collapse of casing
21Blowout (well drilling) — A blowout is the uncontrolled release of crude oil and/or natural gas from an oil well or gas well after pressure control systems have failed.[1] Prior to the advent of pressure control equipment in the 1920s, the uncontrolled release of oil and… …
22Tube well — A Tube well as the name implies is simply a tube or pipe bored into the underground reservoir, fitted with a strainer at the lower end and worked at the top by a pump, to lift water for irrigation.A Tube well is type of water well in which a long …
23mining — /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… …
24Egyptian pyramids — The Egyptian pyramids are pyramid shaped structures located in Egypt, and were built as a tomb for dead pharaohs. There are over 100 Egyptian pyramids, most of which were built during the Old and Middle Kingdom periods.Michael Ritter (2003) [http …
25Violet Club — was a nuclear weapon deployed by the United Kingdom during the cold war.Violet Club was the first high yield weapon deployed by the British, and was intended to provide an emergency capability until a thermonuclear weapon could be developed from… …
26Deepwater Horizon explosion — This article is about the explosion. For the drilling rig and oil spill, see Deepwater Horizon (disambiguation). Deepwater Horizon explosion Anchor handling tugs and platform supply vessels combat the fir …
27Asbestos — For other uses, see Asbestos (disambiguation). Fibrous asbestos on muscovite …
28baking — Process of cooking by dry heat, especially in an oven. Baked products include bread, cookies, pies, and pastries. Ingredients used in baking include flour, water, leavening agents (baker s yeast, baking soda, baking powder), shortening (fats,… …
29Nuclear weapons and the United Kingdom — United Kingdom Nuclear program start date 10 April 1940 First nuclear weapon test 2 October 1952 First fusion weapon test …
30Doble steam car — at a steam festival in Bochum, Germany in 2007. Any of several makes of steam powered automobile in the early 20th century, including Doble Detroit, Doble Steam Car, and Doble Automobile, are referred to as a Doble because of their founding or… …
