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File:Grote Antenna Wheaton.gif

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Summary

Description
English: Amateur radio astronomer Grote Reber´s 9 meter (31.4 ft) parabolic radio telescope antenna, which he built in his backyard in Illinois in 1937. This was the second radio telescope ever built (after Karl Jansky's dipole array antenna), the first parabolic radio telescope and the first large parabolic dish, serving as the prototype for large dish radio telescopes built after World War 2. Its construction and the sky survey Reber did with it helped found the field of radio astronomy.
Čeština: První talířová anténa Grote Robera
Date
Source http://www.nrao.edu/whatisra/hist_reber.shtml
Author Grote Reber

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Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2006-03-25 14:01 Beatgr 813×1024× (324998 bytes) Grote Weber's original Radio Antenna - 1937 Wheaton, IL Photo - NRAO archives http://www.nrao.edu/whatisra/hist_reber.shtml

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public domain

applies to jurisdiction: United States of America
determination method or standard: work of the federal government of the United States

inception

1937

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Date/TimeThumbnailDimensionsUserComment
current21:52, 15 October 2012Thumbnail for version as of 21:52, 15 October 2012813 × 1,024 (317 KB)OgreBot(BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2006-03-25 14:01:12 by Beatgr
11:54, 25 June 2008Thumbnail for version as of 11:54, 25 June 2008476 × 600 (249 KB)Gothic2{{Information |Description= Grote Rober´s first antena dish (První talířová anténa Grote Robera) |Source= English version of wikipedia http://en.wikipedia.org/wiki/Image:Grote_Antenna_Wheaton.gif |Date= 1937 |Author= Grote Reber |Permission= |othe

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