transition of cracks
41Wear — For other uses, see Wear (disambiguation). v · d · e Materials failure modes …
42Fracture mechanics — Continuum mechanics …
43Blu-ray Disc — Blue ray redirects here. For the fish of the same name, see Neoraja caerulea. Blu ray Disc Media type …
44materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
45sedimentary 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… …
46Concrete degradation — may have various causes. Concrete can be damaged by fire, aggregate expansion, sea water effects, bacterial corrosion, calcium leaching, physical damage and chemical damage (from carbonation, chlorides, sulfates and distilled water). This process …
47Post-invasion Iraq (2003 to present) — See also: Iraq War, 2007 in Iraq, 2008 in Iraq, and 2009 in Iraq Post invasion Iraq (2003 to present) Part of the Iraq War …
48HISTORICAL SURVEY: THE STATE AND ITS ANTECEDENTS (1880–2006) — Introduction It took the new Jewish nation about 70 years to emerge as the State of Israel. The immediate stimulus that initiated the modern return to Zion was the disappointment, in the last quarter of the 19th century, of the expectation that… …
49Hagia Sophia — For other uses, see Hagia Sophia (disambiguation). Aghia Sophia redirects here. For the steamship, see SS Aghia Sophia. Hagia Sophia Ayasofya (Turkish) Ἁγία Σοφία (Greek) Sancta Sophia (Latin) …
50Subcultural theory — In criminology, subcultural theory emerged from the work of the Chicago School on gangs and developed through the symbolic interactionism school into a set of theories arguing that certain groups or subcultures in society have values and… …
