University of Illinois at Chicago Century of Progress World's Fair, 1933-1934 (University of Illinois at Chicago)
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Subject
Astronomy (2)
Science (2)
Stages (Platforms) (2)
Buildings (1)
Electricity (1)
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Date
ca. 1933-1934 (2)

Creator
Kaufmann & Fabry co. (1)
Museum of Science and ... (1)

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[Promoters used the star Arcturus to ceremoniously open A Century of Progress in 1933. It was believed
1. [Promoters used the star Arcturus to ceremoniously open A Century of Progress in 1933. It was believed that the light of Arcturus took 40 years to reach the Earth, and this fact was used as a way to connect the Century of Progress with Chicago's earlier world fair in 1893.]
"When light beams from the star Arcturus were picked up by photoelectric tubes at four observatories,
2. "When light beams from the star Arcturus were picked up by photoelectric tubes at four observatories, signals flashed on this display board on the rostrum of the Hall of Science to the show the audience how the official lighting of A Century of Progress was accomplished."
  

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