User:Itub/Gallery

Original work

These are all diagrams and figures that I created myself.

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• File:Crabtree catalyst.png
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Original photos

Pictures I've taken myself, that could be of use for relevant articles.

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Derivative work

These are modifications I made to figures and photos that were already on Wikipedia or Wikimedia Commons.

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Free licenses

Most of these I got from Flickr, and are available under Creative Commons licenses. Some come from the Cambridge Computer Laboratory Archive Photos website (also available under Creative Commons).

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• File:Anillo periferico.jpg

Public domain

These are in the public domain due to their age or due to being U.S. government works.

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