McDonald Observatory

McDonald Observatory

McDonald Observatory
Mirror Preparation 1
II: Buildings and Grounds
Workers at the Corning Glass Works in Corning, New York pour the 82-inch mirror for the McDonald Observatory telescope. The molten mass of Pyrex glass was cooled under a hood for almost six months, a process designed to prevent strains in the finished mirror.
Glassworkers | Mirrors--Design and construction | Reflecting telescopes | Manufacturing processes | Corning Glass Works
Warner & Swasey Company
Photographic prints; 19.2 x 23.9 cm
Corning, New York
Archival Photographic Files
University of Chicago Library, Special Collections Research Center

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