when combustion
101Phlogiston theory — The alchemist and physician J. J. Becher proposed the phlogiston theory The phlogiston theory (from the Ancient Greek φλογιστόν phlogistón burning up , from φλόξ phlóx flame ), first stated in 1667 by Johann Joachim Becher, is an obsolete… …
102Breathing gas — is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas. Other artificial gases, either pure gases or mixtures of gases, are used in breathing equipment and enclosed… …
103Water heating — is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have… …
104Firefighting — Distinguish from a firefight, which means a battle with firearms. Firefighting is the act of extinguishing destructive fires. A firefighter fights these fires to prevent destruction of life, property and the environment. Firefighting is a highly… …
105Collaboratory — A collaboratory, as defined by William Wulf in 1989, is a “center without walls, in which the nation’s researchers can perform their research without regard to physical location, interacting with colleagues, accessing instrumentation, sharing… …
106Ammonia — For other uses, see Ammonia (disambiguation). Ammonia …
107Gunpowder — For other meanings, see gunpowder (disambiguation). Black powder for muzzleloading rifles and pistols in FFFG granulation size. Coin (diameter 24 mm) for comparison. Gunpowder, also known since in the late 19th century as black powder, was the… …
108Heat engine — Thermodynamics …
109Propane — Not to be confused with propene. Propane …
110Electric boat — This article is about electrically powered boats in general. For the company called Electric Boat , see General Dynamics Electric Boat. Passenger solar boat Solifleur, Switzerland 1995 While a significant majority of water vessels are powered by… …
