surface crack

  • 91mining — /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… …

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  • 92steel — 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 …

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  • 93Glossary of numismatics — For banknote collecting, see Notaphily terminology. For stamp collecting, see Philately. Numismatics Terminology …

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  • 94Whitney Houston — Infobox Musical artist Name = Whitney Houston Img capt = Whitney attends the 2008 Clive Davis Pre GRAMMY party on February 9, 2008 in Los Angeles, California Background = solo singer Birth name = Whitney Elizabeth Houston Alias = The Voice, Nippy …

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  • 95Tyrannosauridae — Filozoa Tyrannosaurids Temporal range: Late Cretaceous, 83–65.5 Ma …

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  • 96Glossary of climbing terms — This page describes terms and jargon related to climbing and mountaineering. Contents: Top · 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A …

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  • 97Polymer degradation — is a change in the properties tensile strength, colour, shape, etc of a polymer or polymer based product under the influence of one or more environmental factors such as heat, light or chemicals. These changes are usually undesirable, such as… …

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  • 98Alternating Current Field Measurement — (ACFM) is an electromagnetic technique for detection and sizing of surface breaking cracks. It works on all metals and, not requiring direct, electrical contact, works through coatings.The system was originally developed in the early 1990 for the …

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  • 99Environmental stress cracking — (ESC) is one of the most common causes of unexpected brittle failure of thermoplastic (especially amorphous) polymers known at present. Environmental stress cracking may account for around 15 30% of all plastic component failures in service.H. F …

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  • 100Antarctica — /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:… …

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