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black hole

(Encyclopedia)black hole, in astronomy, celestial object of such extremely intense gravity that it attracts everything near it and in some instances prevents everything, including light, from escaping. The term was...

Jackson Hole

(Encyclopedia)Jackson Hole, fertile Rocky Mt. valley, c.50 mi (80 km) long and 6 to 8 mi (9.6–12.8 km) wide, NW Wyo., partly in Grand Teton National Park. Jackson Lake, 39 sq mi (101 sq km), a natural lake throug...

Woods Hole

(Encyclopedia)Woods Hole, uninc. village (1990 pop. 1,080) and seaport in the town of Falmouth, Barnstable co., SE Mass., at the southwestern extremity of Cape Cod. It is the departure point for nearby island resor...

Big Hole National Battlefield

(Encyclopedia)Big Hole National Battlefield: see National Parks and Monuments (table)national parks and monuments (table). ...

Woods Hole Oceanographic Institution

(Encyclopedia)Woods Hole Oceanographic Institution, at Woods Hole, Mass.; est. 1930. In addition to oceanographic research, it conducts important work in meteorology, biology, geology, and geophysics. Its facilitie...

bone black

(Encyclopedia)bone black, solid black material, largely carbon, produced by heating animal bones to high temperatures in the absence of air so as to drive off volatile substances. Finely divided bone black is usefu...

Black, Hugh

(Encyclopedia)Black, Hugh, 1868–1953, Scottish-American theologian and author. After serving as a pastor in Paisley and Edinburgh, he emigrated to the United States in 1906 to begin a professorship of practical t...

Black, James

(Encyclopedia)Black, James, 1823–93, American temperance leader. A Pennsylvania lawyer, he was active in state and national temperance work. His plan for a National Publication House was adopted by the National T...

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