explosive — explosively, adv. explosiveness, n. /ik sploh siv/, adj. 1. tending or serving to explode: an explosive temper; Nitroglycerin is an explosive substance. 2. pertaining to or of the nature of an explosion: explosive violence. 3. likely to lead to… … Universalium
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
petroleum 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… … Universalium
Types of concrete — There are many types of concrete, variations of installation, composition, finish and performance characteristics. A highway paved with concrete … Wikipedia
Dry ice — Sublimation of dry ice when placed on the surface of water at room temperature Dry ice, sometimes referred to as Cardice or as card ice , is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower… … Wikipedia
Fly ash — Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification Fly ash is one of the residues generated in combustion, and comprises the fine particles that rise with the flue gases. Ash which does not… … Wikipedia
Streetcars in Washington, D.C. — This article refers to the streetcars that existed in Washington prior to 1962. For information on the proposed new streetcar lines, see DC Streetcar. Washington Streetcars 15th Street NW in the early 20th century Info … Wikipedia
Petroleum — For other uses, see Petroleum (disambiguation). Proven world oil reserves, 2009 … Wikipedia
Methanol fuel — This article is about methanol used as a fuel. For other alcohols used as fuels, see Alcohol fuel. Methanol is an alternative fuel for internal combustion and other engines, either in combination with gasoline or directly ( neat ). It is used in… … Wikipedia
Natural gas — For other uses, see Natural gas (disambiguation). Natural gas extraction by countries in cubic meters per year. Natural gas is a naturally occurring gas mixture consisting primarily of methane, typically with 0–20% higher hydrocarbons[1] … Wikipedia
Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ … Wikipedia