Sobanura uburyo 'Umubare w'impinduka' ($ n $) mu mpeta igumana impinduramatwara bigira ingaruka ku gukwirakwiza impagarara zogosha ku mpande zombi.

Mumuzingi uhinduranya impeta, umutwaro wa axial ukwirakwizwa muburyo bwose. Ariko, kubera ko impinduka zahujwe no gukomeza kuzenguruka, guhangayikishwa no gukata ntabwo ari kimwe. Ihinduka rya mbere (ryegereye umutwaro) mubisanzwe ritwara ijanisha rirenze gato ryumutwaro. Igice cyose cyogosha ni $ A_s = n \ cdot π \ cdot D \ cdot t $. Ku mpeta 2-ihinduranya, ubushobozi bwo gukata bwikubye kabiri ubw'impeta imwe ihinduranya ubunini bumwe. Ibi biratanga ubushobozi bwo gusunika cyane muburyo bworoshye bwa radiyo. Mu bikoresho byamabuye y'agaciro aremereye, impeta 3-zihinduranya-4 zikoreshwa mugukwirakwiza imitwaro nini ya axial hejuru yubuso bunini, bikarinda urukuta rwa ruhago.