…(1945-), first US secretary of homeland security 2003–05; full name Thomas Joseph Ridge. The governor of Pennsylvania 1995–2001, he was chosen by President George W. Bush to head the new Office of Homeland Security, created shortly after the terrorist attacks of September 11, 2001…
…a city in eastern Tennessee, on the Clinch River, established in 1942 as part of US nuclear development; population 27,677 (est. 2008)…
…a village in southwestern South Dakota, headquarters of the Pine Ridge Indian Reservation; population 3,171 (2000)…
…a horizontal beam along the ridge of a roof, into which the rafters are fastened…
…a tent having a central ridge supported by a pole or frame at each end…
…a historic site southeast of Chattanooga in Tennessee, on the Georgia border, scene of a November 1863 Civil War battle that followed that at nearby Lookout Mountain…
…a submarine ridge system extending the length of the Atlantic Ocean from the Arctic to the Antarctic. It is seismically and (in places) volcanically active; the islands of Iceland, the Azores, Ascension, St Helena, and Tristan da Cunha are situated on it…
…a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with sea-floor spreading. An example is the Mid-Atlantic Ridge…
…a range of the Appalachian Mountains in the eastern US, stretching from southern Pennsylvania to northern Georgia. Mount Mitchell is the highest peak, rising to a height of 2,037 m (6,684 ft)…
…an Allied attack on the German position of Vimy Ridge, near Arras, during the First World War. One of the key points on the Western Front, it had long resisted assaults, but on 9 April 1917 it was taken by Canadian troops in fifteen minutes, at the cost of heavy casualties…
…a horizontal beam along the ridge of a roof, into which the rafters are fastened…
…(1945-), first US secretary of homeland security 2003–05; full name Thomas Joseph Ridge. The governor of Pennsylvania 1995–2001, he was chosen by President George W. Bush to head the new Office of Homeland Security, created shortly after the terrorist attacks of September 11, 2001…
