spark drilling
101rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …
102Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …
103wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… …
104Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… …
105community ecology — Introduction study of the organization and functioning of communities (community), which are assemblages of interacting populations of the species living within a particular area or habitat. As populations of species interact with one …
106technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
107Cherbourg Project — The route of the boats from Cherbourg to Israel The Boats of Cherbourg was an Israeli military operation which took place on 24 December 1969, and involved the escape of five class 3 missile boats from the French port of Cherbourg. The boats had… …
108List of Disney attractions that were never built — This is a list of publicly known Disney attractions that were never built, that is, rides and shows of Disney parks that never reached the final building stage. Some of them were fully designed and not built. Others were concepts, sometimes with… …
109List of No More Heroes characters — This article provides a list of characters who appear in the 2007 Wii video game No More Heroes[1] and its sequel No More Heroes 2: Desperate Struggle. Contents 1 Main characters 1.1 Travis Touchdown …
110Military equipment of Turkey — The military equipment of Turkey includes a wide array of arms, artilleries, large surface vessels, cannons, armored vehicles, mortars, unmanned vehicles and many different equipments. Contents 1 Historical development 1.1 General 1.2 1923 1950 …
