closed evaporation system
61Swimming pool — A swimming pool, swimming bath, wading pool, or simply a pool, is an artificially enclosed body of water intended for swimming or water based recreation. There are many standard sizes; the largest and deepest is the Olympic size. A pool can be… …
62oxidation–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… …
63Three Mile Island accident — The Three Mile Island accident of 1979 was the most significant accident in the history of the American commercial nuclear power generating industry. It resulted in the release of a significant amount of radioactivity, an estimated 43,000 curies… …
64Israel — /iz ree euhl, ray /, n. 1. a republic in SW Asia, on the Mediterranean: formed as a Jewish state May 1948. 5,534,672; 7984 sq. mi. (20,679 sq. km). Cap.: Jerusalem. 2. the people traditionally descended from Jacob; the Hebrew or Jewish people. 3 …
65chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
66ECONOMIC AFFAIRS — THE PRE MANDATE (LATE OTTOMAN) PERIOD Geography and Borders In September 1923 a new political entity was formally recognized by the international community. Palestine, or Ereẓ Israel as Jews have continued to refer to it for 2,000 years,… …
67Black hole — For other uses, see Black hole (disambiguation). Simulated view of a black hole (center) in front of the Large Magellanic Cloud. Note the gravitat …
68Perpetual motion — For other uses, see Perpetual motion (disambiguation). Robert Fludd s 1618 water screw perpetual motion machine from a 1660 wood engraving. This device is widely credited as the first recorded attempt to describe such a device in order to produce …
69Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan …
70playa — /pluy euh/, n. Western U.S. the sandy, salty, or mud caked flat floor of a desert basin having interior drainage, usually occupied by a shallow lake during or after prolonged, heavy rains. Cf. dry lake. [1850 55, Amer.; < Sp: shore < LL plagia;… …
