Penrose diagram of an infinite Minkowski universe with words in Macedonian.
<a href="https://en.wikipedia.org/wiki/User:Cronholm144" class="extiw" title="en:User:Cronholm144">Cronholm144</a><br>derivative by <a href="//commons.wikimedia.org/wiki/User:Bjankuloski06" title="User:Bjankuloski06">B. Jankuloski</a>
2014-08-19 21:14:35
<a href="//commons.wikimedia.org/wiki/File:Penrose.svg" title="File:Penrose.svg">File:Penrose.svg</a>