subsurface investigation
11Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …
12Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
13Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
14Leak Detection — Pipeline Leak Detection Using Non Destructive Non Invasive Testing Techniques = Most pipelines, regardless of what they contain, are designed with a typical life span of 25 years. When they do begin to fail, they do so slowly beginning with leaks …
15rock — 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… …
16Rock — /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… …
17King's Cross fire — The King s Cross fire was a fatal underground fire in London which broke out at approximately 19:30 on 18 November 1987, and which killed 31 people.It took place at King s Cross St. Pancras, a major interchange on the London Underground. The… …
18exploration — /ek spleuh ray sheuhn/, n. 1. an act or instance of exploring or investigating; examination. 2. the investigation of unknown regions. [1535 45; < L exploration (s. of exploratio) an examination, equiv. to explorat(us) searched out, examined (ptp …
19Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
20Guatemala — Guatemalan, adj., n. /gwah teuh mah leuh/; Sp. /gwah te mah lah/, n. 1. a republic in N Central America. 11,558,407; 42,042 sq. mi. (108,889 sq. km). 2. Also called Guatemala City. a city in and the capital of this republic. 917,322. * * *… …
