liquids
81Stone sealer — Stone Porosity All natural stone is porous, which means it has interconnected capillaries through which liquids and gases can move. In fact, porous materials act like a hard sponge and actually suck in liquids over time, along with any dissolved… …
82Fire accelerant — In fire protection, an accelerant is any substance or mixture that accelerates the development of fire. Accelerants are often used to commit arson, and some accelerants may cause an explosion. Some fire investigators use the term accelerant to… …
83Дуров, Владимир Алексеевич — В Википедии есть статьи о других людях с такой фамилией, см. Дуров. Владимир Алексеевич Дуров Дата рождения: 29 января 1950(1950 01 29) (62 года) Страна …
84sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… …
85Sound — /sownd/, n. The, a strait between SW Sweden and Zealand, connecting the Kattegat and the Baltic. 87 mi. (140 km) long; 3 30 mi. (5 48 km) wide. Swedish and Danish, Oresund. * * * I Mechanical disturbance that propagates as a longitudinal wave… …
86deformation and flow — Alteration in size or shape of a body under the influence of mechanical forces. Flow is a change in deformation that continues as long as the force is applied. Gases and liquids normally flow relatively freely, while solids deform when subjected… …
87petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …
88sample preparation — ▪ chemistry Introduction in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special …
89Degreasing — Defatting redirects here. For the skin condition, see defatting (medical). Degreasing often called Defatting, is a term used to describe the removal of fatty acids from an object. In culinary science, the word degreasing refers to various methods …
90Mineral industry of Peru — In 2006, Peru occupied a leading position in the global production of the following mineral commodities: arsenic trioxide (fourth after China, Chile, and Morocco), bismuth (third after China and Mexico), copper (third after Chile and the United… …
