deep-hole making
121Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …
122List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …
123telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
124dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …
125List of Madagascar characters — This is a list of characters that have appeared in the Madagascar films and the television series The Penguins of Madagascar. Contents 1 Concept and creation 2 Main characters …
126Association football positions — For typical field formations, see Formation (association football). Modern player positions. A second striker (SS) is often employed instead of the centre forward (CF). In the sport of association football, each of the eleven players on a team is …
127Native American music — Introduction music of the indigenous peoples of the Western Hemisphere. The Americas contain hundreds of native communities, each with its own distinctive history, language, and musical culture. These communities although united in placing… …
128undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… …
