Kalena O le Waterwheel o le tolu-dimensional kalena na faia mai le ono paddles faʻaputuputu i le foliga o se waterwheel. Liliu se tulaga tulagaʻese tutasi-kalena mo lau laupepa komepiuta pei o se waterwheel i masina taʻitasi e faʻaaogaina. Olaga ma Fuafuaga: Tulaga faʻapitoa maua ai le mana e faʻaleleia avanoa ma suia mafaufau o ona tagata faʻaaogaina. Latou te ofoina le faʻamafanafanaga o le vaʻaia, taofi ma faʻaaoga. O loʻo faʻamatalaina i le malamalama ma se vaega o le faʻateʻaina, faʻaputupulaʻia o avanoa. O a matou uluaʻi oloa e faʻaaoga e faʻaaoga le manatu o le "Olaga ma Fuafuaga".