File:Green Banks - Ewen-Purcell Horn Antenna.jpg
Summary
Horn antena used by Harold L. Ewen and <a href="https://en.wikipedia.org/wiki/Edward_M._Purcell" class="extiw" title="w:Edward M. Purcell">Edward M. Purcell</a> at the Lyman Laboratory of Physics at <a href="https://en.wikipedia.org/wiki/Harvard_University" class="extiw" title="w:Harvard University">Harvard University</a> in 1951 for the first detection of radio radiation from nuclear atomic hydrogen gas in the <a href="//commons.wikimedia.org/wiki/Milky_Way" title="Milky Way">milky Way</a> at a wevelength of 21 centimeters. Now at <a href="https://en.wikipedia.org/wiki/National_Radio_Astronomy_Observatory" class="extiw" title="w:National Radio Astronomy Observatory">National Radio Astronomy Observatory</a> in <a href="https://en.wikipedia.org/wiki/Green_Bank,_West_Virginia" class="extiw" title="w:Green Bank, West Virginia">Green Bank, West Virginia</a>.
Licensing
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:15, 5 January 2017 | 2,592 × 3,872 (3.88 MB) | 127.0.0.1 (talk) | Horn antena used by Harold L. Ewen and <a href="https://en.wikipedia.org/wiki/Edward_M._Purcell" class="extiw" title="w:Edward M. Purcell">Edward M. Purcell</a> at the Lyman Laboratory of Physics at <a href="https://en.wikipedia.org/wiki/Harvard_University" class="extiw" title="w:Harvard University">Harvard University</a> in 1951 for the first detection of radio radiation from nuclear atomic hydrogen gas in the <a href="//commons.wikimedia.org/wiki/Milky_Way" title="Milky Way">milky Way</a> at a wevelength of 21 centimeters. Now at <a href="https://en.wikipedia.org/wiki/National_Radio_Astronomy_Observatory" class="extiw" title="w:National Radio Astronomy Observatory">National Radio Astronomy Observatory</a> in <a href="https://en.wikipedia.org/wiki/Green_Bank,_West_Virginia" class="extiw" title="w:Green Bank, West Virginia">Green Bank, West Virginia</a>. |
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