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parity

(Encyclopedia)parity or space parity, in physics, quantity that refers to the relationship between an object or process and the image that it can produce in a mirror. For example, any right-handed object will produ...

Civil War, in U.S. history

(Encyclopedia)Civil War, in U.S. history, conflict (1861–65) between the Northern states (the Union) and the Southern states that seceded from the Union and formed the Confederacy. It is generally known in the So...

Kopit, Arthur

(Encyclopedia) Kopit, Arthur, 1937-2021, American playwright, b. New York, New York, as Arthur Lee Koenig, Harvard Univ. (BS, 1959). Kopit’s parents divorced when h...

Goering, Hermann Wilhelm

(Encyclopedia)Goering or Göring, Hermann Wilhelm both: hĕrˈmän vĭlˈhĕlm göˈrĭng [key], 1893–1946, German National Socialist leader. In World War I he was a hero of the German air force. An early member ...

dune

(Encyclopedia)dune, mound or ridge of wind-blown sand formed in arid regions and along coasts. Dunes are common in most of the great deserts of the world. Often a dune begins to form because material is deposited b...

perennial

(Encyclopedia)perennial, any plant that under natural conditions lives for several to many growing seasons, as contrasted to an annual or a biennial. Botanically, the term perennial applies to both woody and herbac...

public relations

(Encyclopedia)public relations, activities and policies used to create public interest in a person, idea, product, institution, or business establishment. By its nature, public relations is devoted to serving parti...

Proulx, E. Annie

(Encyclopedia)Proulx, E. Annie (Edna Annie Proulx) pro͞o [key], 1935–, American writer, b. Norwich, Conn., grad. Univ. of Vermont (B.A., 1969), Sir George Williams (now Concordia) Univ., Montreal (M.A., 1973). S...

Boston Symphony Orchestra

(Encyclopedia)Boston Symphony Orchestra, founded in 1881 by Henry Lee Higginson, who was its director and financial backer until 1918. The orchestra performed at the Old Boston Music Hall for nearly 20 years until ...

Munich Pact

(Encyclopedia)Munich Pact, 1938. In the summer of 1938, Chancellor Hitler of Germany began openly to support the demands of Germans living in the Sudetenland (see Sudetes) of Czechoslovakia for an improved status. ...