Iz Wikipedije, proste enciklopedije
The Petersen graph as a unit distance graph (all edges the same length).
David Benbennick wrote this SVG file. I release all rights to it.
The edge lengths are not exactly the same. They are only accurate to about 1 part in 1042. That's accurate enough so that if you scale this graph up to the size of the observable universe (about 1024 km, according to w:Universe), the error is about the size of the classical electron radius.
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