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polar bear

(Encyclopedia) polar bear, large white bear, Ursus maritimus, formerly Thalarctos maritimus, of the coasts of arctic North America, Asia, and Europe. Polar bears usually live on drifting pack ice,…

cloud

(Encyclopedia) CE5 Approximate heights of some types of clouds cloud, aggregation of minute particles of water or ice suspended in the air. Cloudiness (or proportion of the sky covered by any…

Giving Pledge Participants

The United States is home to roughly 40% of the world's billionaires. About 10% of America's richest citizens have committed to participate in the Giving Pledge and donate at least 50% of their…

DK Space: Neptune

WHAT IS NEPTUNE MADE OF? TRITONFIND OUT MORENeptune is 30 times farther from the Sun than Earth, and has the most powerful hurricanes of any planet in the Solar System. It is a gas giant with faint…

nimbus, in meteorology

(Encyclopedia) nimbus, in meteorology, low, dark, formless cloud covering the entire sky, from which rain or snow is steadily falling. The term is usually applied to any cloud from which rain…

Aiken, Conrad

(Encyclopedia) Aiken, ConradAiken, Conradāˈkĭn [key], 1889–1973, American author, b. Savannah, Ga., grad. Harvard, 1912. Aiken is best known for his poetry, which often is preoccupied with the sound…

Winter Olympics 2006: Torino Preview

What to expect at the 2006 Winter Olympic Games by Gerry Brown Related Links 2006 Winter OlympicsMemorable Olympic MomentsBirth of the Modern OlympicsEncyclopedia: Ancient OlympicsAlso…

Winter X Games 2003

Rocky Mountain High A guide to the 2003 Winter X Games by John Gettings After two years at Mt. Snow in Vermont, the Winter X Games returned to Colorado in 2002 and will be held there…

Winter X Games 2003

Rocky Mountain High A guide to the 2003 Winter X Games by John Gettings After two years at Mt. Snow in Vermont, the Winter X Games returned to Colorado in 2002 and will be held there…