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pulsar

(Encyclopedia) pulsar, in astronomy, a neutron star that emits brief, sharp pulses of energy instead of the steady radiation associated with other natural sources. The study of pulsars began when…

Warren Commission

(Encyclopedia) Warren Commission, popular name given to the U.S. Commission to Report upon the Assassination of President John F. Kennedy, established (Nov. 29, 1963) by executive order of President…

I-M

Jovita IdarSamuel Elmer ImesTopa IncaIshiDaniel “Chappie” James, Jr.Mae C. JemisonGish Jen Thomas L. JenningsFrederick McKinley JonesBarbara Charline JordanPercy Lavon JulianJohanna July Betty Mae…

Video Games: Timeline

Timeline: Video GamesPart I: Early Yearsby Amanda Kudler   1958 1961 1965 1970 1972 Next: 1975-1984   1958 Physicist Willy Higinbotham invents the…

NBA Individual Leaders, 2006–2007 Season

POINTS PER GAMEMinimum of 49 games played Gm MPGPPGKobe Bryant, L.A. Lakers7740.831.6Carmelo Anthony, Denver6538.228.9Gilbert Arenas, Washington7439.828.4Lebron James, Cleveland7841.027.3Ray…

logical positivism

(Encyclopedia) logical positivism, also known as logical or scientific empiricism, modern school of philosophy that attempted to introduce the methodology and precision of mathematics and the natural…

Satan

(Encyclopedia) Satan [Heb.,=adversary], traditional opponent of God and humanity in Judaism and Christianity. In Scripture and literature the role of the opponent is given many names, such as Apolyon…

Palmerston, Henry John Temple, 3d Viscount

(Encyclopedia) Palmerston, Henry John Temple, 3d Viscount, 1784–1865, British statesman. His viscountcy, to which he succeeded in 1802, was in the Irish peerage and therefore did not prevent him from…

Washington, D.C. Memorials and Landmarks

Arlington National Cemetery Arlington National Cemetery occupies 612 acres in Virginia on the Potomac River, directly opposite Washington. In 1864, Arlington became a military…