Ibisobanuro birambuye
Ugereranije n'ubukonje bukabije bwera bwera, amahembe y'inzovu yerekana ubworoherane binyuze mu ijwi ryayo ry'umuhondo, bigaragara ko ari ibintu byera munsi y'urumuri rusanzwe, nk'inzovu cyangwa ibishishwa. Bigaragara neza ariko bigumana kumva ubushyuhe no kwegera. Mu gishushanyo mbonera cy'imbere, inkuta zera z'inzovu cyangwa ibikoresho byo mu nzu birashobora kwerekana itandukaniro rito mu mucyo no mu gicucu mu bihe bitandukanye byo gucana: munsi y'umucyo usanzwe, byerekana ubuziranenge no gukorera mu mucyo; munsi yumucyo ushyushye, byongera ikirere gishyushye kandi gitandukanye nibikoresho byuma. Ku rukuta rwimbere, rwagura umwanya ugaragara kandi rukwiranye nuburyo bugezweho, Nordic, nicyaro.