air cell chamber
81oxidation–reduction reaction — ▪ chemical reaction Introduction also called redox reaction any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation– reduction… …
82Internal combustion engine — The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high temperature and high …
83Dates of 2006 — ▪ 2007 January Keeping America competitive requires affordable energy. And here we have a serious problem. America is addicted to oil, which is often imported from unstable parts of the world. U.S. Pres. George W. Bush, in his state of the union… …
84chemical industry — Introduction complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives. Although the chemical industry may be described simply as the industry that uses chemistry and… …
85eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
86Osmotic power — Renewable energy Biofuel Biomass Geothermal Hydroelectricity Solar energy Tidal power Wave power Wind power …
87Auschwitz concentration camp — Auschwitz and Auschwitz Birkenau redirect here. For the town, see Oświęcim. Distinguish from Austerlitz. Or see Auschwitz (disambiguation) Auschwitz Concentration camp …
88The Undertaker — This article is about the professional wrestler. For other uses, see Undertaker (disambiguation). The Undertaker Ring name(s) (The) Undertaker Kane The Undertaker …
89John Cena — As WWE Champion Ring nam …
90performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
