electric-arc drilling

  • 31Africa — /af ri keuh/, n. 1. a continent S of Europe and between the Atlantic and Indian oceans. 551,000,000; ab. 11,700,000 sq. mi. (30,303,000 sq. km). adj. 2. African. * * * I Second largest continent on Earth. It is bounded by the Mediterranean Sea,… …

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  • 32Atlanta metropolitan area — Metro Atlanta redirects here. For the transit agency, see Metropolitan Atlanta Rapid Transit Authority. Metro Atlanta Atlanta Sandy Springs Marietta, Georgia MSA   CSA   …

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  • 33Los Angeles — /laws an jeuh leuhs, leez , los/ or, often, /laws ang geuh leuhs, leez , los/ a seaport in SW California. 2,966,763; with suburbs 6,997,000; 452 sq. mi. (1170 sq. km). * * * City (pop., 2000: 3,694,820), southern California, U.S. The second… …

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  • 34Helium — otherusesHelium (He) is a colorless, odorless, tasteless, non toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2. Its boiling and melting points are the lowest among the… …

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  • 35Maurice Hinchey — Member of the U.S. House of Representatives from New York s 22nd district Incumbent …

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  • 36North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …

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  • 37technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …

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  • 38Frank Whittle — Infobox Person name = Frank Whittle image size = 300px caption = birth name = birth date = birth date|1907|6|1|df=y birth place = Earlsdon, Coventry, England. death date = death date and age|1996|8|9|1907|6|1|df=y death place = Columbia, Maryland …

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  • 39Environment of Florida — Everglades National Park The state of Florida in the United States possesses a rich and diverse array of land and marine life and a mild subtropical climate. These assets have drawn millions of people to settle in the once rural state over the… …

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  • 40Metro Atlanta — Infobox Metropolitan Area MSA name = nowrap|Metro Atlanta name = Metro Atlanta largest city = Atlanta other cities = Sandy Springs Roswell Marietta rank us = 9th population = 5,278,904 (2007 est.) density mi2 = 630 density km2 = 243 area mi2 =… …

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