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syphilis
(Encyclopedia)syphilis sĭfˈəlĭs [key], contagious sexually transmitted disease caused by the spirochete Treponema pallidum (described by Fritz Schaudinn and Erich Hoffmann in 1905). Syphilis was not widely reco...Joan of Arc
(Encyclopedia)Joan of Arc, Fr. Jeanne D'Arc (zhän därk), 1412?–31, French saint and national heroine, called the Maid of Orléans; daughter of a farmer of Domrémy on the border of Champagne and Lorraine. In...inflection
(Encyclopedia)inflection, in grammar. In many languages, words or parts of words are arranged in formally similar sets consisting of a root, or base, and various affixes. Thus walking, walks, walker have in common ...Handel, George Frideric
(Encyclopedia)Handel, George Frideric hănˈdəl [key], 1685–1759, English composer, b. Halle, Germany. Handel was one of the greatest masters of baroque music, most widely celebrated for his majestic oratorio Me...atomic bomb
(Encyclopedia)atomic bomb or A-bomb, weapon deriving its explosive force from the release of nuclear energy through the fission (splitting) of heavy atomic nuclei. The first atomic bomb was produced at the Los Alam...supernova
(Encyclopedia)supernova, a massive star in the latter stages of stellar evolution that suddenly contracts and then explodes, increasing its energy output as much as a billionfold. Supernovas are the principal distr...mythology
(Encyclopedia)mythology [Greek,=the telling of stories], the entire body of myths in a given tradition, and the study of myths. Students of anthropology, folklore, and religion study myths in different ways, distin...jet propulsion
(Encyclopedia)CE5 Types of jet engines: In the propeller-driven turbine a stream of high-velocity gases provides the power to drive the turbine and turn the propeller. In the jet-driven turbine the stream of gas...science fiction
(Encyclopedia)science fiction, literary genre in which a background of science or pseudoscience is an integral part of the story. Although science fiction is a form of fantastic literature, many of the events recou...Homer
(Encyclopedia)Homer, principal figure of ancient Greek literature; the first European poet. The Odyssey is written in 24 books and begins nearly ten years after the fall of Troy. In the first part, Telemachus, Od...Browse by Subject
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