rotary mud
41Cumbres and Toltec Scenic Railroad — Cumbres Toltec Scenic Railroad Locale Conejos County and Archuleta County in Colorado and Rio Arriba County in New Mexico Dates o …
42Ixtoc I — was an exploratory oil well in the Gulf of Mexico, about convert|600|mi|km south of the U.S. state of Texas. On June 3, 1979, the well suffered a blowout and is recognised as the second largest oil spill in history.Mexico s government owned oil… …
43Karkala — Infobox Indian Jurisdiction native name = Karkala| other name = Karikallu (ಕರಿಕಲ್ಲು) nickname = Jain Thirth skyline = Karkal.jpg skyline caption = Entrance Gate of Padutirupathi Sri Venkataramana Temple image up = India Karnataka locator map.svg… …
44History of the petroleum industry in Canada — The Canadian petroleum industry arose in parallel with that of the United States. Because of Canada s unique geography, geology, resources and patterns of settlement, however, it developed in quite different ways. The evolution of the petroleum… …
45Baptist well drilling — A very simple manual method to drill water wells, meant to be applied by very poor villagers in developing countries, who quickly learn how to drill their wells themselves. The Baptist drilling rig can be built in any ordinary arc welding… …
46Lime kiln — A lime kiln is a kiln used to produce quicklime by the calcination of limestone (calcium carbonate). The chemical equation for this reaction is::CaCO3 + heat → CaO + CO2This reaction takes place at 900°C (at which temperature the partial pressure …
47Vashi — Infobox Indian Jurisdiction type = suburb |metro = Mumbai state name = Maharashtra native name = Vashi latd=19.08 |longd=73.01 altitude = district = Navi Mumbai assembly const = Vashi postal code = 400 703 population total = 400,000Vashi is a… …
48Core sample — Rock core samples. The product of a Diamond rig. (The bird is a Pied Butcherbird.) A core sample is a cylindrical section of (usually) a naturally occurring substance. Most core samples are obtained by drilling with special drills into the… …
49bird — birdless, adj. /berrd/, n. 1. any warm blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard shelled egg. 2. a fowl or game bird. 3 …
50Bird — /berrd/, n. Larry, born 1956, U.S. basketball player. * * * I Any of the warm blooded, beaked vertebrates of the class Aves, including more than 9,600 living species. A covering of feathers distinguishes birds from all other animals. Birds have a …
