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2011-08-01 14:00:00

CHADDS FORD, Pa., Aug. 1, 2011 /PRNewswire/ -- The upgraded digital display system in the new Grainger Sky Theater isn't the only state-of-the-art technology audiences will experience when they visit Chicago's Adler Planetarium.


Word of the Day
ethnarch
  • The governor of a province or people.
The word 'ethnarch' comes from a Greek word meaning 'ruler of a tribe or nation'.
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