Skylab Station Skylab 1 launchSource: NASA May 14, 1998–Marks the 25th anniversary of the first Skylab launch. During this unmanned mission, the 77-ton space station's orbit began to…
Pulitzer Prize-winning writer of historical biographiesBorn: 1/4/1943Birthplace: Rockville Centre, New York Goodwin has won wide praise for her meticulous, in-depth research and her ability to…
(Encyclopedia) George II (George Augustus), 1683–1760, king of Great Britain and Ireland (1727–60), son and successor of George I. Though devoted to Hanover, of which he was elector, George was more…
—By Borgna BrunnerOmo Is Oldest In 2003 the dating of an Ethiopian Homo sapiens fossil, “Herto Man,” was hailed as a milestone in paleoanthropology. At 160,000 years old, Herto Man was a full 50…
CARBON AS FUELALLOTROPECARBON CYCLEFIND OUT MORECarbon is the sixth most common element in the universe and is the main element in every living thing on Earth. Carbon atoms are passed between…
Punctuation MattersPunctuationPunctuation MattersPeriod, Question Mark, Exclamation Mark: The End of the LineThe Comma: A Major PlayerThe Semicolon: Love Child of the Comma and the PeriodThe Colon:…
Using Illegal CommunicationThe Supreme CourtFighting for FreedomsUsing Illegal CommunicationProtecting PornographyPreventing Children from Accessing Pornography on the InternetAllowing Cross…
Halprin, Lawrence
(Encyclopedia) Halprin, Lawrence, 1916-2009, American landscape architect and urban designer, b. Brooklyn, N.Y., Cornell Univ (B.S., 1939), Univ. of…
(Encyclopedia) indiumindiumĭnˈdēəm [key], a metallic chemical element; symbol In; at. no. 49; at. wt. 114.818; m.p. 156.6℃; b.p. about 2,080℃; sp. gr. 7.31 at 20℃; valence +1, +2, or +3. Indium is a…
