The geometry of the Great Circle.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Grosskreis.jpg" title="File:Grosskreis.jpg">Grosskreis.jpg</a>: <a href="https://de.wikipedia.org/wiki/Benutzer:Ben-Zin" class="extiw" title="de:Benutzer:Ben-Zin">Ben-Zin</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:McSush" title="User:McSush">McSush</a> (<a href="//commons.wikimedia.org/wiki/User_talk:McSush" title="User talk:McSush"><span class="signature-talk">talk</span></a>)</li></ul>
2009-07-08 23:35
<ul><li><a href="//commons.wikimedia.org/wiki/File:Grosskreis.jpg" title="File:Grosskreis.jpg">Grosskreis.jpg</a></li></ul>