(Encyclopedia) sleep apnea, episodes of interrupted breathing during sleep. Obstructive sleep apnea is a common disorder in which relaxation of muscles in the throat repeatedly close off the airway…
(Encyclopedia) whale shark, large, plankton-eating shark, Rhincodon typus, found in all tropical seas of the world. Whale sharks are the largest fish in the world. A female typically reaches about 46…
actorBorn: 10/2/1948Birthplace: Evansville, Indiana American actor best known for his role as Hawk, on the TV show Spenser: For Hire (1985–88) and as Capt. Benjamin Sisko on the hit sci-fi TV…
(Encyclopedia) Kootenay National Park, 543 sq mi (1,406 sq km), SE British Columbia, Canada; est. 1920. In the Rocky Mts. near Kootenay Lake, it contains high peaks, glaciers, deep canyons, and hot…
(Encyclopedia) Sigsbee, Charles Dwight, 1845–1923, American naval officer, b. Albany, N.Y. He saw service in the Gulf of Mexico in the Civil War, was subsequently stationed with the Asian squadron,…
(Encyclopedia) Zion National Park, 146,592 acres (59,349 hectares), SW Utah. First proclaimed a national monument in 1909, it was enlarged several times and established as a national park in 1919.…
Born: Apr. 13, 1963Chess Azerbaijani who became youngest player (22 years, 210 days) ever to win world championship as Soviet in 1985; defeated countryman Anatoly Karpov for title; split with…
actorBorn: 1/28/1981Birthplace: Cedar Rapids, Iowa Wood enrolled in modeling school in 1988 and had small roles in Back to the Future, Part II (1989) and Internal Affairs (1990) before gaining…
ENERGY FROM THE SUNINSIDE A NUCLEAR POWER STATIONRENEWABLE ENERGYGEOTHERMAL ENERGYFIND OUT MOREEverything we do takes energy, which we get from many different sources. Most of the energy on Earth…
All Parts, Big and SmallAnatomy and PhysiologyThe Structure of the Muscles and Muscle CellsAll Parts, Big and SmallThe Neuromuscular JunctionYou've Fallen into My Treppe!Sliding Home with…
