pit of despair was a name used by American comparative psychologist Harry Harlow for a device he designed, technically called a vertical chamber… … Wikipedia
Pit of Peril (Thunderbirds episode) — Infobox Television episode Title = Pit of Peril Series = 1 Season = 1 Episode = 2 Airdate = October 7th, 1965 Production = 2 Writer = Alan Fennell Director = Desmond Saunders Episode list = List of Thunderbirds episodes Prev = Trapped in the Sky… … Wikipedia
Berkeley Pit — The Berkeley Pit is a former open pit copper mine located in Butte, Montana, USA, about a mile and a half wide and about convert|1780|ft|m deep. It contains about convert|900|ft|m of water that is heavily acidic, with a pH level of 2.5, and laden … Wikipedia
The Pit and the Pendulum (1961 film) — Infobox Film name = The Pit and the Pendulum image size = caption = Original 1961 theatrical release poster by Reynold Brown director = Roger Corman producer = Roger Corman James H. Nicholson (Exec Prod) Samuel Z. Arkoff (Exec Prod) writer =… … Wikipedia
Saw pit — A saw pit or sawpit is a pit over which lumber is positioned to be sawed with a long two handled saw by two men, one standing above the timber and the other below. [http://www.thefreedictionary.com/sawpit sawpit ] and… … Wikipedia
Bottomless pit (video games) — A bottomless pit, as its name implies, is a pit that has no identifiable bottom. They are a common hazard in many video games.Depending on the game, when a player character falls into a bottomless pit, they may lose either a life or health and/or … Wikipedia
Clay Pit Ponds State Park Preserve — is state park of the U.S. state of New York, located near the southwestern shore of Staten Island. It is the only state park located on Staten Island. The park is a 260 acre (1.1 km2) nature preserve, comprising wetlands, ponds, sand barrens … Wikipedia
Snake pit (game) — Snake Pit is an outdoor recreational game and an alternative to the popular activity known as horseshoes. The game requires contestants to toss an oversized washer into a square wooden box or the hole inside of it (a pipe coming up from the base… … Wikipedia
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
