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Geometry: The Importance of Being Direct

The Importance of Being DirectGeometryTaking the Burden out of ProofsThe Law of DetachmentThe Importance of Being DirectProof by Contradiction: The Advantage of Being IndirectThe Given Information:…

Jenner, Edward

(Encyclopedia) Jenner, Edward, 1749–1823, English physician; pupil of John Hunter. His invaluable experiments beginning in 1796 with the vaccination of eight-year-old James Phipps proved that cowpox…

Members of the U.S. Senate, 110th Congress

Dates in left column indicate term in office; birth years are given in parentheses after party affiliation. All terms are for six years and expire in January. Senators listed in italics were elected…

1959 Academy Awards

The 1959 Academy Awards were presented April 4, 1960 at the RKO Pantages Theatre, Hollywood, Calif.Best Motion PictureAnatomy of a Murder, Otto Preminger, producer (Columbia)Ben-Hur, Sam…

Women's Suffrage: The Opposition Grows Grimmer

by Carrie Chapman Catt and Nettie Rogers Shuler Last of All Suffrage ConventionsThe Struggle for the Thirty-Sixth StateThe Opposition Grows GrimmerNo observer accustomed to judge popular…

Palmer, Josephine

(Encyclopedia) Mpama, Josie 1903–1979, anti-apartheid activist. Mpama was a pioneer of women's rights in South Africa and a labor…

astatine

(Encyclopedia) astatineastatineăsˈtətēn, –tĭn [key] [Gr.,=unstable], semimetallic radioactive chemical element; symbol At; at. no. 85; at. wt. of most stable isotope 210; m.p. 302℃ (estimated); b.p.…

Led Zeppelin

(Encyclopedia) Led Zeppelin, English pop music group formed in 1968 by guitarist Jimmy Page (1944–), singer Robert Plant (1948–), bassist John Paul Jones (1946–), and drummer John “Bonzo” Bonham (…