Looking down beam of 50-foot interferometer at mirrors & motors, Mount Wilson Observatory. Interferometer is inside a building. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Interferometers Optical interferometers Optical instruments Reflecting telescopes Mirrors Motors Mount Wilson Observatory Mount Wilson (Calif.) Interiors Photographic prints. (gmgpc)
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