Chifukwa chiyani pali nyali imodzi yokha ya nkhuni?
Pali nkhani yasayansi yokhala ndi kuwala kokha kwampukutu umodzi, komwe kumayikidwa mbali ya woyendetsa, kuti apange galimotoyo kuyendetsa. Malinga ndi malamulo okhazikitsa magetsi agalimoto, nyali imodzi yapumule iyenera kuyikidwa, pomwe palibe lamulo lovomerezeka pa kukhazikitsa nyali za agni kutsogolo. Ngati pali imodzi, nyali yakutsogolo iyenera kukhala iwiri. Pofuna kuwongolera mtengo, mitundu ina yotsika kwambiri imatha kuletsa nyali yakutsogolo ndikukhazikitsa nyale imodzi yammbuyo. Chifukwa chake, poyerekeza ndi nyali ziwiri zakumbuyo za nkhuni, nyale imodzi yamgonje imatha kukonza galimoto yakumbuyo. Malingaliro a nyali kumbuyo ndi ofanana kwambiri ndi nyali yamoto, yomwe ndi yosavuta kusokoneza magetsi awiriwo ndikuyambitsa ngozi. Chifukwa chake, nyali imodzi yokha ndi yowonetsera bwino kwambiri pagalimoto.
