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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
quilisma
  • In medieval musical notation, a sign or neume denoting a shake or trill.
The word 'quilisma' comes from a Greek word meaning 'a roll'.