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James Farmer

civil rights leaderBorn: 1920Birthplace: Marshall, Tex. The son of a preacher, Farmer attended Howard University's School of Divinity. In 1942 he founded the Congress of Racial Equality (CORE), a…

Hattie McDaniel

singer and actressBorn: 1895Birthplace: Wichita, Kansas McDaniel began her career as a teen, performing for traveling black minstrel shows in the West, and later sang in theaters and clubs. She…

DK Science & Technology: Electricity Supply

HOW ARE MOST GENERATORS POWERED? WHAT IS THE POWER GRID? WHAT IS ALTERNATING CURRENT? POWER GRID POWER STATIONSFIND OUT MOREElectricity has revolutionized the way we use energy. It can be generated…

DK History: Islamic Civilization

WHAT WAS LIFE LIKE IN MUSLIM LANDS? HOW DID ISLAM SPREAD SO QUICKLY? WHERE DID MUSLIMS TRAVEL TO? WHY WERE TEXTILES SO IMPORTANT? CALIPHSAL ANDALUSFIND OUT MOREIn AD 610, an Arab merchant called…

DK Science: Reproductive System

MALE REPRODUCTIVE SYSTEM FEMALE REPRODUCTIVE SYSTEM JOURNEY OF SPERM AND EGG FERTILIZATION READY TO BE BORN FROM FERTILIZED EGG TO NEWBORN BABY FIND OUT MORE The male and female parts…

DK Science & Technology: Motion

WHAT IS ACCELERATION? HOW IS SPEED MEASURED? FRICTIONFIND OUT MOREFrom molecules in this sheet of paper, to planets in orbits, the objects around us are in constant motion. The simplest motion is…

DK Science: Radio

AM SPECTRUMDIGITAL RADIOFIND OUT MORERadio depends on electricity and magnetism working together to make waves that travel through space at the speed of light. When you tune in your radio, you…

DK Science: Rockets

SOYUZ LAUNCH VEHICLEHOW ROCKETS WORKSATURN V THREE-STAGE MOON ROCKETBIOGRAPHY: ROBERT GODDARD American, 1882-1945FIND OUT MOREThere would be no space exploration without rockets, but they are…

Weather: Going in Circles

Going in CirclesWeatherGoing in CirclesFeeling the PressureHigh Points and LowWhat Makes the Weather Go 'RoundWhat's in a Name?Scales of Motion Now that you understand why the sky is blue and why it…