File:Tuska Pictured Electro-Magnetic Waves Figure 2.png
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Tuska_Pictured_Electro-Magnetic_Waves_Figure_2.png (353 × 294 pixels, file size: 10 KB, MIME type: image/png)
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 | This file is an original and may be obsolete for general use, but is kept for historical or archival use. As such, it should not be modified or deleted except to correct upload or technical errors. Any modified versions or replacements of this image should be uploaded with a different file name. |
Summary
| Description |
English: Electric field lines of radio waves emanating from a vertical quarter-wave monopole radio transmitting antenna over ground. This is a cross section through the three dimensional radiation pattern, which is symmetrical about the axis of the antenna. The waves of electric field lines spread out from the antenna at the speed of light. It can be seen that the maximum power is radiated in horizontal directions. |
| Date | |
| Source |
December 1915 QST  |
| Author | Clarence D. Tuska |
Licensing
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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, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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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/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:58, 2 July 2009 | | 353 × 294 (10 KB) | Sagsaw | {{Information |Description={{en|1=Electric field lines propagating away from a vertical antenna over ground.}} |Source=December 1915 QST thumb |Author=Clarence D. Tuska |Date=1915-12 |Permission= |other_versions= }} <!--{ |
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- Usage on fr.wikipedia.org
