Photograph of an aperture synthesis, a type of interferometry that mixes signals from a collection of telescopes to produce images having the same angular resolution as an instrument the size of the entire collection. Dated 20th century

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 20th, angular, aperture, archival, archive, black, century, historical, history, instrument, interferometry, photograph, photography, resolution, science, signal, signals, synthesis, telescope, telescopes, white