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Why did the dinosaurs die out?

There are dozens of theories to explain a probable cause or causes. Throughout the Mesozoic Era, individual dinosaur species were evolving and becoming extinct for various reasons. The unusually…

Hawaii Volcanoes National Park

(Encyclopedia) Hawaii Volcanoes National Park, 209,695 acres (84,926 hectares), on Hawaii island, Hawaii; est. 1916. The park contains two of the most active volcanoes in the world—Kilauea with its…

Recent Science Discoveries, 2000

Audible Snowflakes and Other Discoveries More science highlights discovered in 2000 by Otto Johnson More Discoveries IntroductionIce Age Haute…

Punchbowl

(Encyclopedia) Punchbowl, hill, 500 ft (152 m) high, in the city of Honolulu, SE Oahu island, Hawaii. In the bowllike extinct volcanic crater at the summit (reached by a scenic drive) is the National…

Pele, Hawaiian goddess

(Encyclopedia) PelePelepāˈlā [key], Hawaiian goddess of the volcano. Her traditional home is Halemaumau, the fiery pit crater within the Kilauea caldera on the island of Hawaii.

Rogue

(Encyclopedia) Rogue, river, c.200 mi (320 km) long, rising in SW Oreg., in the Cascade Range N of Crater Lake. It flows southwest and west through a fertile valley (noted for its orchard fruits) and…

meteorite

(Encyclopedia) meteorite, meteor that survives the intense heat of atmospheric friction and reaches the earth's surface. Because of the destructive effects of this friction, only the very largest…

DK Science: Moon

THE MOON IN ECLIPSETHE LUNAR SURFACEPHASES OF THE MOONFIND OUT MORECircling round Earth once a month, the Moon is our planet’s only natural satellite. As the Moon orbits Earth, our view of…

Askja

(Encyclopedia) AskjaAskjaäsˈkyä [key], volcano, c.4,950 ft (1,510 m) high, E central Iceland; one of the highest in Europe. Its great eruption of 1875 devastated a large area; Askja last erupted in…

Fry, Sir Edward

(Encyclopedia) Fry, Sir Edward, 1827–1918, English lawyer. In 1877 he was made a judge of the high court of justice, and he served (1883–92) as judge of the court of appeal. Later he arbitrated…