File:Contrail and tsunami warning sign.jpg
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| Description | Contrail that looked strangely similar to the tsunami warning sign, which is seen at w:street light below, San Francisco, California. This contrail is example of w:Crow Instability. w:Crow Instability is an inviscid line-w:vortex instability, named after its discoverer S. C. Crow. It is observed when the vortices caused by aircraft are being whirled from being otherwise straight contrails into spirals then donut-shaped rings. |
| Date | |
| Source | Own work |
| Author | Brocken Inaglory |
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I, the copyright holder of this work, hereby publish it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:27, 7 March 2008 | | 2,200 × 1,467 (1.49 MB) | Mbz1 (talk | contribs) | Reverted to version as of 03:25, 14 January 2008 |
| 10:00, 14 January 2008 |  | 2,079 × 1,362 (2.86 MB) | Arpingstone (talk | contribs) | Levelled | |
| 03:25, 14 January 2008 |  | 2,200 × 1,467 (1.49 MB) | Mbz1 (talk | contribs) | {{Information |Description=Contrails strangely resembles the [http://en.wikipedia.org/wiki/Tsunami tsunami] warning sign in San Francisco, California |Source=self-made |Date=2007 |Author= [http://home.comcast.net/~milazinkova/Fogshadow.html Mila Z |
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