MATTER IN THE UNIVERSEOUR PLACE IN THE UNIVERSECROWDED CITYOUR PLANETTHE SOLAR SYSTEMOUR GALAXYTHE EXPANDING UNIVERSEWHERE SPACE BEGINSUNIVERSAL FORCESFIND OUT MOREEverything that exists – stars,…
The Tangent RatioGeometryThe Unit Circle and TrigonometryThe Tangent RatioThe Sine RatioThe Cosine RatioAnd the RestHow Does This Relate to the Unit Circle? Trigonometry got its start from…
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…
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…
(Encyclopedia) hockey, field, outdoor stick and ball game. Field hockey, like many sports, is of obscure origins, but traces in one form or another to the ancient Egyptians and Persians, making it…
(Encyclopedia) gross national product (GNP), in economics, a quantitative measure of a nation's total economic activity, generally assessed yearly or quarterly. In estimating the GNP, only the final…
(Encyclopedia) americiumamericiumămərĭˈshēəm [key], artificially produced radioactive chemical element; symbol Am; at. no. 95; mass no. of most stable isotope 243; m.p. about 1,175℃; b.p. about 2,600…
(Encyclopedia) pain, unpleasant or hurtful sensation resulting from stimulation of nerve endings. The stimulus is carried by nerve fibers to the spinal cord and then to the brain, where the nerve…
(Encyclopedia) manakinmanakinmănˈəkən [key], common name for stocky, tiny birds, most measuring less than 5 in. (12.5 cm) long, comprising 59 species in the family Pipridae. Manakins are found…
(Encyclopedia) pittapittapĭtˈə [key], name used to refer to a genus (Pitta) of small, plump, brightly colored birds. The genus, including some twenty-three species, constitutes the whole of the…
