filtration law
121List of border incidents involving North Korea — The following is a partial list of border incidents involving North Korea since the armistice of July 27, 1953 froze large scale military action of the Korean War. Most of these incidents took place near either the Korean Demilitarized Zone or… …
122Environmental issues in New York City — are affected by the city s size, density, abundant public transportation infrastructure, and location at the mouth of the Hudson River. New York City also plays an important role in national environmental policy because of its size and influence …
123Alchemy and chemistry in medieval Islam — Alchemy and chemistry in Islam refers to the study of both traditional alchemy and early practical chemistry (the early chemical investigation of nature in general) by scholars in the medieval Islamic world. The word alchemy was derived from the… …
124Water Resources Development Act of 1976 — Water Resources Development Act of 1976, (WRDA 1976), USPL|94|587 is a public law enacted on October 22, 1976 by the Congress of the United States of America concerning various water resources and projects. [ [http://thomas.loc.gov/cgi… …
125iodine — /uy euh duyn , din/; in Chem. also /uy euh deen /, n. Chem. a nonmetallic halogen element occurring at ordinary temperatures as a grayish black crystalline solid that sublimes to a dense violet vapor when heated: used in medicine as an antiseptic …
126NASA spin-off — Science and technology in the United States African American contributions Discoveries …
127Joseph Stalin — Stalin redirects here. For other uses, see Stalin (disambiguation). Joseph Stalin Russian: Иосиф Виссарионович Сталин Georgian: იოსებ ბესარიონის ძე სტალინი …
128Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) …
