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Time and Space: It's All Relative

Imagine you’re an astronaut in the future, and your ship has the ability to travel at the speed of light. You jump into your spaceship when you’re 20 years old, travel 331 light years on your journey…

Everest Almanac

div.everestDiv{ border-top:solid 1px #dcdcdc; padding:20px 0; margin:10px 0;}         Our guide to the world's highest peak: those…

Reaction to Sept. 2001 Tragedy

Reaction to Terrorist Attack of Sept. 11, 2001   U.S. Leaders and Officials George W. Bush President of the United States "Terrorist attacks can shake the foundations of our…

DK Science: Geological Time

THE FOSSIL RECORDRADIOMETRIC DATINGFIND OUT MOREGeologists (scientists who study rocks) divide the time since the Earth was formed until today into chunks called periods. During the various…

Geometry: Using and Proving Angle Complements

Using and Proving Angle ComplementsGeometryProving Segment and Angle RelationshipsExploring MidpointsHow Many Midpoints Are There?Proving Angles Are CongruentUsing and Proving Angle ComplementsUsing…

Stock Market Decimalization

Stock Market Goes Decimal Complicated fractions abandoned in favor of pennies by David Johnson   The New York Stock Exchange, NYSE, the world's largest, is…

DK Science: Circuits

ELECTRICITY IN THE HOMEPROTECTING CIRCUITSBATTERIESRESISTANCEFIND OUT MOREAn electrical circuit provides pathways along which current can flow to do work. Current is driven by a power source,…

Marian Wright Edelman

lawyer, civil rights activist, children's advocateBorn: 6/6/1939Birthplace: Bennettsville, S.C. The youngest of five children of a Baptist preacher, Edelman attended Spelman College in Atlanta and…

Roger Corman

director, producer, screenwriter, actorBorn: 1926Birthplace: Detroit It's hard to know how Hollywood could have survived without Corman. Hailed as “The king of the B movies,” his legacy is not so…