File:Corn cob pipe catwhisker radio 1922.png

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Original file(300 × 780 pixels, file size: 337 KB, MIME type: image/png)

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Summary[edit]

Description
English: A small novelty crystal radio built into a corn-cob pipe.
Date
Source Downloaded from Jack Binns, On the Crest of the Radio Wave in Popular Science, Vol. 101, No. 3 Sept. 1922, Modern Publishing Co., New York, p. 70 on Google Books
Author Unknown
Permission
(Reusing this file)
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923. See this page for further explanation.
United States
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.


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File history

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Date/TimeThumbnailDimensionsUserComment
current00:09, 21 June 2009Thumbnail for version as of 00:09, 21 June 2009300 × 780 (337 KB)Dicklyon{{Information |Description={{en|1=A small cat's whisker radio made on a corn-cob pipe.}} |Source=[http://books.google.com/books?id=6CgDAAAAMBAJ&pg=PA70&dq=radio+short-wave+wavelength+carrier&lr=&as_brr=3&ei=ryI8St2gF4OmkASS4bS6BQ Popular Science, Sept. 19

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