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Las Vegas
(Encyclopedia) Las VegasLas Vegasläs vāˈgəs [key], city (1990 pop. 258,295), seat of Clark co., S Nev.; inc. 1911. It is the largest city in Nevada and the center of one of the fastest-growing urban…Mount Vernon, cities, United States
(Encyclopedia) Mount Vernon. 1 City (1990 pop. 16,988), seat of Jefferson co., SE Ill.; settled 1819, inc. 1872. It is a trade, rail, and industrial center in a farm and coal region. Tools, tires,…dubnium
(Encyclopedia) dubniumdubniumd&oomacr;bˈnēəm [key], artificially produced radioactive chemical element; symbol Db; at. no. 105; mass number of most stable isotope 268; m.p., b.p., and sp. gr.…Ali Javan Biography
Ali Javan Born: 1926 Birthplace: Tehran, Iran Helium-neon laser—The helium-neon laser is the most useful, practical…electric fish
(Encyclopedia) electric fish, name for various fish that produce electricity by means of organs usually developed from modified muscle tissue. The electric eels of South America are freshwater…Thomson, Sir Joseph John
(Encyclopedia) Thomson, Sir Joseph John, 1856–1940, English physicist. From 1884 to 1919 he was Cavendish professor of experimental physics at Cambridge. J. J. Thomson was one of the founders of…Chemistry: What Are Covalent Compounds?
What Are Covalent Compounds?ChemistryGetting to Know Covalent CompoundsWhat Are Covalent Compounds?Formation of Multiple Covalent BondsProperties of Covalent CompoundsWhat's in a Name? Covalent…Earth's Atmosphere
The thin blanket of atmosphere that envelops Earth extends several hundred miles into space. From sea level—the very bottom of the ocean of air—to a height of about 60 mi, the air in the…2004 Baseball Coming Attractions
Philadelphia (NL): Citizens Bank Park (Citizens Bank is the title sponsor) officially opened on April 12 for the Phillies home-opening 4-1 loss to the Cincinnati Reds. The baseballonly, grass-field…June 2022 Current Events: Science & Technology News
Top of Page World News | US News | Disaster News The world is a very busy place, and it's hard to stay on top of everything. Infoplease has got you covered. Here are the Science & Technology…Trending
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