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Yost, Ed

(Encyclopedia) Yost, Ed (Paul Edward Yost), 1919–2007, American balloonist, b. Bristow, Iowa, grad. Boeing School of Aeronautics, 1940. The father of modern hot-air ballooning, Yost pioneered the…

liposome

(Encyclopedia) liposomeliposomelīˈpəsōmˌ, lĭpˈə– [key], microscopic, fluid-filled pouch whose walls are made of layers of phospholipids identical to the phospholipids that make up cell membranes.…

kiln

(Encyclopedia) kilnkilnkĭl, kĭln [key], furnace for firing pottery and enamels, for making brick, charcoal, lime, and cement, for roasting ores, and for drying various substances (e.g., lumber,…

Daugherty, Harry Micajah

(Encyclopedia) Daugherty, Harry MicajahDaugherty, Harry Micajahdôˈərtē [key], 1860–1941, American politician, b. Fayette co., Ohio. He became a successful corporation lawyer in Columbus, Ohio, and…

Donald, David Herbert

(Encyclopedia) Donald, David Herbert, 1920–2009, American historian, b. Goodman, Miss. After receiving his Ph.D. from the Univ. of Illinois in 1946, he taught at Columbia (1947–49; 1951–59), Smith (…

hemorrhoids

(Encyclopedia) hemorrhoidshemorrhoidshĕmˈəroidz [key] or piles, dilatations of the veins about the anus (external hemorrhoids) or those higher up inside it (internal hemorrhoids). They appear as…

ark

(Encyclopedia) ark, in the Bible. 1 Boat of Noah, which he built at God's command to preserve his family and certain creatures from the Deluge. 2 Ark of the Covenant, the sacred wooden chest of the…

flat foot

(Encyclopedia) flat foot, condition of the human foot in which the entire sole rests on the ground when the person is standing. When the foot muscles are weakened or the ligaments are strained and…

Wind Cave National Park

(Encyclopedia) Wind Cave National Park, 28,295 acres (11,459 hectares), in the Black Hills, SW S.Dak.; est. 1903. Wind Cave, discovered in 1881, was named for the strong air currents that blow…

Shepard, Alan Bartlett, Jr.

(Encyclopedia) Shepard, Alan Bartlett, Jr., 1923–98, American astronaut, b. East Derry, N.H., grad. Annapolis, 1944. He served on a destroyer during World War II and later had extensive experience as…