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Helenus

(Encyclopedia) HelenusHelenushĕlˈənəs [key], in Greek mythology, Trojan who was gifted with prophetic powers; son of Priam and Hecuba. When Helen was given to Deiphobus after the death of Paris,…

Hogg, James Stephen

(Encyclopedia) Hogg, James Stephen, 1851–1906, governor of Texas (1891–95), b. Cherokee co., Tex. He was admitted (1875) to the Texas bar, and was county attorney (1879–81), district attorney (1881–…

Joseph, king of Portugal

(Encyclopedia) Joseph, 1714–77, king of Portugal (1750–77), son and successor of John V. Little inclined to rule, his reign was dominated by his minister, the marquês de Pombal. After Lisbon was…

Bacchylides

(Encyclopedia) BacchylidesBacchylidesbăkĭlˈĭdēz [key], fl. c.470 b.c., Greek lyric poet, b. Ceos; nephew of Simonides of Ceos. A contemporary of Pindar, he was patronized by Hiero I. His poetry is…

spell

(Encyclopedia) spell, word, formula, or incantation believed to have magical powers. The spell can be used for evil or good ends; if evil, it is a technique of sorcery. Many authorities believe that…

Baseball's Sale of the Century

Baseball'sSale of the Century by John Gettings Just because the baseball season is over doesn't mean Mark McGwire and Sammy Sosa have to stop breaking records. Baseball fans can expect…

Algebra: Simplifying Radical Expressions

Simplifying Radical Expressions Algebra Wrestling with Radicals Introducing the Radical Sign Simplifying Radical Expressions Unleashing Radical Powers Radical Operations Solving Radical…

DK Science: Energy Sources

ENERGY FROM THE SUNINSIDE A NUCLEAR POWER STATIONRENEWABLE ENERGYGEOTHERMAL ENERGYFIND OUT MOREEverything we do takes energy, which we get from many different sources. Most of the energy on Earth…

DK Science: Work

EFFICIENCYPOWERJOULESFIND OUT MOREScientists use the word work to describe the energy needed to do a task, by making a force move through a distance. The amount of work done is equal to the…

Earth Day by the Numbers

April 22, 2017, marks the 47th anniversary of Earth Day—a day intended to inspire awareness and appreciation for the Earth's natural environment. Organizers started Earth Day in response to a…