Elvey, Christian T.
| Title | Elvey, Christian T. |
| View | Informal 3 |
| Series | I: Individuals and Groups |
| Description | Yerkes Observatory astronomer Christian T. Elvey is pictured examining a General Electric photoelectric relay and a F.P.-54 Pliotron tube that will help activate the lights of the "Century of Progress," thus opening the Chicago world fair of 1933. The process involves the observatory's 40-inch refractor telescope which will capture light from the star Arcturus and direct it into a photocell of a photo-electric photometer. The resultant current will be transmitted over phone lines to Chicago. |
| Subject Terms | Elvey, Christian Thomas, 1899-1970 | Refracting telescopes | Arcturus (Star) | Century of Progress International Exposition (1933-1934): Chicago, Illinois) | Astronomers |
| Photographer | Blakslee, George C., 1861-1941 |
| Photograph Date | 1933-03-28 |
| Physical Format | Photographic prints; 15.8 x 13.7 cm |
| Location | Williams Bay, Wisconsin |
| Collection | Archival Photographic Files |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf1-05964 |
View information about rights and permissions.
View information about ordering reproductions.