focus for this week: Why don't birds fly backwards ?
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File:System boundary.PNG
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Summary
Picture taken from commons, see [1]
see version history at commons for list of authors
For more info about the licence see the original page at commons itself.
This image has been (or is hereby) released into the public domain by its author, Wavesmikey at the English Wikipedia project. This applies worldwide.
In case this is not legally possible: Wavesmikey grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Licensing:
The copyright holder of this work released it into the public domain. This applies worldwide.
In case this is not legally possible: the copyright holder grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:35, 30 March 2009 | | 931×818 (43 KB) | Erkan Yilmaz (Talk | contribs) | (Picture taken from commons, see [http://commons.wikimedia.org/wiki/File:System_boundary.svg] see [http://commons.wikimedia.org/w/index.php?title=File:System_boundary.svg&action=history version history] at commons for list of authors For more info about ) |
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File links
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![[1]](http://commons.wikimedia.org/wiki/File:System_boundary.svg){kind=link}
