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Showing Collection Guides: 1 - 3 of 3

George Ellery Hale Papers

 Collection
Identifier: HaleGE
Overview Digitized: this collection is available on the web. George Ellery Hale (1868–1938) was an influential astrophysicist and science administrator. This collection of Hale’s scientific, professional, and personal papers documents his roles in inventing the spectrohelioscope; promoting international cooperation among scientists; and founding major observatories, as well as the California Institute of Technology, Huntington Library, Astrophysical...
Dates: 1863 - 1950; Majority of material found within 1882 - 1938

Robert Andrews Millikan Papers

 Collection
Identifier: 10132-MS
Overview The core of the Robert A. Millikan Collection at the California Institute of Technology consists of the official papers generated by Millikan during the twenty-five years that he was the executive officer at the Institute. The bulk of the papers consist of correspondence, lecture notes, and other materials dealing with scientific and academic matters.
Dates: 1821–1953

Palomar Observatory Motion Pictures Collection

 Collection
Identifier: 10001-Media
Overview A collection of films showing the construction and operation of the 200-inch Hale Telescope at Palomar Observatory, Palomar Mountain, California. This instrument was the world's largest effective telescope for 45 years (1948-1993). The collection includes footage of the transportation, grinding and polishing of the 200-inch mirror on the campus of the California Institute of Technology. A small portion of this material has been transferred to video tape and digitized from tape to DVD.
Dates: 1935-1996, bulk 1935-1948