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subduction zone

(Encyclopedia) subduction zone, large-scaled narrow region in the earth's crust where, according to plate tectonics, masses of the spreading oceanic lithosphere bend downward into the earth along the…

Ezra, book of the Bible

(Encyclopedia) Ezra, book of the Bible, combined with Nehemiah in the Septuagint to form the book 2 Esdras. In the Vulgate, Ezra and Nehemiah are called 1 and 2 Esdras respectively. Ezra, like…

cable

(Encyclopedia) cable, originally wire cordage of great strength or heavy metal chain used for hauling, towing, supporting the roadway of a suspension bridge, or securing a large ship to its anchor or…

Follow in Their Footsteps

You can be anything you want to be. Here are only a handful of the careers that women have succeeded in.Architects Norma Sklarek was the first African American woman to earn a fellowship from the…

DK Space: Sun

WHAT IS THE SUN MADE OF? WHAT IS THE SURFACE OF THE SUN LIKE? SOLAR ECLIPSESFIND OUT MOREAt the center of the Solar System is the Sun, a vast globe of glowing gas that pours energy into space as…

HIV/AIDS: Where Did HIV Come From?

Where Did HIV Come From?HIV/AIDSIntroductionThe Birth of a DiseaseFrom Epidemic to PandemicWhere Did HIV Come From?Diagnosis & Anti-HIV TherapyVaccination & Natural ResistanceLessons Learned…

Passover: Feast Without Yeast

Why are some foods kosher and others not? by Michael Morrison Passover Dates (from sundown to sundown of the following dates) 2014 — April 14–22 2015 —…

2010 Olympics: Speed Skating

The Olympic demolition derby by Mike Morrison and Christine Frantz Dan Jansen Related Links 2010 Winter OlympicsQuiz: 2010 Winter OlympicsSpeed Skating Through the…

DK Science: Palaeontology

DINOSAUR FOOTPRINTS FOSSILS FIND OUT MORE The study of ancient life, known from FOSSILS, is called palaeontology and scientists who work in this field are known as palaeontologists. By…