(Encyclopedia) curiumcuriumky&oobreve;rˈēəm [key], artificially produced radioactive chemical element; symbol Cm; at. no. 96; mass no. of most stable isotope 247; m.p. about 1,340℃; b.p. 3,110℃;…
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z More Biographies Don't see the biography you're looking for? Search 30,000+ biographies Biographies by…
(Encyclopedia) National Aeronautics and Space Administration (NASA), civilian agency of the U.S. federal government with the mission of conducting research and developing operational programs in the…
Holiday Film Faves How the Grinch Stole Christmas, Bounce, and Quills by Beth Rowen Dr. Seuss' How the Grinch Stole ChristmasOpens November 17 Just about everyone over age 10…
(Encyclopedia) Niagara Falls, in the Niagara River, W N.Y. and S Ont., Canada; one of the most famous spectacles in North America. The falls are on the international line between the cities of…
(Encyclopedia) plutoniumplutoniumpl&oomacr;tōˈnēəm [key], radioactive chemical element; symbol Pu; at. no. 94; mass no. of most stable isotope 244; m.p. 641℃; b.p. 3,232℃; sp. gr. 19.84 at 20℃;…
