gas-discharge indicator
51Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …
52sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …
53Energy policy of the People's Republic of China — The energy policy of the People s Republic of China is a policy decided on by the Central Government with regard to energy and energy resources. The country is currently the world s largest emitter of greenhouse gases according to a Dutch… …
54Three Mile Island accident — The Three Mile Island accident of 1979 was the most significant accident in the history of the American commercial nuclear power generating industry. It resulted in the release of a significant amount of radioactivity, an estimated 43,000 curies… …
55photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
56Integrated Engine Pressure Ratio — The Integrated Engine Pressure Ratio (IEPR) is the ratio of the pressure at the core engine exhaust and fan discharge pressure compared to the intake pressure to the gas turbine engine.In some gas turbine engines the engine pressure ratio (EPR)… …
57test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …
58Tell-tale (automotive) — A group of tell tales A tell tale (or idiot light, especially in North America[1]) is an indicator of the status or malfunction of a system within a motor vehicle. Tell tales consist of a light bulb or an LED which lights up a symbol or text… …
59Glossary of firefighting — Note: This list does not include firefighting equipment, i.e., tools and apparatus used by firefighters. Please refer to Glossary of firefighting equipment for such terms. : Note: This list is incomplete. You can help Wikipedia by… …
60steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
