Yerkes Observatory Buildings, Instruments, Equipment, Grounds
| Title | Yerkes Observatory Buildings, Instruments, Equipment, Grounds |
| View | Century of Progress 14:2216 (2008-003) |
| Series | VI: Yerkes Observatory |
| Description | Astronomers Christian T. Elvey (seated), Paul Rudnick (standing), and Helen Mead Pillans (at the radio) on May 27, 1933 wait next to the Yerkes Observatory 40-inch refractor telescope which will capture light from the star Arcturus and direct it into a photocell of the photo-electric photometer placed on the table. The resultant current will be transmitted over phone lines to Chicago where it will activate the lights of the "Century of Progress" during the evening, thus officially opening the world fair. |
| Subject Terms | Elvey, Christian Thomas, 1899-1970 | Pillans, Helen Mead, 1909-1984 | Rudnick, Paul, born 1911 | Refracting telescopes | Arcturus (Star) | Century of Progress International Exposition (1933-1934): Chicago, Illinois) |
| Photograph Date | 1933-05-27 |
| Physical Format | Glass plate negatives; 19.6 x 24.6 cm |
| Location | 373 West Geneva Street | Williams Bay, Wisconsin |
| Campus Grid | Y01 |
| Collection | Archival Photographic Files |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf6-00458 |
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