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Radio telescope and an outbuilding at the National Radio Astronomy Observatory in Green Bank, West Virginia | Library of Congress
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Patient Listening to Radio, Garfield Hospital, Washington DC, USA, National Photo Company, 1924, Foto de Stock, Imagen Derechos Protegidos Pic. GSU-GHI-CIRCA02666 | agefotostock
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United States National Radio Quiet Zone - Wikipedia
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Two Patients Listening to Radio, Garfield Hospital, Washington DC, USA, National Photo Company, 1924, Foto de Stock, Imagen Derechos Protegidos Pic. GSU-GHI-CIRCA02665 | agefotostock
National Radio Astronomy Observatory | observatory, Green Bank, West Virginia, United States | Britannica
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National Radio Quiet Zone — Science Website
United States National Radio Quiet Zone - Wikipedia
Green Bank, West Virginia - A sign at the National Radio Astronomy Observatory warns visitors not to..., Foto de Stock, Imagen Derechos Protegidos Pic. X2J-2567353 | agefotostock
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Green Bank, West Virginia, USA: the only US national Radio Quiet Zone (by FCC 1958-now). Green Bank Telescope is world's largest fully steerable radio telescope. | portfolio.photoseek.com