Image: Green Banks - Ewen-Purcell Horn Antenna
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Description: Horn antena used by Harold L. Ewen and Edward M. Purcell at the Lyman Laboratory of Physics at Harvard University in 1951 for the first detection of radio radiation from nuclear atomic hydrogen gas in the milky Way at a wevelength of 21 centimeters. Now at National Radio Astronomy Observatory in Green Bank, West Virginia.
Title: Green Banks - Ewen-Purcell Horn Antenna
Credit: Own work
Author: Jarek Tuszyński
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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