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sound barrier

(Encyclopedia)sound barrier: see aerodynamics. ...

McMurdo Sound

(Encyclopedia)McMurdo Sound, Antarctica: see Ross Sea. ...

Sound, the

(Encyclopedia)Sound, the: see Øresund, Denmark and Sweden. ...

Bardsey Island

(Encyclopedia)Bardsey Island bärdˈsē [key], Welsh Ynys Enlli, 0.7 sq mi (1.8 sq km), Gwynedd, Wales, off the SW tip of the Lleyn Peninsula. The small island, which rises to 548 ft (167 m), is separated from the ...

Viscount Melville Sound

(Encyclopedia)Viscount Melville Sound, 250 mi (402 km) long and 100 mi (161 km) wide, arm of the Arctic Ocean, Northwest Territories and Nunavut, Canada, between Victoria and Prince of Wales islands on the south an...

Scoresby Sound

(Encyclopedia)Scoresby Sound, arm of the Greenland Sea, E Greenland. It has numerous fjords that branch out generally westward to the ice cap. Some of the branches extend more than 180 mi (290 km) inland. At its mo...

Santa Rosa Island

(Encyclopedia)Santa Rosa Island, narrow barrier beach between the Gulf of Mexico and Santa Rosa Sound, NW Fla. in the vicinity of Pensacola, extending c.50 mi (80 km) parallel to the coast. It is the site of Fort P...

Fire Island

(Encyclopedia)Fire Island, barrier beach, 32 mi (52 km) long, off the south shore of Long Island, SE N.Y., separating Great South Bay from the Atlantic Ocean. Robert Moses State Park is at its west end. Once access...

Prince William Sound

(Encyclopedia)Prince William Sound, large, irregular, islanded inlet of the Gulf of Alaska, S Alaska, E of the Kenai peninsula. It has many bays and good harbors; the large Columbia Glacier flows into Columbia Bay,...

Shelter Island

(Encyclopedia)Shelter Island (1990 pop. 1,193), 7 mi (11.2 km) long and 6 mi (9.7 km) wide, between the two peninsulas of E Long Island, SE N.Y. Settled in the 17th cent. by English colonists, the island has been a...