National Radio Astronomy Observatory

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Stock #:200086
Type: Postcard
Era: Chrome
City: Green Bank
State: West Virginia (WV)
County: Pocahontas
Publisher: Valley Views
Size: 3.5" x 5.5" (9 x 14 cm)

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National Radio Astronomy Observatory Green Bank, West Virginia This unique instrument using three 85-foot radio telescopes is called an interferometer. By moving the two 85-foot telescopes in the fore-ground to different observing stations along a 5000 foot roadway with respect to a fixed, third 85-foot telescope, it is possible to simulate an antenna several thousands of feet in diameter

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