It is a combination of one of the simplest patterns, forming the border - a circle, and also a very complicated pattern inside it. The boundary circle was created by the first discharge, mainly by the mechanical forces.
Ni mchanganyiko wa moja ya mifumo ya rahisi, na kutengeneza mpaka - mduara, na pia muundo ngumu sana ndani yake. mduara mpaka iliundwa na kutokwa kwanza, hasa kwa vikosi vya mitambo.