CHESNEY, Chester Anton, a Representative from Illinois; born in Chicago, Cook County, Ill., March 9, 1916; attended St. Hyacinth and Lane Technical High School; was graduated from the De Paul…
(Encyclopedia) Orbiting Geophysical Observatory (OGO), series of six orbiting observatories (see observatory, orbiting) launched between 1964 and 1969 by the National Aeronautics and Space…
(Encyclopedia) Grignard reagentGrignard reagentgrēnyärdˈ rēāˈjənt [key], any of an important class of extremely reactive chemical compounds used in the synthesis of hydrocarbons, alcohols, carboxylic…
(Encyclopedia) McClintock, Sir Francis Leopold, 1819–1907, British arctic explorer. As a lieutenant in the navy he was assigned to his first arctic service in 1848, when Sir James Clark Ross went in…
(Encyclopedia) Gates of the Arctic National Park and Preserve, N Alaska. Located N of the Arctic Circle, the park (7,523,898 acres/3,046,113 hectares) and adjacent preserve (948,629 acres/384,060…
(Encyclopedia) guavaguavagwäˈvə [key], small evergreen tree or shrub of the genus Psidium of the family Myrtaceae (myrtle family), native to tropical America and grown elsewhere for its ornamental…
(Encyclopedia) cassowarycassowarykăsˈəwârˌē [key], common name for a flightless, swift-running, pugnacious forest bird of Australia and the Malay Archipelago, smaller than the ostrich and emu. The…
HOW DO FUNGI FEED? HOW DO FUNGI REPRODUCE? ARE MUSHROOMS AND TOADSTOOLS THE SAME? FUNGI CLASSIFICATIONMOLDSFIND OUT MORENeither plants nor animals, the fungi kingdom includes toadstools, puffballs…
The Pillsbury A Mill in Minneapolis, Minn. is among American sites most at risk America's Most Endangered Places America's Most Endangered Places 2010America's Most Endangered Places…
GiganotosaurusLeg bonesHip bonesForelimbsSkullsIn the middle of the 19th century, the first fossil skeletons of some extraordinary creatures were unearthed. These skeletons are of the dinosaurs –…
