http://creativecommons.org/licenses/by-sa/2.5/ <p>Cylinder image from <a rel='nofollow' href="http://pt.wikipedia.org/wiki/Imagem:Cilindro_comp.jpg">pt.wikipedia.org</a>, licensed under the <a class="wikilink" href="http://swik.net/License:GFDL"><span class="caps">GFDL</span></a>.</p> Tue, 30 May 2006 14:38:07 -0700 Thu, 07 Jun 2007 05:31:08 -0700