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DK Space: Rockets

HOW DO ROCKETS WORK? PROPELLANTFIND OUT MORESpacecraft are launched into space by rockets—the only engines powerful enough to overcome Earth’s gravity and lift objects into space. Most spacecraft…

Hiram Rhodes REVELS, Congress, MS (1827-1901)

Senate Years of Service: 1870-1871Party: RepublicanREVELS, Hiram Rhodes, a Senator from Mississippi; born in Fayetteville, Cumberland County, N.C., on September 27, 1827; attended Beech Grove…

Harry Potter and the Goblet of Fire

Movie Released by Chris Frantz Harry Potter and the Goblet of Fire opened nation wide on November 18, 2005 Related Links Movie Quiz: Harry Potter and the Goblet of Fire Book Quiz: Harry…

Roundup of Recent Science Discoveries, 2005

—By Borgna BrunnerOmo Is Oldest In 2003 the dating of an Ethiopian Homo sapiens fossil, “Herto Man,” was hailed as a milestone in paleoanthropology. At 160,000 years old, Herto Man was a full 50…

Anatomy and
Physiology: You've Got Some Nerve!

You've Got Some Nerve!Anatomy and PhysiologyThe Central and Peripheral Nervous SystemsYou've Got Some Nerve!Gyri and SulciThe Control CenterSensory and Motor ControlThalamus: The Switching…

World War I: Weapons and Technology

Here's a look at the weapons and technology used during the First World War. World War I Mark V-star tank Related Links World War I Battles with the Most Casualties The Deadliest…

John F. Kennedy, Jr., Remembered

John F. Kennedy, Jr., Remembered Reactions of friends, family, and public figures by Beth Rowen Memorials to John F. Kennedy, Jr., appeared at his Tribeca home and the offices of George…

Anatomy and
Physiology: Going Their Separate Ways

Going Their Separate WaysAnatomy and PhysiologyCardiovascular and Lymphatic CirculationVessels To and FroHere, There, EverywhereGoing Their Separate WaysOh, the Pressure!Drainage System The most…

DK Society & Beliefs: The State

WHO WORKS FOR THE STATE? WHY ARE STATES FORMED? HOW DOES A STATE PAY FOR ITS SERVICES? TAXWELFARECENTRAL BANKFIND OUT MOREA state is a territory where one central culture, a set of ideals, and a…