UPS ndi kuchira mphamvu: mmene kuwoloka hedgehog ndi njoka?
Kuchokera kumaphunziro afizikiki tikudziwa kuti mota yamagetsi imathanso kugwira ntchito ngati jenereta; izi zimagwiritsidwa ntchito kubweza magetsi. Ngati tili ndi chinthu chachikulu choyendetsedwa ndi mota yamagetsi, ndiye kuti tikamabowola, mphamvu yamakina imatha kusinthidwa kukhala mphamvu yamagetsi ndikubwezeretsedwanso mudongosolo. Njirayi imagwiritsidwa ntchito mwakhama pamakampani ndi zoyendera: imalola kuchepetsa kugwiritsa ntchito mphamvu, [...]